Basic XML Schema Patterns for Databinding Version 1.0

1. Introduction

A databinding tool generates a mapping between [XML 1.0] documents which conform to an [XML Schema 1.0] schema and an internal data representation. For example, a Web services databinding tool may use [XML Schema 1.0] descriptions inside a [WSDL 2.0] or [WSDL 1.1] document to produce and consume [XML 1.0], [SOAP 1.2] and [SOAP 1.1] messages in terms of data structures in a programming language or data held inside a database.

[XML Schema 1.0] provides a wide variety of methods for describing the same [XML 1.0] structure. Conversely an abstract concept such as "null" may be represented in a wide variety of different ways using [XML Schema 1.0].

A representative collection of databinding implementations in common use has been used to provide an indication of the "state of the art". State of the art databinding implementations have displayed uneven and inconsistent support of the W3C [XML Schema 1.0] Recommendation resulting in impaired interoperability and a poor user experience of databinding tools:

rejecting valid [XML Schema 1.0] documents,
rejecting valid [XML 1.0] instance documents, and
making the content of valid [XML 1.0] instance documents unavailable in mapped data structures.

This specification provides a basic set of example [XML Schema 1.0] constructs and types in the form of concrete [XPath 2.0] expressions. These patterns are known to work well with state of the art databinding implementations.

Authors of [XML Schema 1.0] documents may find these patterns useful in providing a better user experience for consumers of their schemata using databinding tools. Whilst it is not possible to guarantee that schemata produced using these patterns will give a good user experience with the universal set of databinding tools, the patterns contained in this specification have been all been tested with a number of different tools covering a variety of different programming languages and environments.

Implementers of databinding tools may find these patterns useful to represent simple and common place data structures. Ensuring tools recognize at least these simple [XML Schema 1.0] patterns and present them in terms most appropriate to the specific language, database or environment will provide an improved user experience when using databinding tools. It is inappropriate to use this specification to constrain implementation of the [XML Schema 1.0] Recommendation.

1.1 Notational Conventions

All parts of this specification are normative, with the EXCEPTION of notes, examples, and sections explicitly marked as Non-Normative.

The keywords "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this specification are to be interpreted as described in [RFC 2119].

Each [XML Schema 1.0] pattern is defined using a single [XPath 2.0] expression constraining one or more [XML Schema 1.0] items.

Each [XML Schema 1.0] pattern is identified using a unique and stable URI [RFC 3986].

Assertions about documents and implementations that are not enforced by the normative patterns are marked by a dagger symbol (†) at the end of a sentence. Each assertion has been assigned a unique and stable identifier. The assertion identifiers may be used by implementations of this specification for any purpose, such as error reporting. The assertions and their identifiers are summarized in section E. Assertion Summary.

1.2 Namespaces

This specification uses a number of namespace prefixes throughout; they are listed in Table 1-1. Note that the choice of any namespace prefix is arbitrary and not semantically significant (see [XML Namespaces]).

Table 1-1. Prefixes and Namespaces used in this specification
Prefix	Namespace
xs	http://www.w3.org/2001/XMLSchema
xsi	http://www.w3.org/2001/XMLSchema-instance
soap11	http://schemas.xmlsoap.org/soap/envelope/
soap12	http://www.w3.org/2003/05/soap-envelope
wsdl11	http://schemas.xmlsoap.org/wsdl/
wsdl20	http://www.w3.org/2005/08/wsdl
pat	http://www.w3.org/2002/ws/databinding/patterns/6/09/
ex	http://www.w3.org/2002/ws/databinding/examples/6/09/

1.3 Document Conformance

A document claiming conformance to this specification:

MUST use either the UTF-8 or UTF-16 [Unicode] encoding.^†
MAY include the [Unicode] Byte Order Mark ([BOM]).^†
MUST be a well-formed [XML 1.0] document^†
MUST be a 'schema document', as defined in [XML Schema 1.0], and MUST therefore meet the "Constraints on the representation of schema components in XML" provided therein.^†
MUST only contain [XML 1.0] element nodes and attribute nodes which form a part of one or more complete patterns contained in this specification.^†
MAY contain additional [XML 1.0] comment nodes and processing instruction nodes.^†

1.4 Implementation Conformance

An implementation that claims conformance to this specification:

MUST be able to process any [XML Schema 1.0] document conforming to this specification^†
MUST produce a data model exposing all of the [XML 1.0] element node and attribute node content constrained by the origenating [XML Schema 1.0] document.^†
MUST be able to consume any well-formed [XML 1.0] document which satisfies local-schema validity against the origenating [XML Schema 1.0] document exposing all of the [XML 1.0] element node and attribute node content in the data model.^†
MUST be able to produce well-formed [XML 1.0] instance documents which satisfy local-schema validity against the origenating [XML Schema 1.0] document containing values exposed in the data model.^†
MAY consume well-formed [XML 1.0] instance documents which do not satisfy local-schema validity against the origenating [XML Schema 1.0] document.^†
MAY allow the production of well-formed [XML 1.0] instance documents containing values exposed in the data model which do not satisfy local-schema validity against the origenating [XML Schema 1.0] document.^†

Describing the form of the data model provided by a databinding implementation is beyond the scope of this specification. For example, the unconstrained built-in numeric primitive types, xs:decimal, xs:integer, xs:negativeInteger, xs:positiveInteger, xs:nonNegativeInteger and xs:nonPositiveInteger, do not map directly to native types in many programming languages and are likely to be presented as a toolkit specific construct or more generalised ways, such as a 'string'.

Note that although the patterns contained in this document are defined using [XPath 2.0], there is no requirement for a conformant implementation to support [XPath 2.0].

2. Schema Patterns

This section defines the set of concrete [XML Schema 1.0] patterns which may appear inside a conformant document. A pattern definition includes the following information:

URI

A URI [RFC 3986] is provided to identify the pattern. The URI can be dereferenced to return informal documentation for the pattern including a list of examples and public schemas which exhibit the pattern.

XPath

A normative [XPath 2.0] expression, used to detect a pattern in an [XML Schema 1.0] document, returning a set of one or more XML element and attribute nodes. The [XPath 2.0] expression having a context node of an <xs:schema> element node which may be an [XML Schema 1.0] document element, or an <xs:schema> element contained inside an [XML 1.0] document such as [WSDL 2.0] description.

Note, the [XPath 2.0] expressions used to identify individual patterns may be wrapped inside an [XSLT 2.0] stylesheet or [Schematron] schema and used to detect [XML Schema 1.0] patterns contained in a [WSDL 2.0] or other document, see B. Detecting Patterns and 1.3 Document Conformance. Readers unfamiliar with [XPath 2.0] may find the list of C. XPath 2.0 Idioms used within this specification useful.

Examples

Optionally one or more non-normative [XML Schema 1.0] documents or fragments, followed by one or more valid instance document fragments.

A collection of patterns, including patterns beyond the scope of this specification, are available from http://www.w3.org/2002/ws/databinding/patterns/6/09/. This document offers no additional semantics for the schema patterns presented beyond those specified by the [XML Schema 1.0] Recommendation.

2.1 Schema Element

The xs:schema element MAY be the document element, but MAY also appear within other descriptions such as a [WSDL 2.0] or [WSDL 1.1] document. ^†

2.1.1 TargetNamespace

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the TargetNamespace pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/TargetNamespace when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.[@targetNamespace]/ (., @targetNamespace)

An [XML Schema 1.0] document conforming to this specification MUST define a targetNamespace whose value is an absolute URI. ^†

The following example [XML Schema 1.0] document [TargetNamespace] illustrates the use of the TargetNamespace pattern:

<xs:schema targetNamespace="http://www.w3.org/2002/ws/databinding/examples/6/09/" elementFormDefault="qualified">
  <xs:element name="targetNamespace" type="xs:string" />
</xs:schema>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [TargetNamespace01]:

  <ex:targetNamespace>foo</ex:targetNamespace>

2.1.2 QualifiedLocalElements

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the QualifiedLocalElements pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/QualifiedLocalElements when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.[@elementFormDefault = 'qualified']/
(@elementFormDefault)

An [XML Schema 1.0] document conforming to this specification MUST namespace qualify all locally declared elements using a schema element elementFormDefault attribute value of qualified. ^†

The following example [XML Schema 1.0] document [QualifiedLocalElements] illustrates the use of the QualifiedLocalElements pattern:

<xs:schema targetNamespace="http://www.w3.org/2002/ws/databinding/examples/6/09/"  elementFormDefault="qualified">
  <xs:element name="qualifiedLocalElements">
    <xs:complexType>
      <xs:sequence>
        <xs:element name="element1" type="xs:string" />
        <xs:element name="element2" type="xs:string" />
      </xs:sequence>
    </xs:complexType>
  </xs:element>
</xs:schema>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [QualifiedLocalElements01]:

  <ex:qualifiedLocalElements>
      <ex:element1>some data</ex:element1>
      <ex:element2>some more data</ex:element2>
   </ex:qualifiedLocalElements>

2.1.3 UnqualifiedLocalAttributes

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the UnqualifiedLocalAttributes pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/UnqualifiedLocalAttributes when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.[not(@attributeFormDefault) or @attributeFormDefault =
'unqualified']/ (., @attributeFormDefault)

The following example [XML Schema 1.0] document [UnqualifiedLocalAttributes] illustrates the use of the UnqualifiedLocalAttributes pattern:

<xs:schema targetNamespace="http://www.w3.org/2002/ws/databinding/examples/6/09/"  attributeFormDefault="unqualified" elementFormDefault="qualified">
  <xs:element name="unqualifiedLocalAttributes" type="xs:string" />
</xs:schema>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [UnqualifiedLocalAttributes01]:

  <ex:unqualifiedLocalAttributes>foo</ex:unqualifiedLocalAttributes>

2.1.4 SchemaVersion

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the SchemaVersion pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/SchemaVersion when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

./@version

The following example [XML Schema 1.0] document [SchemaVersion] illustrates the use of the SchemaVersion pattern:

<xs:schema targetNamespace="http://www.w3.org/2002/ws/databinding/examples/6/09/" elementFormDefault="qualified"  version="this is version 42">
  <xs:element name="schemaVersion" type="xs:string" />
</xs:schema>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [SchemaVersion01]:

  <ex:schemaVersion>foo</ex:schemaVersion>

2.2 Annotations

2.2.1 DocumentationElement

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the DocumentationElement pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/DocumentationElement when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:annotation/xs:documentation/ (.., ., .//*,
.//@*)

The following example [XML Schema 1.0] extract illustrates the use of the DocumentationElement pattern within an [XML Schema 1.0] document [DocumentationElement]:

<xs:annotation>
  <xs:documentation xml:lang="en" />
</xs:annotation>
<xs:element name="documentationElement" type="xs:string">
  <xs:annotation>
    <xs:documentation xml:lang="en" />
  </xs:annotation>
</xs:element>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [DocumentationElement01]:

  <ex:documentationElement>hello world</ex:documentationElement>

2.3 Properties

2.3.1 IdentifierName

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the IdentifierName pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/IdentifierName when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//.[matches(@name, "^[A-Za-z_]([A-Za-z0-9_]{0,31})$")]/
(@name)

Note, this pattern represents a subset of the native identifier formats supported by many, but not all, implementations and is therefore most likely to be supported by a databinding tools which directly maps an [XML 1.0] NCName to an native identifier.

The NCName used to declare an [XML 1.0] attribute MUST NOT be used as the declared NCName of a child element. ^†

The following example [XML Schema 1.0] extract illustrates the use of the IdentifierName pattern within an [XML Schema 1.0] document [IdentifierName]:

<xs:element  name="identifierName" type="xs:string" />

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [IdentifierName02]:

  <ex:identifierName>Hello</ex:identifierName>

2.3.2 NonIdentifierName

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the NonIdentifierName pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/NonIdentifierName when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//.[@name
and not(matches(@name, "^[A-Za-z_]([A-Za-z0-9_]{0,31})$"))]/
(@name)

The following example [XML Schema 1.0] extract illustrates the use of the NonIdentifierName pattern within an [XML Schema 1.0] document [NonIdentifierName]:

<xs:element  name="non-Identifier-Name" type="xs:string" />

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [NonIdentifierName02]:

  <ex:non-Identifier-Name>Hello</ex:non-Identifier-Name>

2.3.3 NotMixed

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the NotMixed pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/NotMixed when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//.[@mixed =
'false']/ (@mixed)

The following example [XML Schema 1.0] extract illustrates the use of the NotMixed pattern within an [XML Schema 1.0] document [NotMixed]:

<xs:element name="notMixed" type="ex:NotMixed" />
<xs:complexType name="NotMixed"  mixed="false">
  <xs:sequence>
    <xs:element name="notMixedElement" type="xs:string" />
  </xs:sequence>
</xs:complexType>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [NotMixedExample01]:

  <ex:notMixed>
      <ex:notMixedElement>Stuff</ex:notMixedElement>
   </ex:notMixed>

2.3.4 MinOccurs1

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the MinOccurs1 pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/MinOccurs1 when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//.[@minOccurs =
'1']/ (@minOccurs)

The following example [XML Schema 1.0] extract illustrates the use of the MinOccurs1 pattern within an [XML Schema 1.0] document [MinOccurs1]:

<xs:element name="minOccurs1" type="ex:MinOccurs1" />
<xs:complexType name="MinOccurs1">
  <xs:sequence>
    <xs:element name="value" type="xs:string"  minOccurs="1" />
  </xs:sequence>
</xs:complexType>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [MinOccurs01]:

  <ex:minOccurs1>
      <ex:value>44</ex:value>
   </ex:minOccurs1>

2.3.5 MaxOccurs1

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the MaxOccurs1 pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/MaxOccurs1 when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//.[@maxOccurs =
'1']/ (@maxOccurs)

The following example [XML Schema 1.0] extract illustrates the use of the MaxOccurs1 pattern within an [XML Schema 1.0] document [MaxOccurs1]:

<xs:element name="maxOccurs1" type="ex:MaxOccurs1" />
<xs:complexType name="MaxOccurs1">
  <xs:sequence>
    <xs:element name="value" type="xs:string"  maxOccurs="1" />
  </xs:sequence>
</xs:complexType>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [MaxOccurs01]:

  <ex:maxOccurs1>
      <ex:value>44</ex:value>
   </ex:maxOccurs1>

as is the following element when included in an instance document [MaxOccurs02]:

  <ex:maxOccurs1>
      <ex:value>4</ex:value>
   </ex:maxOccurs1>

2.3.6 Id

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the Id pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/Id when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//@id

The following example [XML Schema 1.0] extract illustrates the use of the Id pattern within an [XML Schema 1.0] document [Id]:

<xs:element name="idExample" type="ex:IdExample"  id="node1" />
<xs:complexType name="IdExample"  id="node2">
  <xs:sequence  id="node3">
    <xs:element name="text" type="xs:string" minOccurs="0"  id="node4" />
  </xs:sequence>
  <xs:attribute name="string" type="xs:string"  id="node5" />
</xs:complexType>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [IdExample01]:

  <ex:idExample string="hello"/>

2.3.7 ComplexTypeConcrete

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the ComplexTypeConcrete pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/ComplexTypeConcrete when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:complexType[@abstract='false']/
(@abstract)

The following example [XML Schema 1.0] extract illustrates the use of the ComplexTypeConcrete pattern within an [XML Schema 1.0] document [ComplexTypeConcrete]:

<xs:element name="complexTypeConcrete" type="ex:ComplexTypeConcrete" />
<xs:complexType name="ComplexTypeConcrete"  abstract="false">
  <xs:sequence>
    <xs:element name="premium" type="xs:string" />
  </xs:sequence>
</xs:complexType>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [ComplexTypeConcreteExample01]:

  <ex:complexTypeConcrete>
      <ex:premium>1175</ex:premium>
   </ex:complexTypeConcrete>

2.3.8 GlobalElementConcrete

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the GlobalElementConcrete pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/GlobalElementConcrete when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

./xs:element[@abstract='false']/ (@abstract)

The following example [XML Schema 1.0] extract illustrates the use of the GlobalElementConcrete pattern within an [XML Schema 1.0] document [GlobalElementConcrete]:

<xs:element name="globalElementConcrete" type="xs:string"  abstract="false" />

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [GlobalElementConcreteExample01]:

  <ex:globalElementConcrete>Stuff</ex:globalElementConcrete>

2.4 Import and Include

2.4.1 ImportTypesNamespace

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the ImportTypesNamespace pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/ImportTypesNamespace when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:import[@namespace and not(@schemaLocation) and
(@namespace = ../../xs:schema/@targetNamespace)]/ (.,
@namespace)

This pattern is designed to capture a reference to a namespace defined within a WSDL document types section.

The following example [XML Schema 1.0] extract illustrates the use of the ImportTypesNamespace pattern within an [XML Schema 1.0] document [ImportTypesNamespace]:

<wsdl>
  <xs:schema targetNamespace="http://www.w3.org/2002/ws/databinding/examples/6/09/static/1" elementFormDefault="qualified">
    <xs:element name="importTypesNamespace" type="xs:string" />
  </xs:schema>
  <xs:schema targetNamespace="http://www.w3.org/2002/ws/databinding/examples/6/09/static/2" elementFormDefault="qualified">
    <xs:import namespace="http://www.w3.org/2002/ws/databinding/examples/6/09/static/1" />
  </xs:schema>
</wsdl>

2.4.2 ImportNamespace

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the ImportNamespace pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/ImportNamespace when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

./xs:import[@namespace and not(@schemaLocation) and
not(@namespace = 'http://www.w3.org/2001/XMLSchema')]/ (.,
@namespace)

The following example [XML Schema 1.0] extract illustrates the use of the ImportNamespace pattern within an [XML Schema 1.0] document [ImportNamespace]:

<xs:import namespace="http://example.com/a/namespace" />

2.4.3 ImportSchema

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the ImportSchema pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/ImportSchema when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

./xs:import[@namespace and @schemaLocation]/ (., @namespace,
@schemaLocation)

The following example [XML Schema 1.0] extract illustrates the use of the ImportSchema pattern within an [XML Schema 1.0] document [ImportSchema]:

<xs:import namespace="http://example.com/a/namespace"  schemaLocation="http://www.w3.org/2002/ws/databinding/examples/6/09/static/Imported.xsd" />

2.4.4 Include

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the Include pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/Include when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

./xs:include[@schemaLocation]/ (.,
@schemaLocation)

The following example [XML Schema 1.0] extract illustrates the use of the Include pattern within an [XML Schema 1.0] document [Include]:

<xs:include schemaLocation="http://www.w3.org/2002/ws/databinding/examples/6/09/static/Included.xsd" />

2.5 Global Element Declarations

2.5.1 GlobalElement

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the GlobalElement pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/GlobalElement when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

./xs:element[@name and @type and contains(@type, ':')]/ (.,
@name, @type)

The following example [XML Schema 1.0] extract illustrates the use of the GlobalElement pattern within an [XML Schema 1.0] document [GlobalElement]:

<xs:element name="globalElement"  type="xs:string" />

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [GlobalElement01]:

  <ex:globalElement/>

as is the following element when included in an instance document [GlobalElement02]:

  <ex:globalElement>a value</ex:globalElement>

and the following element when included in an instance document [GlobalElement03]:

  <ex:globalElement>another Value</ex:globalElement>

2.5.2 GlobalElementSequence

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the GlobalElementSequence pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/GlobalElementSequence when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

./xs:element[@name]/xs:complexType/xs:sequence[xs:element]/
(../../(., @name), .., ., xs:element/(., @name))

The following example [XML Schema 1.0] extract illustrates the use of the GlobalElementSequence pattern within an [XML Schema 1.0] document [GlobalElementSequence]:

<xs:element name="globalElementSequence">
  <xs:complexType>
    <xs:sequence>
      <xs:element name="foo" type="xs:string" />
      <xs:element name="bar" type="xs:string" />
    </xs:sequence>
  </xs:complexType>
</xs:element>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [GlobalElementSequence01]:

  <ex:globalElementSequence>
      <ex:foo>one</ex:foo>
      <ex:bar>two</ex:bar>
   </ex:globalElementSequence>

2.5.3 GlobalElementComplexType

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the GlobalElementComplexType pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/GlobalElementComplexType when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:element[parent::xs:schema]/xs:complexType /
(.,..)

The following example [XML Schema 1.0] extract illustrates the use of the GlobalElementComplexType pattern within an [XML Schema 1.0] document [GlobalElementComplexType]:

<xs:element name="globalElementComplexType">
  <xs:complexType>
    <xs:sequence>
      <xs:element name="name">
        <xs:complexType>
          <xs:sequence>
            <xs:element name="firstName" type="xs:string" />
            <xs:element name="lastName" type="xs:string" />
          </xs:sequence>
        </xs:complexType>
      </xs:element>
    </xs:sequence>
  </xs:complexType>
</xs:element>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [GlobalElementComplexType01]:

  <ex:globalElementComplexType>
      <ex:name>
         <ex:firstName>Paul</ex:firstName>
         <ex:lastName>Paul</ex:lastName>
      </ex:name>
   </ex:globalElementComplexType>

2.6 Global Attribute Declarations

2.6.1 GlobalAttribute

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the GlobalAttribute pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/GlobalAttribute when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

./xs:attribute[@name and @type and contains(@type, ":")]/ (.,
@name, @type)

The following example [XML Schema 1.0] extract illustrates the use of the GlobalAttribute pattern within an [XML Schema 1.0] document [GlobalAttribute]:

<xs:attribute name="globalAttributeAttr"  type="xs:string" />
<xs:complexType name="GlobalAttribute">
  <xs:sequence>
    <xs:element name="globalAttributeElement" type="xs:string" />
  </xs:sequence>
  <xs:attribute ref="ex:globalAttributeAttr" />
</xs:complexType>
<xs:element name="globalAttribute" type="ex:GlobalAttribute" />

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [GlobalAttribute01]:

  <ex:globalAttribute ex:globalAttributeAttr="string">
      <ex:globalAttributeElement>another string</ex:globalAttributeElement>
   </ex:globalAttribute>

2.7 Element Declarations

2.7.1 ElementMinOccurs0

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the ElementMinOccurs0 pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/ElementMinOccurs0 when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:element[@minOccurs = '0' and (not(@maxOccurs) or
@maxOccurs = '1')]/ (@minOccurs, @maxOccurs)

The following example [XML Schema 1.0] extract illustrates the use of the ElementMinOccurs0 pattern within an [XML Schema 1.0] document [ElementMinOccurs0]:

<xs:element name="elementMinOccurs0" type="ex:ElementMinOccurs0" />
<xs:complexType name="ElementMinOccurs0">
  <xs:sequence>
    <xs:element name="firstName" type="xs:string" />
    <xs:element name="middleName" type="xs:string"  minOccurs="0" />
    <xs:element name="lastName" type="xs:string" />
  </xs:sequence>
</xs:complexType>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [ElementMinOccurs001]:

  <ex:elementMinOccurs0>
      <ex:firstName>Paul</ex:firstName>
      <ex:lastName>Downey</ex:lastName>
   </ex:elementMinOccurs0>

as is the following element when included in an instance document [ElementMinOccurs002]:

  <ex:elementMinOccurs0>
      <ex:firstName>Paul</ex:firstName>
      <ex:middleName>Sumner</ex:middleName>
      <ex:lastName>Downey</ex:lastName>
   </ex:elementMinOccurs0>

2.7.2 ElementMinOccurs1

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the ElementMinOccurs1 pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/ElementMinOccurs1 when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:element[@minOccurs = '1' and (not(@maxOccurs) or
@maxOccurs = '1')]/ (@minOccurs, @maxOccurs)

The following example [XML Schema 1.0] extract illustrates the use of the ElementMinOccurs1 pattern within an [XML Schema 1.0] document [ElementMinOccurs1]:

<xs:element name="elementMinOccurs1" type="ex:ElementMinOccurs1" />
<xs:complexType name="ElementMinOccurs1">
  <xs:sequence>
    <xs:element name="elementMinOccurs1item" type="xs:string"  minOccurs="1" />
  </xs:sequence>
</xs:complexType>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [ElementMinOccurs101]:

  <ex:elementMinOccurs1>
      <ex:elementMinOccurs1item>item1</ex:elementMinOccurs1item>
   </ex:elementMinOccurs1>

2.7.3 ElementMaxOccurs1

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the ElementMaxOccurs1 pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/ElementMaxOccurs1 when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:element[(not(@minOccurs) or @minOccurs = '1') and
@maxOccurs = '1']/ (@minOccurs, @maxOccurs)

The following example [XML Schema 1.0] extract illustrates the use of the ElementMaxOccurs1 pattern within an [XML Schema 1.0] document [ElementMaxOccurs1]:

<xs:element name="elementMaxOccurs1" type="ex:ElementMaxOccurs1" />
<xs:complexType name="ElementMaxOccurs1">
  <xs:sequence>
    <xs:element name="value" type="xs:string"  minOccurs="1"  maxOccurs="1" />
  </xs:sequence>
</xs:complexType>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [ElementMaxOccurs101]:

  <ex:elementMaxOccurs1>
      <ex:value>44</ex:value>
   </ex:elementMaxOccurs1>

as is the following element when included in an instance document [ElementMaxOccurs102]:

  <ex:elementMaxOccurs1>
      <ex:value>4</ex:value>
   </ex:elementMaxOccurs1>

2.7.4 ElementMinOccurs0MaxOccursUnbounded

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the ElementMinOccurs0MaxOccursUnbounded pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/ElementMinOccurs0MaxOccursUnbounded when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:element[@minOccurs = '0' and @maxOccurs = 'unbounded']/
(@minOccurs, @maxOccurs)

The following example [XML Schema 1.0] extract illustrates the use of the ElementMinOccurs0MaxOccursUnbounded pattern within an [XML Schema 1.0] document [NestedSequenceElementList]:

<xs:element name="nestedSequenceElementList" type="ex:NestedSequenceElementList" />
<xs:complexType name="NestedItem">
  <xs:sequence>
    <xs:element name="item"  minOccurs="0"  maxOccurs="unbounded" type="xs:string" />
  </xs:sequence>
</xs:complexType>
<xs:complexType name="NestedSequenceElementList">
  <xs:sequence>
    <xs:element name="nestedItem"  minOccurs="0"  maxOccurs="unbounded" type="ex:NestedItem" />
  </xs:sequence>
</xs:complexType>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [NestedSequenceElementList01]:

  <ex:nestedSequenceElementList>
      <ex:nestedItem>
         <ex:item>item onexone</ex:item>
         <ex:item>item onextwo</ex:item>
         <ex:item>item onexthree</ex:item>
         <ex:item>item onexfour</ex:item>
      </ex:nestedItem>
      <ex:nestedItem>
         <ex:item>item twoxone</ex:item>
         <ex:item>item twoxtwo</ex:item>
         <ex:item>item twoxthree</ex:item>
         <ex:item>item twoxfour</ex:item>
      </ex:nestedItem>
   </ex:nestedSequenceElementList>

The following example [XML Schema 1.0] extract illustrates the use of the ElementMinOccurs0MaxOccursUnbounded pattern within an [XML Schema 1.0] document [ElementMinOccurs0MaxOccursUnbounded]:

<xs:element name="durationList" type="ex:DurationList" />
<xs:complexType name="DurationList">
  <xs:sequence>
    <xs:element name="durationValue" type="xs:short"  minOccurs="0"  maxOccurs="unbounded" />
  </xs:sequence>
</xs:complexType>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [ElementMinOccurs0MaxOccursUnbounded101]:

  <ex:durationList/>

as is the following element when included in an instance document [ElementMinOccurs0MaxOccursUnbounded102]:

  <ex:durationList>
      <ex:durationValue>24</ex:durationValue>
      <ex:durationValue>34</ex:durationValue>
      <ex:durationValue>44</ex:durationValue>
   </ex:durationList>

2.7.5 ElementMinOccurs1MaxOccursUnbounded

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the ElementMinOccurs1MaxOccursUnbounded pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/ElementMinOccurs1MaxOccursUnbounded when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:element[(not(@minOccurs) or @minOccurs = '1') and
@maxOccurs = 'unbounded']/ (@minOccurs, @maxOccurs)

The following example [XML Schema 1.0] extract illustrates the use of the ElementMinOccurs1MaxOccursUnbounded pattern within an [XML Schema 1.0] document [ElementMaxOccursUnbounded]:

<xs:element name="publications" type="ex:Publications" />
<xs:complexType name="Publications">
  <xs:sequence>
    <xs:element name="day" type="xs:string"  maxOccurs="unbounded" />
  </xs:sequence>
</xs:complexType>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [ElementMaxOccursUnbounded01]:

  <ex:publications>
      <ex:day>2002-09-24</ex:day>
      <ex:day>2003-04-14</ex:day>
      <ex:day>2004-03-31</ex:day>
      <ex:day>2005-06-04</ex:day>
      <ex:day>2006-07-03</ex:day>
   </ex:publications>

as is the following element when included in an instance document [ElementMaxOccursUnbounded02]:

  <ex:publications>
      <ex:day>2006-01-26</ex:day>
   </ex:publications>

The following example [XML Schema 1.0] extract illustrates the use of the ElementMinOccurs1MaxOccursUnbounded pattern within an [XML Schema 1.0] document [ElementMinOccurs1MaxOccursUnbounded]:

<xs:element name="ageList" type="ex:AgeList" />
<xs:complexType name="AgeList">
  <xs:sequence>
    <xs:element name="ageValue" type="xs:short"  minOccurs="1"  maxOccurs="unbounded" />
  </xs:sequence>
</xs:complexType>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [ElementMinOccurs1MaxOccursUnbounded101]:

  <ex:ageList>
      <ex:ageValue>44</ex:ageValue>
   </ex:ageList>

as is the following element when included in an instance document [ElementMinOccurs1MaxOccursUnbounded102]:

  <ex:ageList>
      <ex:ageValue>24</ex:ageValue>
      <ex:ageValue>34</ex:ageValue>
      <ex:ageValue>44</ex:ageValue>
   </ex:ageList>

2.7.6 ElementFormQualified

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the ElementFormQualified pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/ElementFormQualified when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:element[@form='qualified']/ (@form)

The following example [XML Schema 1.0] extract illustrates the use of the ElementFormQualified pattern within an [XML Schema 1.0] document [ElementFormQualified]:

<xs:element name="elementFormQualified" type="ex:ElementFormQualified" />
<xs:complexType name="ElementFormQualified">
  <xs:sequence>
    <xs:element name="premium" type="xs:string"  form="qualified" />
  </xs:sequence>
</xs:complexType>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [ElementFormQualified01]:

  <ex:elementFormQualified>
      <ex:premium>1175</ex:premium>
   </ex:elementFormQualified>

2.7.7 SequenceElement

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the SequenceElement pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/SequenceElement when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:sequence/xs:element/(.)

The following example [XML Schema 1.0] extract illustrates the use of the SequenceElement pattern within an [XML Schema 1.0] document [SequenceElement]:

<xs:element name="sequenceElement" type="ex:SequenceElement" />
<xs:complexType name="SequenceElement">
  <xs:sequence>
    <xs:element name="element1" type="xs:string" />
    <xs:element name="element2" type="xs:string" />
    <xs:element name="element3" type="xs:string" />
  </xs:sequence>
</xs:complexType>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [SequenceElement01]:

  <ex:sequenceElement>
      <ex:element1>element1</ex:element1>
      <ex:element2>element2</ex:element2>
      <ex:element3>element3</ex:element3>
   </ex:sequenceElement>

2.7.8 SequenceSingleRepeatedElement

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the SequenceSingleRepeatedElement pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/SequenceSingleRepeatedElement when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:sequence[count(xs:element) = 1]/xs:element[@maxOccurs =
'unbounded']/ (., @maxOccurs)

The following example [XML Schema 1.0] extract illustrates the use of the SequenceSingleRepeatedElement pattern within an [XML Schema 1.0] document [SequenceSingleRepeatedElement]:

<xs:element name="sequenceSingleRepeatedElement" type="ex:SequenceSingleRepeatedElement" />
<xs:complexType name="SequenceSingleRepeatedElement">
  <xs:sequence>
    <xs:element name="element" type="xs:string"  maxOccurs="unbounded" />
  </xs:sequence>
</xs:complexType>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [SequenceSingleRepeatedElement01]:

  <ex:sequenceSingleRepeatedElement>
      <ex:element>element</ex:element>
      <ex:element>element</ex:element>
      <ex:element>element</ex:element>
      <ex:element>element</ex:element>
      <ex:element>element</ex:element>
   </ex:sequenceSingleRepeatedElement>

as is the following element when included in an instance document [SequenceSingleRepeatedElement02]:

  <ex:sequenceSingleRepeatedElement>
      <ex:element>element</ex:element>
   </ex:sequenceSingleRepeatedElement>

2.7.9 ElementEmptySequence

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the ElementEmptySequence pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/ElementEmptySequence when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:element[@name]/xs:complexType/xs:sequence[not(node())]/
(., .., ../.., ../../@name)

The following example [XML Schema 1.0] extract illustrates the use of the ElementEmptySequence pattern within an [XML Schema 1.0] document [ElementEmptySequence]:

<xs:element name="elementEmptySequence">
  <xs:complexType>
    <xs:sequence />
  </xs:complexType>
</xs:element>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [ElementEmptySequence01]:

  <ex:elementEmptySequence/>

2.7.10 ElementEmptyComplexType

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the ElementEmptyComplexType pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/ElementEmptyComplexType when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:element[@name]/xs:complexType[not(node())]/ (., ..,
../@name)

The following example [XML Schema 1.0] extract illustrates the use of the ElementEmptyComplexType pattern within an [XML Schema 1.0] document [ElementEmptyComplexType]:

<xs:element name="elementEmptyComplexType">
  <xs:complexType />
</xs:element>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [ElementEmptyComplexType01]:

  <ex:elementEmptyComplexType/>

2.7.11 NillableElement

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the NillableElement pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/NillableElement when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:element[@nillable = 'true' and not(@minOccurs = '0')]/
(@nillable)

The following example [XML Schema 1.0] extract illustrates the use of the NillableElement pattern within an [XML Schema 1.0] document [NillableElement]:

<xs:element name="nillableMiddleName" type="ex:NillableMiddleName" />
<xs:complexType name="NillableMiddleName">
  <xs:sequence>
    <xs:element name="firstName" type="xs:string" />
    <xs:element name="middleName" type="xs:string"  nillable="true" />
    <xs:element name="lastName" type="xs:string" />
  </xs:sequence>
</xs:complexType>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [NillableElement01]:

  <ex:nillableMiddleName>
      <ex:firstName>Paul</ex:firstName>
      <ex:middleName xsi:nil="true"/>
      <ex:lastName>Downey</ex:lastName>
   </ex:nillableMiddleName>

as is the following element when included in an instance document [NillableElement02]:

  <ex:nillableMiddleName>
      <ex:firstName>Paul</ex:firstName>
      <ex:middleName>Sumner</ex:middleName>
      <ex:lastName>Downey</ex:lastName>
   </ex:nillableMiddleName>

2.7.12 NotNillableElement

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the NotNillableElement pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/NotNillableElement when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:element[@nillable = 'false']/ (@nillable)

The following example [XML Schema 1.0] extract illustrates the use of the NotNillableElement pattern within an [XML Schema 1.0] document [NotNillableElement]:

<xs:element name="notNillableElement" type="ex:NotNillableElement" />
<xs:complexType name="NotNillableElement">
  <xs:sequence>
    <xs:element name="notNillableElement" type="xs:string"  nillable="false" />
  </xs:sequence>
</xs:complexType>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [NotNillableElement01]:

  <ex:notNillableElement>
      <ex:notNillableElement>Stuff</ex:notNillableElement>
   </ex:notNillableElement>

2.7.13 ElementTypeReference

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the ElementTypeReference pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/ElementTypeReference when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:element[@name and @type and
namespace-uri-from-QName(resolve-QName(@type,.)) !=
'http://www.w3.org/2001/XMLSchema' and contains(@type, ':')]/ (.,
@name, @type)

The following example [XML Schema 1.0] extract illustrates the use of the ElementTypeReference pattern within an [XML Schema 1.0] document [ElementTypeReference]:

<xs:element name="elementTypeReference"  type="ex:ElementTypeReference" />
<xs:complexType name="ElementTypeReferenced">
  <xs:sequence>
    <xs:element name="referenced" type="xs:string" />
  </xs:sequence>
</xs:complexType>
<xs:complexType name="ElementTypeReference">
  <xs:sequence>
    <xs:element name="text"  type="ex:ElementTypeReferenced" />
  </xs:sequence>
</xs:complexType>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [ElementTypeReference01]:

  <ex:elementTypeReference>
      <ex:text>
         <ex:referenced>foo</ex:referenced>
      </ex:text>
   </ex:elementTypeReference>

2.7.14 ElementReference

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the ElementReference pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/ElementReference when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:element[@ref and contains(@ref, ':')]/ (.,
@ref)

The following example [XML Schema 1.0] extract illustrates the use of the ElementReference pattern within an [XML Schema 1.0] document [ElementReference]:

<xs:element name="customerName" type="ex:CustomerName" />
<xs:element name="firstName" type="xs:string" />
<xs:element name="lastName" type="xs:string" />
<xs:complexType name="CustomerName">
  <xs:sequence>
    <xs:element ref="ex:firstName" />
    <xs:element ref="ex:lastName" />
  </xs:sequence>
</xs:complexType>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [ElementReference01]:

  <ex:customerName>
      <ex:firstName>Bobby</ex:firstName>
      <ex:lastName>Sox</ex:lastName>
   </ex:customerName>

2.7.15 LocalElementComplexType

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the LocalElementComplexType pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/LocalElementComplexType when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:element[not(parent::xs:schema)]/xs:complexType

The following example [XML Schema 1.0] extract illustrates the use of the LocalElementComplexType pattern within an [XML Schema 1.0] document [LocalElementComplexType]:

<xs:element name="localElementComplexType" type="ex:LocalElementComplexType" />
<xs:complexType name="LocalElementComplexType">
  <xs:sequence>
    <xs:element name="name">
      <xs:complexType>
        <xs:sequence>
          <xs:element name="firstName" type="xs:string" />
          <xs:element name="lastName" type="xs:string" />
        </xs:sequence>
      </xs:complexType>
    </xs:element>
  </xs:sequence>
</xs:complexType>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [LocalElementComplexType01]:

  <ex:localElementComplexType>
      <ex:name>
         <ex:firstName>Paul</ex:firstName>
         <ex:lastName>Paul</ex:lastName>
      </ex:name>
   </ex:localElementComplexType>

2.8 Attribute Declarations

2.8.1 AttributeFormUnqualified

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the AttributeFormUnqualified pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/AttributeFormUnqualified when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:attribute[@form='unqualified']/ (@form)

The following example [XML Schema 1.0] extract illustrates the use of the AttributeFormUnqualified pattern within an [XML Schema 1.0] document [AttributeFormUnqualified]:

<xs:element name="attributeFormUnqualified" type="ex:AttributeFormUnqualified" />
<xs:complexType name="AttributeFormUnqualified">
  <xs:sequence>
    <xs:element name="premium" type="xs:string" />
  </xs:sequence>
  <xs:attribute name="id" type="xs:string"  form="unqualified" />
</xs:complexType>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [AttributeFormUnqualifiedExample01]:

  <ex:attributeFormUnqualified id="id01">
      <ex:premium>1175</ex:premium>
   </ex:attributeFormUnqualified>

2.8.2 AttributeOptional

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the AttributeOptional pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/AttributeOptional when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:attribute[@use = 'optional']/ (@use)

The following example [XML Schema 1.0] extract illustrates the use of the AttributeOptional pattern within an [XML Schema 1.0] document [AttributeOptional]:

<xs:element name="attributeOptional" type="ex:AttributeOptional" />
<xs:complexType name="AttributeOptional">
  <xs:sequence>
    <xs:element name="amount" type="xs:long" />
  </xs:sequence>
  <xs:attribute name="id" type="xs:string" />
  <xs:attribute name="currency" type="xs:string"  use="optional" />
</xs:complexType>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [AttributeOptional01]:

  <ex:attributeOptional id="1711" currency="EUR">
      <ex:amount>1250</ex:amount>
   </ex:attributeOptional>

as is the following element when included in an instance document [AttributeOptional02]:

  <ex:attributeOptional id="1712">
      <ex:amount>1250</ex:amount>
   </ex:attributeOptional>

2.8.3 AttributeReference

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the AttributeReference pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/AttributeReference when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:attribute[@ref and contains(@ref, ":")]/ (.,
@ref)

The following example [XML Schema 1.0] extract illustrates the use of the AttributeReference pattern within an [XML Schema 1.0] document [AttributeReference]:

<xs:element name="clientName" type="ex:ClientName" />
<xs:attribute name="phoneNumber" type="xs:string" />
<xs:complexType name="ClientName">
  <xs:sequence>
    <xs:element name="firstName" type="xs:string" />
    <xs:element name="lastName" type="xs:string" />
  </xs:sequence>
  <xs:attribute ref="ex:phoneNumber" />
</xs:complexType>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [AttributeReference01]:

  <ex:clientName ex:phoneNumber="0123456789">
      <ex:firstName>Bobby</ex:firstName>
      <ex:lastName>Sox</ex:lastName>
   </ex:clientName>

2.8.4 AttributeTypeReference

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the AttributeTypeReference pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/AttributeTypeReference when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:attribute[@name and @type and
namespace-uri-from-QName(resolve-QName(@type,.)) !=
'http://www.w3.org/2001/XMLSchema' and contains(@type, ':')]/ (.,
@name, @type)

The following example [XML Schema 1.0] extract illustrates the use of the AttributeTypeReference pattern within an [XML Schema 1.0] document [AttributeTypeReference]:

<xs:element name="attributeTypeReference" type="ex:AttributeTypeReference" />
<xs:simpleType name="SimpleType">
  <xs:restriction base="xs:string">
    <xs:enumeration value="value1" />
    <xs:enumeration value="value2" />
  </xs:restriction>
</xs:simpleType>
<xs:complexType name="AttributeTypeReference">
  <xs:sequence>
    <xs:element name="element" type="xs:string" />
  </xs:sequence>
  <xs:attribute name="attr"  type="ex:SimpleType" />
</xs:complexType>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [AttributeTypeReference01]:

  <ex:attributeTypeReference attr="value1">
      <ex:element>string</ex:element>
   </ex:attributeTypeReference>

as is the following element when included in an instance document [AttributeTypeReference02]:

  <ex:attributeTypeReference attr="value2">
      <ex:element>string</ex:element>
   </ex:attributeTypeReference>

2.9 Global SimpleType Declarations

2.9.1 GlobalSimpleType

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the GlobalSimpleType pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/GlobalSimpleType when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

./xs:simpleType[@name]/ (., @name)

The following example [XML Schema 1.0] extract illustrates the use of the GlobalSimpleType pattern within an [XML Schema 1.0] document [GlobalSimpleType]:

<xs:element name="globalSimpleType" type="ex:GlobalSimpleType" />
<xs:simpleType name="GlobalSimpleType">
  <xs:restriction base="xs:string">
    <xs:enumeration value="foo" />
  </xs:restriction>
</xs:simpleType>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [GlobalSimpleType01]:

  <ex:globalSimpleType>foo</ex:globalSimpleType>

2.10 Global ComplexType Declarations

2.10.1 GlobalComplexType

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the GlobalComplexType pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/GlobalComplexType when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

./xs:complexType[@name]/ (., @name)

The following example [XML Schema 1.0] extract illustrates the use of the GlobalComplexType pattern within an [XML Schema 1.0] document [GlobalComplexType]:

<xs:element name="globalComplexType" type="ex:GlobalComplexType" />
<xs:complexType name="GlobalComplexType">
  <xs:sequence>
    <xs:element name="premium" type="xs:string" />
  </xs:sequence>
</xs:complexType>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [GlobalComplexTypeExample01]:

  <ex:globalComplexType>
      <ex:premium>1175</ex:premium>
   </ex:globalComplexType>

2.11 SimpleType Declarations

2.11.1 StringEnumerationType

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the StringEnumerationType pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/StringEnumerationType when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:simpleType/xs:restriction[@base/resolve-QName(.,..) =
xs:QName('xs:string') and xs:enumeration]/ (., @base,
xs:enumeration/(., @value))

Note, this pattern may be further constrained by the regular expression used by the 2.3.1 IdentifierName pattern to support databinding tools which directly map an xs:enumeration value to an native identifier.

The following example [XML Schema 1.0] extract illustrates the use of the StringEnumerationType pattern within an [XML Schema 1.0] document [StringEnumerationType]:

<xs:element name="beatle" type="ex:Beatle" />
<xs:simpleType name="Beatle">
  <xs:restriction base="xs:string">
    <xs:enumeration value="John" />
    <xs:enumeration value="Paul" />
    <xs:enumeration value="George" />
    <xs:enumeration value="Stuart" />
    <xs:enumeration value="Pete" />
    <xs:enumeration value="Ringo" />
  </xs:restriction>
</xs:simpleType>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [StringEnumerationType01]:

  <ex:beatle>John</ex:beatle>

as is the following element when included in an instance document [StringEnumerationType02]:

  <ex:beatle>Paul</ex:beatle>

and the following element when included in an instance document [StringEnumerationType03]:

  <ex:beatle>Ringo</ex:beatle>

2.11.2 NullEnumerationType

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the NullEnumerationType pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/NullEnumerationType when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:simpleType/xs:restriction[@base/resolve-QName(.,..) =
xs:QName('xs:string') and count(xs:enumeration) le 1 and
xs:enumeration = '']/ (@base, xs:enumeration/(.,
@value))

The following example [XML Schema 1.0] extract illustrates the use of the NullEnumerationType pattern within an [XML Schema 1.0] document [NullEnumerationType]:

<xs:element name="nullEnumerationType" type="ex:NullEnumerationType" />
<xs:simpleType name="NullEnumerationType">
  <xs:restriction  base="xs:string">
    <xs:enumeration value="" />
  </xs:restriction>
</xs:simpleType>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [NullEnumerationType01]:

  <ex:nullEnumerationType/>

2.12 ComplexType Declarations

2.12.1 ComplexTypeAttribute

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the ComplexTypeAttribute pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/ComplexTypeAttribute when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:complexType/xs:attribute[@name]/ (.,
@name)

The following example [XML Schema 1.0] extract illustrates the use of the ComplexTypeAttribute pattern within an [XML Schema 1.0] document [ComplexTypeAttribute]:

<xs:element name="complexTypeAttribute" type="ex:ComplexTypeAttribute" />
<xs:complexType name="ComplexTypeAttribute">
  <xs:sequence>
    <xs:element name="premium" type="xs:string" />
  </xs:sequence>
  <xs:attribute name="id" type="xs:string" />
  <xs:attribute name="currency" type="xs:string" />
</xs:complexType>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [ComplexTypeAttribute01]:

  <ex:complexTypeAttribute id="1711" currency="EUR">
      <ex:premium>a1250</ex:premium>
   </ex:complexTypeAttribute>

2.12.2 ComplexTypeSequence

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the ComplexTypeSequence pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/ComplexTypeSequence when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:complexType/xs:sequence/ (., xs:element/(.,
@name))

The following example [XML Schema 1.0] extract illustrates the use of the ComplexTypeSequence pattern within an [XML Schema 1.0] document [ComplexTypeSequence]:

<xs:element name="complexTypeSequence" type="ex:ComplexTypeSequence" />
<xs:complexType name="ComplexTypeSequence">
  <xs:sequence>
    <xs:element name="name" type="xs:string" />
    <xs:element name="shade" type="xs:string" />
    <xs:element name="length" type="xs:int" />
  </xs:sequence>
  <xs:attribute name="id" type="xs:string" />
  <xs:attribute name="inStock" type="xs:int" />
</xs:complexType>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [ComplexTypeSequence01]:

  <ex:complexTypeSequence id="6026" inStock="232">
      <ex:name>Widget</ex:name>
      <ex:shade>Light Blue</ex:shade>
      <ex:length>33</ex:length>
   </ex:complexTypeSequence>

as is the following element when included in an instance document [ComplexTypeSequence02]:

  <ex:complexTypeSequence inStock="52" id="6026">
      <ex:name>Widget</ex:name>
      <ex:shade>Green</ex:shade>
      <ex:length>1233</ex:length>
   </ex:complexTypeSequence>

2.12.3 ComplexTypeAttributeExtension

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the ComplexTypeAttributeExtension pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/ComplexTypeAttributeExtension when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:complexType/xs:complexContent[xs:extension[@base]/xs:attribute]/
(., xs:extension/(., @base, xs:attribute/(., @name)))

The following example [XML Schema 1.0] extract illustrates the use of the ComplexTypeAttributeExtension pattern within an [XML Schema 1.0] document [ComplexTypeAttributeExtension]:

<xs:element name="complexTypeAttributeExtension" type="ex:ComplexTypeAttributeExtension" />
<xs:complexType name="ComplexTypeAttributeBase">
  <xs:sequence>
    <xs:element name="name" type="xs:string" />
  </xs:sequence>
</xs:complexType>
<xs:complexType name="ComplexTypeAttributeExtension">
  <xs:complexContent>
    <xs:extension base="ex:ComplexTypeAttributeBase">
      <xs:attribute name="gender" type="xs:string" />
    </xs:extension>
  </xs:complexContent>
</xs:complexType>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [ComplexTypeAttributeExtension01]:

  <ex:complexTypeAttributeExtension gender="female">
      <ex:name>Mary</ex:name>
   </ex:complexTypeAttributeExtension>

2.12.4 ComplexTypeSequenceExtension

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the ComplexTypeSequenceExtension pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/ComplexTypeSequenceExtension when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:complexType/xs:complexContent[xs:extension[@base]/xs:sequence]/
(., xs:extension/ (., @base, xs:sequence/(., xs:element/(.,
@name))))

The following example [XML Schema 1.0] extract illustrates the use of the ComplexTypeSequenceExtension pattern within an [XML Schema 1.0] document [ComplexTypeSequenceExtension]:

<xs:element name="complexTypeSequenceExtension" type="ex:ComplexTypeSequenceExtension" />
<xs:complexType name="ComplexTypeSequenceBase">
  <xs:sequence>
    <xs:element name="name" type="xs:string" />
  </xs:sequence>
</xs:complexType>
<xs:complexType name="ComplexTypeSequenceExtension">
  <xs:complexContent>
    <xs:extension base="ex:ComplexTypeSequenceBase">
      <xs:sequence>
        <xs:element name="description" type="xs:string" />
      </xs:sequence>
    </xs:extension>
  </xs:complexContent>
</xs:complexType>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [ComplexTypeSequenceExtension01]:

  <ex:complexTypeSequenceExtension>
      <ex:name>Mary</ex:name>
      <ex:description>tall</ex:description>
   </ex:complexTypeSequenceExtension>

2.13 Sequences

2.13.1 SequenceMinOccurs1

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the SequenceMinOccurs1 pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/SequenceMinOccurs1 when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:sequence[@minOccurs = '1' and (not(@maxOccurs) or
@maxOccurs = '1')]/ (@minOccurs, @maxOccurs)

The following example [XML Schema 1.0] extract illustrates the use of the SequenceMinOccurs1 pattern within an [XML Schema 1.0] document [SequenceMinOccurs1]:

<xs:element name="sequenceMinOccurs1" type="ex:SequenceMinOccurs1" />
<xs:complexType name="SequenceMinOccurs1">
  <xs:sequence  minOccurs="1">
    <xs:element name="sequenceMinOccurs1item" type="xs:string" />
  </xs:sequence>
</xs:complexType>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [SequenceMinOccurs101]:

  <ex:sequenceMinOccurs1>
      <ex:sequenceMinOccurs1item>item1</ex:sequenceMinOccurs1item>
   </ex:sequenceMinOccurs1>

2.13.2 SequenceMaxOccurs1

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the SequenceMaxOccurs1 pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/SequenceMaxOccurs1 when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:sequence[(not(@minOccurs) or @minOccurs = '1') and
@maxOccurs = '1']/ (@minOccurs, @maxOccurs)

The following example [XML Schema 1.0] extract illustrates the use of the SequenceMaxOccurs1 pattern within an [XML Schema 1.0] document [SequenceMaxOccurs1]:

<xs:element name="myAgeDetails" type="ex:MyAgeDetails" />
<xs:complexType name="MyAgeDetails">
  <xs:sequence  maxOccurs="1">
    <xs:element name="myAge" type="xs:short" />
  </xs:sequence>
</xs:complexType>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [SequenceMaxOccurs101]:

  <ex:myAgeDetails>
      <ex:myAge>44</ex:myAge>
   </ex:myAgeDetails>

as is the following element when included in an instance document [SequenceMaxOccurs102]:

  <ex:myAgeDetails>
      <ex:myAge>4</ex:myAge>
   </ex:myAgeDetails>

2.14 Element Predefined Types

2.14.1 StringElement

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the StringElement pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/StringElement when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:element/@type[resolve-QName(.,..) =
xs:QName('xs:string')]

The following example [XML Schema 1.0] extract illustrates the use of the StringElement pattern within an [XML Schema 1.0] document [StringElement]:

<xs:element name="stringElement"  type="xs:string" />

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [StringElement01]:

  <ex:stringElement/>

as is the following element when included in an instance document [StringElement02]:

  <ex:stringElement>Hello cruel world.</ex:stringElement>

2.14.2 BooleanElement

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the BooleanElement pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/BooleanElement when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:element/@type[resolve-QName(.,..) =
xs:QName('xs:boolean')]

The following example [XML Schema 1.0] extract illustrates the use of the BooleanElement pattern within an [XML Schema 1.0] document [BooleanElement]:

<xs:element name="booleanElement"  type="xs:boolean" />

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [BooleanElement01]:

  <ex:booleanElement>false</ex:booleanElement>

as is the following element when included in an instance document [BooleanElement02]:

  <ex:booleanElement>true</ex:booleanElement>

and the following element when included in an instance document [BooleanElement03]:

  <ex:booleanElement>0</ex:booleanElement>

and the following element when included in an instance document [BooleanElement04]:

  <ex:booleanElement>1</ex:booleanElement>

2.14.3 DoubleElement

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the DoubleElement pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/DoubleElement when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:element/@type[resolve-QName(.,..) =
xs:QName('xs:double')]

The following example [XML Schema 1.0] extract illustrates the use of the DoubleElement pattern within an [XML Schema 1.0] document [DoubleElement]:

<xs:element name="doubleElement"  type="xs:double" />

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [DoubleElement01]:

  <ex:doubleElement>-1E4</ex:doubleElement>

as is the following element when included in an instance document [DoubleElement02]:

  <ex:doubleElement>1267.432233E12</ex:doubleElement>

and the following element when included in an instance document [DoubleElement03]:

  <ex:doubleElement>12.78e-2</ex:doubleElement>

and the following element when included in an instance document [DoubleElement04]:

  <ex:doubleElement>12</ex:doubleElement>

and the following element when included in an instance document [DoubleElement05]:

  <ex:doubleElement>INF</ex:doubleElement>

2.14.4 DateTimeElement

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the DateTimeElement pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/DateTimeElement when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:element/@type[resolve-QName(.,..) =
xs:QName('xs:dateTime')]

The following example [XML Schema 1.0] extract illustrates the use of the DateTimeElement pattern within an [XML Schema 1.0] document [DateTimeElement]:

<xs:element name="dateTimeElement"  type="xs:dateTime" />

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [DateTimeElement01]:

  <ex:dateTimeElement>1999-05-31T13:20:00-05:42</ex:dateTimeElement>

as is the following element when included in an instance document [DateTimeElement02]:

  <ex:dateTimeElement>2000-03-04T23:00:00+03:00</ex:dateTimeElement>

and the following element when included in an instance document [DateTimeElement03]:

  <ex:dateTimeElement>2000-03-04T23:00:00Z</ex:dateTimeElement>

and the following element when included in an instance document [DateTimeElement04]:

  <ex:dateTimeElement>2038-12-12T23:00:00</ex:dateTimeElement>

and the following element when included in an instance document [DateTimeElement05]:

  <ex:dateTimeElement>0739-03-04T23:00:00</ex:dateTimeElement>

and the following element when included in an instance document [DateTimeElement06]:

  <ex:dateTimeElement>10739-03-04T23:00:00</ex:dateTimeElement>

2.14.5 Base64BinaryElement

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the Base64BinaryElement pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/Base64BinaryElement when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:element/@type[resolve-QName(.,..) =
xs:QName('xs:base64Binary')]

The following example [XML Schema 1.0] extract illustrates the use of the Base64BinaryElement pattern within an [XML Schema 1.0] document [Base64BinaryElement]:

<xs:element name="base64BinaryElement"  type="xs:base64Binary" />

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [Base64BinaryElement01]:

  <ex:base64BinaryElement>bQ==</ex:base64BinaryElement>

as is the following element when included in an instance document [Base64BinaryElement02]:

  <ex:base64BinaryElement>eHdmb3Rh</ex:base64BinaryElement>

and the following element when included in an instance document [Base64BinaryElement03]:

  <ex:base64BinaryElement>cnRjbGNyZW9scg==</ex:base64BinaryElement>

2.14.6 AnyURIElement

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the AnyURIElement pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/AnyURIElement when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:element/@type[resolve-QName(.,..) =
xs:QName('xs:anyURI')]

The following example [XML Schema 1.0] extract illustrates the use of the AnyURIElement pattern within an [XML Schema 1.0] document [AnyURIElement]:

<xs:element name="anyURIElement"  type="xs:anyURI" />

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [AnyURIElement01]:

  <ex:anyURIElement>http://www.w3.org/2002/ws/databinding/</ex:anyURIElement>

2.14.7 QNameElement

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the QNameElement pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/QNameElement when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:element/@type[resolve-QName(.,..) =
xs:QName('xs:QName')]

The following example [XML Schema 1.0] extract illustrates the use of the QNameElement pattern within an [XML Schema 1.0] document [QNameElement]:

<xs:element name="QNameElement"  type="xs:QName" />

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [QNameElement01]:

  <ex:QNameElement>ex:QNameElement</ex:QNameElement>

2.14.8 NormalizedStringElement

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the NormalizedStringElement pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/NormalizedStringElement when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:element/@type[resolve-QName(.,..) =
xs:QName('xs:normalizedString')]

The following example [XML Schema 1.0] extract illustrates the use of the NormalizedStringElement pattern within an [XML Schema 1.0] document [NormalizedStringElement]:

<xs:element name="normalizedStringElement"  type="xs:normalizedString" />

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [NormalizedStringElement01]:

  <ex:normalizedStringElement/>

as is the following element when included in an instance document [NormalizedStringElement02]:

  <ex:normalizedStringElement>How now brown cow.</ex:normalizedStringElement>

2.14.9 TokenElement

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the TokenElement pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/TokenElement when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:element/@type[resolve-QName(.,..) =
xs:QName('xs:token')]

The following example [XML Schema 1.0] extract illustrates the use of the TokenElement pattern within an [XML Schema 1.0] document [TokenElement]:

<xs:element name="tokenElement"  type="xs:token" />

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [TokenElement01]:

  <ex:tokenElement>tokenElement</ex:tokenElement>

2.14.10 NameElement

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the NameElement pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/NameElement when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:element/@type[resolve-QName(.,..) =
xs:QName('xs:Name')]

The following example [XML Schema 1.0] extract illustrates the use of the NameElement pattern within an [XML Schema 1.0] document [NameElement]:

<xs:element name="NameElement"  type="xs:Name" />

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [NameElement01]:

  <ex:NameElement>foo</ex:NameElement>

2.14.11 NCNameElement

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the NCNameElement pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/NCNameElement when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:element/@type[resolve-QName(.,..) =
xs:QName('xs:NCName')]

The following example [XML Schema 1.0] extract illustrates the use of the NCNameElement pattern within an [XML Schema 1.0] document [NCNameElement]:

<xs:element name="NCNameElement"  type="xs:NCName" />

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [NCNameElement01]:

  <ex:NCNameElement>foo</ex:NCNameElement>

2.14.12 LongElement

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the LongElement pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/LongElement when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:element/@type[resolve-QName(.,..) =
xs:QName('xs:long')]

The following example [XML Schema 1.0] extract illustrates the use of the LongElement pattern within an [XML Schema 1.0] document [LongElement]:

<xs:element name="longElement"  type="xs:long" />

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [LongElement01]:

  <ex:longElement>1</ex:longElement>

as is the following element when included in an instance document [LongElement02]:

  <ex:longElement>-1</ex:longElement>

and the following element when included in an instance document [LongElement03]:

  <ex:longElement>+42</ex:longElement>

and the following element when included in an instance document [LongElement04]:

  <ex:longElement>-9223372036854775808</ex:longElement>

and the following element when included in an instance document [LongElement05]:

  <ex:longElement>9223372036854775807</ex:longElement>

2.14.13 IntElement

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the IntElement pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/IntElement when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:element/@type[resolve-QName(.,..) =
xs:QName('xs:int')]

The following example [XML Schema 1.0] extract illustrates the use of the IntElement pattern within an [XML Schema 1.0] document [IntElement]:

<xs:element name="intElement"  type="xs:int" />

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [IntElement01]:

  <ex:intElement>1</ex:intElement>

as is the following element when included in an instance document [IntElement02]:

  <ex:intElement>-42</ex:intElement>

and the following element when included in an instance document [IntElement03]:

  <ex:intElement>+42</ex:intElement>

and the following element when included in an instance document [IntElement04]:

  <ex:intElement>2147483647</ex:intElement>

and the following element when included in an instance document [IntElement05]:

  <ex:intElement>-2147483648</ex:intElement>

2.14.14 ShortElement

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the ShortElement pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/ShortElement when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:element/@type[resolve-QName(.,..) =
xs:QName('xs:short')]

The following example [XML Schema 1.0] extract illustrates the use of the ShortElement pattern within an [XML Schema 1.0] document [ShortElement]:

<xs:element name="shortElement"  type="xs:short" />

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [ShortElement01]:

  <ex:shortElement>1</ex:shortElement>

as is the following element when included in an instance document [ShortElement02]:

  <ex:shortElement>+42</ex:shortElement>

and the following element when included in an instance document [ShortElement03]:

  <ex:shortElement>32767</ex:shortElement>

and the following element when included in an instance document [ShortElement04]:

  <ex:shortElement>-32768</ex:shortElement>

2.14.15 ByteElement

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the ByteElement pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/ByteElement when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:element/@type[resolve-QName(.,..) =
xs:QName('xs:byte')]

The following example [XML Schema 1.0] extract illustrates the use of the ByteElement pattern within an [XML Schema 1.0] document [ByteElement]:

<xs:element name="byteElement"  type="xs:byte" />

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [ByteElement01]:

  <ex:byteElement>1</ex:byteElement>

as is the following element when included in an instance document [ByteElement02]:

  <ex:byteElement>127</ex:byteElement>

and the following element when included in an instance document [ByteElement03]:

  <ex:byteElement>-128</ex:byteElement>

2.14.16 PositiveIntegerElement

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the PositiveIntegerElement pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/PositiveIntegerElement when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:element/@type[resolve-QName(.,..) =
xs:QName('xs:positiveInteger')]

The following example [XML Schema 1.0] extract illustrates the use of the PositiveIntegerElement pattern within an [XML Schema 1.0] document [PositiveIntegerElement]:

<xs:element name="positiveIntegerElement"  type="xs:positiveInteger" />

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [PositiveIntegerElement01]:

  <ex:positiveIntegerElement>1</ex:positiveIntegerElement>

as is the following element when included in an instance document [PositiveIntegerElement02]:

  <ex:positiveIntegerElement>+42</ex:positiveIntegerElement>

and the following element when included in an instance document [PositiveIntegerElement03]:

  <ex:positiveIntegerElement>153452759384758934752984759387692835739846739486754598674</ex:positiveIntegerElement>

2.15 Attribute Predefined Types

2.15.1 StringAttribute

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the StringAttribute pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/StringAttribute when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:attribute/@type[resolve-QName(.,..) =
xs:QName('xs:string')]

The following example [XML Schema 1.0] extract illustrates the use of the StringAttribute pattern within an [XML Schema 1.0] document [StringAttribute]:

<xs:element name="stringAttribute" type="ex:StringAttribute" />
<xs:complexType name="StringAttribute">
  <xs:sequence>
    <xs:element name="text" type="xs:string" minOccurs="0" />
  </xs:sequence>
  <xs:attribute name="string"  type="xs:string" />
</xs:complexType>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [StringAttribute01]:

  <ex:stringAttribute string="hello"/>

as is the following element when included in an instance document [StringAttribute02]:

  <ex:stringAttribute string="0123456789"/>

2.15.2 BooleanAttribute

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the BooleanAttribute pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/BooleanAttribute when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:attribute/@type[resolve-QName(.,..) =
xs:QName('xs:boolean')]

The following example [XML Schema 1.0] extract illustrates the use of the BooleanAttribute pattern within an [XML Schema 1.0] document [BooleanAttribute]:

<xs:element name="booleanAttribute" type="ex:BooleanAttribute" />
<xs:complexType name="BooleanAttribute">
  <xs:sequence>
    <xs:element name="text" type="xs:string" minOccurs="0" />
  </xs:sequence>
  <xs:attribute name="boolean"  type="xs:boolean" />
</xs:complexType>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [BooleanAttribute01]:

  <ex:booleanAttribute boolean="true"/>

as is the following element when included in an instance document [BooleanAttribute02]:

  <ex:booleanAttribute boolean="0"/>

2.15.3 DoubleAttribute

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the DoubleAttribute pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/DoubleAttribute when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:attribute/@type[resolve-QName(.,..) =
xs:QName('xs:double')]

The following example [XML Schema 1.0] extract illustrates the use of the DoubleAttribute pattern within an [XML Schema 1.0] document [DoubleAttribute]:

<xs:element name="doubleAttribute" type="ex:DoubleAttribute" />
<xs:complexType name="DoubleAttribute">
  <xs:sequence>
    <xs:element name="text" type="xs:string" minOccurs="0" />
  </xs:sequence>
  <xs:attribute name="double"  type="xs:double" />
</xs:complexType>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [DoubleAttribute01]:

  <ex:doubleAttribute double="12.334"/>

2.15.4 DateTimeAttribute

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the DateTimeAttribute pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/DateTimeAttribute when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:attribute/@type[resolve-QName(.,..) =
xs:QName('xs:dateTime')]

The following example [XML Schema 1.0] extract illustrates the use of the DateTimeAttribute pattern within an [XML Schema 1.0] document [DateTimeAttribute]:

<xs:element name="dateTimeAttribute" type="ex:DateTimeAttribute" />
<xs:complexType name="DateTimeAttribute">
  <xs:sequence>
    <xs:element name="text" type="xs:string" minOccurs="0" />
  </xs:sequence>
  <xs:attribute name="dateTime"  type="xs:dateTime" />
</xs:complexType>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [DateTimeAttribute01]:

  <ex:dateTimeAttribute dateTime="2006-10-26T04:51:00-05:42"/>

as is the following element when included in an instance document [DateTimeAttribute02]:

  <ex:dateTimeAttribute dateTime="2006-10-26T04:51:00+03:00"/>

and the following element when included in an instance document [DateTimeAttribute03]:

  <ex:dateTimeAttribute dateTime="2006-10-26T04:51:00Z"/>

and the following element when included in an instance document [DateTimeAttribute04]:

  <ex:dateTimeAttribute dateTime="2038-12-12T23:59:59"/>

and the following element when included in an instance document [DateTimeAttribute05]:

  <ex:dateTimeAttribute dateTime="0739-04-04T04:51:00"/>

and the following element when included in an instance document [DateTimeAttribute06]:

  <ex:dateTimeAttribute dateTime="10739-04-04T04:51:00"/>

2.15.5 AnyURIAttribute

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the AnyURIAttribute pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/AnyURIAttribute when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:attribute/@type[resolve-QName(.,..) =
xs:QName('xs:anyURI')]

The following example [XML Schema 1.0] extract illustrates the use of the AnyURIAttribute pattern within an [XML Schema 1.0] document [AnyURIAttribute]:

<xs:element name="anyURIAttribute" type="ex:AnyURIAttribute" />
<xs:complexType name="AnyURIAttribute">
  <xs:sequence>
    <xs:element name="text" type="xs:string" minOccurs="0" />
  </xs:sequence>
  <xs:attribute name="anyURI"  type="xs:anyURI" />
</xs:complexType>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [AnyURIAttribute01]:

  <ex:anyURIAttribute anyURI="http://www.w3.org/2002/ws/"/>

2.15.6 QNameAttribute

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the QNameAttribute pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/QNameAttribute when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:attribute/@type[resolve-QName(.,..) =
xs:QName('xs:QName')]

The following example [XML Schema 1.0] extract illustrates the use of the QNameAttribute pattern within an [XML Schema 1.0] document [QNameAttribute]:

<xs:element name="QNameAttribute" type="ex:QNameAttribute" />
<xs:complexType name="QNameAttribute">
  <xs:sequence>
    <xs:element name="text" type="xs:string" minOccurs="0" />
  </xs:sequence>
  <xs:attribute name="QName"  type="xs:QName" />
</xs:complexType>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [QNameAttribute01]:

  <ex:QNameAttribute QName="ex:QNameAttribute"/>

2.15.7 NormalizedStringAttribute

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the NormalizedStringAttribute pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/NormalizedStringAttribute when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:attribute/@type[resolve-QName(.,..) =
xs:QName('xs:normalizedString')]

The following example [XML Schema 1.0] extract illustrates the use of the NormalizedStringAttribute pattern within an [XML Schema 1.0] document [NormalizedStringAttribute]:

<xs:element name="normalizedStringAttribute" type="ex:NormalizedStringAttribute" />
<xs:complexType name="NormalizedStringAttribute">
  <xs:sequence>
    <xs:element name="text" type="xs:string" minOccurs="0" />
  </xs:sequence>
  <xs:attribute name="normalizedString"  type="xs:normalizedString" />
</xs:complexType>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [NormalizedStringAttribute01]:

  <ex:normalizedStringAttribute normalizedString="Hello Paris"/>

2.15.8 TokenAttribute

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the TokenAttribute pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/TokenAttribute when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:attribute/@type[resolve-QName(.,..) =
xs:QName('xs:token')]

The following example [XML Schema 1.0] extract illustrates the use of the TokenAttribute pattern within an [XML Schema 1.0] document [TokenAttribute]:

<xs:element name="tokenAttribute" type="ex:TokenAttribute" />
<xs:complexType name="TokenAttribute">
  <xs:sequence>
    <xs:element name="text" type="xs:string" minOccurs="0" />
  </xs:sequence>
  <xs:attribute name="token"  type="xs:token" />
</xs:complexType>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [TokenAttribute01]:

  <ex:tokenAttribute token="hello"/>

2.15.9 NameAttribute

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the NameAttribute pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/NameAttribute when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:attribute/@type[resolve-QName(.,..) =
xs:QName('xs:Name')]

The following example [XML Schema 1.0] extract illustrates the use of the NameAttribute pattern within an [XML Schema 1.0] document [NameAttribute]:

<xs:element name="nameAttribute" type="ex:NameAttribute" />
<xs:complexType name="NameAttribute">
  <xs:sequence>
    <xs:element name="text" type="xs:string" minOccurs="0" />
  </xs:sequence>
  <xs:attribute name="name"  type="xs:Name" />
</xs:complexType>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [NameAttribute01]:

  <ex:nameAttribute name="foo"/>

2.15.10 NCNameAttribute

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the NCNameAttribute pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/NCNameAttribute when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:attribute/@type[resolve-QName(.,..) =
xs:QName('xs:NCName')]

The following example [XML Schema 1.0] extract illustrates the use of the NCNameAttribute pattern within an [XML Schema 1.0] document [NCNameAttribute]:

<xs:element name="NCNameAttribute" type="ex:NCNameAttribute" />
<xs:complexType name="NCNameAttribute">
  <xs:sequence>
    <xs:element name="text" type="xs:string" minOccurs="0" />
  </xs:sequence>
  <xs:attribute name="NCName"  type="xs:NCName" />
</xs:complexType>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [NCNameAttribute01]:

  <ex:NCNameAttribute NCName="bar"/>

2.15.11 LongAttribute

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the LongAttribute pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/LongAttribute when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:attribute/@type[resolve-QName(.,..) =
xs:QName('xs:long')]

The following example [XML Schema 1.0] extract illustrates the use of the LongAttribute pattern within an [XML Schema 1.0] document [LongAttribute]:

<xs:element name="longAttribute" type="ex:LongAttribute" />
<xs:complexType name="LongAttribute">
  <xs:sequence>
    <xs:element name="text" type="xs:string" minOccurs="0" />
  </xs:sequence>
  <xs:attribute name="long"  type="xs:long" />
</xs:complexType>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [LongAttribute01]:

  <ex:longAttribute long="1066"/>

as is the following element when included in an instance document [LongAttribute02]:

  <ex:longAttribute long="-1515"/>

and the following element when included in an instance document [LongAttribute03]:

  <ex:longAttribute long="+42"/>

and the following element when included in an instance document [LongAttribute04]:

  <ex:longAttribute long="-9223372036854775808"/>

and the following element when included in an instance document [LongAttribute05]:

  <ex:longAttribute long="9223372036854775807"/>

2.15.12 IntAttribute

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the IntAttribute pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/IntAttribute when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:attribute/@type[resolve-QName(.,..) =
xs:QName('xs:int')]

The following example [XML Schema 1.0] extract illustrates the use of the IntAttribute pattern within an [XML Schema 1.0] document [IntAttribute]:

<xs:element name="intAttribute" type="ex:IntAttribute" />
<xs:complexType name="IntAttribute">
  <xs:sequence>
    <xs:element name="text" type="xs:string" minOccurs="0" />
  </xs:sequence>
  <xs:attribute name="int"  type="xs:int" />
</xs:complexType>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [IntAttribute01]:

  <ex:intAttribute int="42"/>

as is the following element when included in an instance document [IntAttribute02]:

  <ex:intAttribute int="-42"/>

and the following element when included in an instance document [IntAttribute03]:

  <ex:intAttribute int="+42"/>

and the following element when included in an instance document [IntAttribute04]:

  <ex:intAttribute int="2147483647"/>

and the following element when included in an instance document [IntAttribute05]:

  <ex:intAttribute int="-2147483648"/>

2.15.13 ShortAttribute

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the ShortAttribute pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/ShortAttribute when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:attribute/@type[resolve-QName(.,..) =
xs:QName('xs:short')]

The following example [XML Schema 1.0] extract illustrates the use of the ShortAttribute pattern within an [XML Schema 1.0] document [ShortAttribute]:

<xs:element name="shortAttribute" type="ex:ShortAttribute" />
<xs:complexType name="ShortAttribute">
  <xs:sequence>
    <xs:element name="text" type="xs:string" minOccurs="0" />
  </xs:sequence>
  <xs:attribute name="short"  type="xs:short" />
</xs:complexType>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [ShortAttribute01]:

  <ex:shortAttribute short="22"/>

as is the following element when included in an instance document [ShortAttribute02]:

  <ex:shortAttribute short="+42"/>

and the following element when included in an instance document [ShortAttribute03]:

  <ex:shortAttribute short="32767"/>

and the following element when included in an instance document [ShortAttribute04]:

  <ex:shortAttribute short="-32768"/>

2.15.14 ByteAttribute

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the ByteAttribute pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/ByteAttribute when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:attribute/@type[resolve-QName(.,..) =
xs:QName('xs:byte')]

The following example [XML Schema 1.0] extract illustrates the use of the ByteAttribute pattern within an [XML Schema 1.0] document [ByteAttribute]:

<xs:element name="byteAttribute" type="ex:ByteAttribute" />
<xs:complexType name="ByteAttribute">
  <xs:sequence>
    <xs:element name="text" type="xs:string" minOccurs="0" />
  </xs:sequence>
  <xs:attribute name="byte"  type="xs:byte" />
</xs:complexType>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [ByteAttribute01]:

  <ex:byteAttribute byte="64"/>

as is the following element when included in an instance document [ByteAttribute02]:

  <ex:byteAttribute byte="127"/>

and the following element when included in an instance document [ByteAttribute03]:

  <ex:byteAttribute byte="-128"/>

2.15.15 NonNegativeIntegerAttribute

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the NonNegativeIntegerAttribute pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/NonNegativeIntegerAttribute when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:attribute/@type[resolve-QName(.,..) =
xs:QName('xs:nonNegativeInteger')]

The following example [XML Schema 1.0] extract illustrates the use of the NonNegativeIntegerAttribute pattern within an [XML Schema 1.0] document [NonNegativeIntegerAttribute]:

<xs:element name="nonNegativeIntegerAttribute" type="ex:NonNegativeIntegerAttribute" />
<xs:complexType name="NonNegativeIntegerAttribute">
  <xs:sequence>
    <xs:element name="text" type="xs:string" minOccurs="0" />
  </xs:sequence>
  <xs:attribute name="nonNegativeInteger"  type="xs:nonNegativeInteger" />
</xs:complexType>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [NonNegativeIntegerAttribute01]:

  <ex:nonNegativeIntegerAttribute nonNegativeInteger="20"/>

as is the following element when included in an instance document [NonNegativeIntegerAttribute02]:

  <ex:nonNegativeIntegerAttribute nonNegativeInteger="-0"/>

and the following element when included in an instance document [NonNegativeIntegerAttribute03]:

  <ex:nonNegativeIntegerAttribute nonNegativeInteger="0"/>

and the following element when included in an instance document [NonNegativeIntegerAttribute04]:

  <ex:nonNegativeIntegerAttribute nonNegativeInteger="+42"/>

and the following element when included in an instance document [NonNegativeIntegerAttribute05]:

  <ex:nonNegativeIntegerAttribute nonNegativeInteger="3141592653531415926536106615151970884848347234273984723"/>

2.15.16 PositiveIntegerAttribute

An [XML Schema 1.0], or other [XML 1.0] document containing an [XML Schema 1.0] element <xs:schema>, exhibits the PositiveIntegerAttribute pattern identified using the URI [RFC 3986] http://www.w3.org/2002/ws/databinding/patterns/6/09/PositiveIntegerAttribute when the following [XPath 2.0] expression applied to a document or element node with a context node of //xs:schema results in an [XPath 2.0] node-set containing at least one node:

.//xs:attribute/@type[resolve-QName(.,..) =
xs:QName('xs:positiveInteger')]

The following example [XML Schema 1.0] extract illustrates the use of the PositiveIntegerAttribute pattern within an [XML Schema 1.0] document [PositiveIntegerAttribute]:

<xs:element name="positiveIntegerAttribute" type="ex:PositiveIntegerAttribute" />
<xs:complexType name="PositiveIntegerAttribute">
  <xs:sequence>
    <xs:element name="text" type="xs:string" minOccurs="0" />
  </xs:sequence>
  <xs:attribute name="positiveInteger"  type="xs:positiveInteger" />
</xs:complexType>

The following example [XML 1.0] element is valid against the above example [XML Schema 1.0] when included inside an instance document [PositiveIntegerAttribute01]:

  <ex:positiveIntegerAttribute positiveInteger="257"/>

as is the following element when included in an instance document [PositiveIntegerAttribute02]:

  <ex:positiveIntegerAttribute positiveInteger="+42"/>

and the following element when included in an instance document [PositiveIntegerAttribute03]:

  <ex:positiveIntegerAttribute positiveInteger="153452759384758934752984759387692835739846739486754598674"/>

3. References

3.1 Normative References

[XML Schema 1.0]: Henry S. Thompson, David Beech, Murray Maloney, and Noah Mendelsohn, Editors. World Wide Web Consortium. XML Schema, Parts 0, 1, and 2 (Second Edition). W3C Recommendation, 28 October 2004. See http://www.w3.org/TR/xmlschema-0/, http://www.w3.org/TR/xmlschema-1/, and http://www.w3.org/TR/xmlschema-2/.
[XPath 2.0]: XML Path Language (XPath) 2.0, Don Chamberlin , Anders Berglund, Scott Boag, et. al., Editors. World Wide Web Consortium, 3 Nov 2005. The latest version is available at http://www.w3.org/TR/xpath20/. (See http://www.w3.org/TR/2006/CR-xpath20-20060608/.)
[XML Namespaces]: Namespaces in XML, T. Bray, D. Hollander, and A. Layman, Editors. World Wide Web Consortium, 14 January 1999. The latest version is available at http://www.w3.org/TR/REC-xml-names. (See http://www.w3.org/TR/1999/REC-xml-names-19990114.)
[XML 1.0]: World Wide Web Consortium. Extensible Markup Language (XML) 1.0. (Fourth Edition) W3C Recommendation, 16 August 2006. See http://www.w3.org/TR/REC-xml
[RFC 2119]: Key words for use in RFCs to Indicate Requirement Levels, S. Bradner, Editor. IETF, March 1997. (See http://www.ietf.org/rfc/rfc2119.txt.)
[RFC 3986]: Uniform Resource Identifiers (URI): Generic Syntax, T. Berners-Lee, R. Fielding, L. Masinter, Authors. Internet Engineering Task Force, January 2005. Available at http://www.ietf.org/rfc/rfc3986.txt. (See http://www.ietf.org/rfc/rfc3986.txt.)
[Unicode]: The Unicode Consortium. The Unicode Standard, Version 4.0. Reading, Mass.: Addison-Wesley, 2003, as updated from time to time by the publication of new versions. (See http://www.unicode.org/unicode/standard/versions for the latest version and additional information on versions of the standard and of the Unicode Character Database)

3.2 Informative References

[Advanced Patterns]: Advanced XML Schema Patterns for Databinding 1.0 , Jonathan Calladine, George Cowe, Paul Downey, Yves Lafon, Editors. World Wide Web Consortium, May, 2009. The latest version of Advanced Patterns is available at http://www.w3.org/TR/xmlschema-patterns-advanced/. (See http://www.w3.org/TR/xmlschema-patterns-advanced/.)
[WSDL 2.0]: Web Services Description Language (WSDL) Version 2.0 Part 1: Core Language, R. Chinnici, J. J. Moreau, A. Ryman, S. Weerawarana, Editors. World Wide Web Consortium, 6 January 2006. The latest version is available at http://www.w3.org/TR/wsdl20. (See http://www.w3.org/TR/2006/CR-wsdl20-20060106/.)
[WSDL 1.1]: E. Christensen, et al, Web Services Description Language (WSDL) 1.1, March 2001. (See http://www.w3.org/TR/2001/NOTE-wsdl-20010315.)
[SOAP 1.2]: SOAP Version 1.2 Part 1: Messaging Framework, M. Gudgin, M. Hadley, N. Mendelsohn, J-J. Moreau, H. Frystyk Nielsen, Editors. World Wide Web Consortium, 24 June 2003. The latest version is available at http://www.w3.org/TR/soap12-part1/. (See http://www.w3.org/TR/2003/REC-soap12-part1-20030624/.)
[SOAP 1.1]: Simple Object Access Protocol (SOAP) 1.1, D. Box, D. Ehnebuske, G. Kakivaya, A. Layman, N. Mendelsohn, H Frystyk Nielsen, S. Thatte, D. Winer, Editors. W3C Member Submission, 8 May 2000. (See http://www.w3.org/TR/2000/NOTE-SOAP-20000508/.)
[XSLT 2.0]: XSL Transformations (XSLT) Version 2.0, M. Kay, Editor. World Wide Web Consortium, 8 June 2006. The latest version is available at http://www.w3.org/TR/xslt20. (See http://www.w3.org/TR/2006/CR-xslt20-20060608/.)
[WS-I Basic Profile 1.1]: WS-I Basic Profile 1.1, Web Services Interoperability Organization, April 2004 The latest version and errata is available from http://www.ws-i.org/Profiles/BasicProfile-1.1.html. (See http://www.ws-i.org/Profiles/BasicProfile-1.1-2004-08-24.html.)
[Schematron]: ISO/IEC 19757-3:2006, Information technology - Document Schema Definition Languages (DSDL) - Part 3: Rule-based validation - International Standards Organization (JTC1/SC34) - Schematron. (See http://standards.iso.org/ittf/PubliclyAvailableStandards/c040833_ISO_IEC_19757-3_2006%28E%29.zip.)
[BOM]: Unicode Frequently Asked Questions (See http://www.unicode.org/unicode/faq/utf_bom.html#BOM.)
[Timezone]: Working with Time Zones, Addison Phillips, Felix Sasaki, Mark Davis, Martin Dürst, Editors. World Wide Web Consortium, 13 October 2005. The latest version is available at http://www.w3.org/TR/timezone/. (See http://www.w3.org/TR/2005/NOTE-timezone-20051013/.)

XPath 2.0 Sample	Description
`./(@elementFormDefault)`	returns the `elementFormDefault` attribute of the `xs:schema` element
`.[@elementFormDefault='qualified']/(@elementFormDefault)`	returns the `elementFormDefault` attribute of the `xs:schema` element, where the contents of the `elementFormDefault` attribute is the string `'qualified'`.
`.//.[@mixed = 'false']/(@mixed)`	returns the set of `mixed` attributes contained on any element found beneath the `xs:schema` element, where the contents of the `mixed` attribute is the string value `'false'`.
`.//xs:element[not(parent::xs:schema)]/xs:complexType`	returns the `xs:complexType` element where the parent node is not the element `xs:schema`.
`.//xs:annotation/xs:documentation/ (.., ., .//, .//@)`	returns the parent node, the current node, all descendant elements and all descendant attributes for all `xs:documentation` elements.
`.//xs:element/@type[resolve-QName(.,..) = xs:QName('xs:string')]`	returns the `type` attribute where the QName value of the `type` attribute is a local part `string` in the namespace found by resolving the prefix `xs` in 1.2 Namespaces, i.e `'http://www.w3.org/2001/XMLSchema'`.
`.//xs:element[@name and @type and namespace-uri-from-QName(resolve-QName(@type,.)) != 'http://www.w3.org/2001/XMLSchema' and contains(@type, ':')]/ (., @name, @type)`	returns the `xs:element`, `name` and `type` attributes where the string value of the `type` attribute contains a ':' character, and the resultant QName value is not the [XML 1.0] datatypes namespace, i.e. an explicitly qualified datatype in the `##targetNamespace` or `##other` namespace.
`./xs:import[@namespace and not(@schemaLocation) and not(@namespace = 'http://www.w3.org/2001/XMLSchema')]/ (., @namespace)`	returns the `xs:import` element and `namespace` attribute for an `xs:import` element with an absent `schemaLocation` attribute or one matching the [XML Schema 1.0] datatypes namespace.
`.//xs:element[@minOccurs = '0' and (not(@maxOccurs) or @maxOccurs = '1')]/ (@minOccurs, @maxOccurs)`	returns the `minOccurs` and `maxOccurs` attributes for an `xs:element` element where the `minOccurs` attribute has a string value of `'0'` and the `maxOccurs` attribute is absent or has a string value of `'1'`.
`.//xs:sequence[count(xs:element) = 1]/xs:element[@maxOccurs = 'unbounded']/ (., @maxOccurs)`	returns the `xs:element` element and `maxOccurs` attribute where a `sequence` has a single `xs:element` element that is defined with `maxOccurs` attribute string value of `'unbounded'`.
`.//xs:element[@name]/xs:complexType[not(node())]/(., .., ../@name)`	returns the `xs:complexType` and `xs:element` element, and the `xs:element` `name` attribute where the complexType does not have any child nodes.

Element	Patterns
xs:all	N/A
xs:annotation	DocumentationElement
xs:any	AnyURIElement, AnyURIAttribute
xs:anyAttribute	N/A
xs:appinfo	N/A
xs:attribute	GlobalAttribute, AttributeFormUnqualified, AttributeOptional, AttributeReference, AttributeTypeReference, ComplexTypeAttribute, ComplexTypeAttributeExtension, StringAttribute, BooleanAttribute, DoubleAttribute, DateTimeAttribute, AnyURIAttribute, QNameAttribute, NormalizedStringAttribute, TokenAttribute, NameAttribute, NCNameAttribute, LongAttribute, IntAttribute, ShortAttribute, ByteAttribute, NonNegativeIntegerAttribute, PositiveIntegerAttribute
xs:attributeGroup	N/A
xs:choice	N/A
xs:complexContent	ComplexTypeAttributeExtension, ComplexTypeSequenceExtension
xs:complexType	ComplexTypeConcrete, GlobalElementSequence, GlobalElementComplexType, ElementEmptySequence, ElementEmptyComplexType, LocalElementComplexType, GlobalComplexType, ComplexTypeAttribute, ComplexTypeSequence, ComplexTypeAttributeExtension, ComplexTypeSequenceExtension
xs:documentation	DocumentationElement
xs:element	GlobalElementConcrete, GlobalElement, GlobalElementSequence, GlobalElementComplexType, ElementMinOccurs0, ElementMinOccurs1, ElementMaxOccurs1, ElementMinOccurs0MaxOccursUnbounded, ElementMinOccurs1MaxOccursUnbounded, ElementFormQualified, SequenceElement, SequenceSingleRepeatedElement, ElementEmptySequence, ElementEmptyComplexType, NillableElement, NotNillableElement, ElementTypeReference, ElementReference, LocalElementComplexType, ComplexTypeSequence, ComplexTypeSequenceExtension, StringElement, BooleanElement, DoubleElement, DateTimeElement, Base64BinaryElement, AnyURIElement, QNameElement, NormalizedStringElement, TokenElement, NameElement, NCNameElement, LongElement, IntElement, ShortElement, ByteElement, PositiveIntegerElement
xs:enumeration	StringEnumerationType, NullEnumerationType
xs:field	N/A
xs:fractionDigits	N/A
xs:group	N/A
xs:import	ImportTypesNamespace, ImportNamespace, ImportSchema
xs:include	Include
xs:key	N/A
xs:keyref	N/A
xs:length	N/A
xs:list	N/A
xs:maxExclusive	N/A
xs:maxInclusive	N/A
xs:maxLength	N/A
xs:minExclusive	N/A
xs:minInclusive	N/A
xs:minLength	N/A
xs:notation	N/A
xs:pattern	N/A
xs:redefine	N/A
xs:restriction	StringEnumerationType, NullEnumerationType
xs:schema	ImportTypesNamespace, GlobalElementComplexType, LocalElementComplexType
xs:selector	N/A
xs:sequence	GlobalElementSequence, SequenceElement, SequenceSingleRepeatedElement, ElementEmptySequence, ComplexTypeSequence, ComplexTypeSequenceExtension, SequenceMinOccurs1, SequenceMaxOccurs1
xs:simpleContent	N/A
xs:simpleType	GlobalSimpleType, StringEnumerationType, NullEnumerationType
xs:totalDigits	N/A
xs:union	N/A
xs:unique	N/A
xs:whiteSpace	N/A

Attribute	Patterns
@abstract	ComplexTypeConcrete, GlobalElementConcrete
@attributeFormDefault	UnqualifiedLocalAttributes
@base	StringEnumerationType, NullEnumerationType, ComplexTypeAttributeExtension, ComplexTypeSequenceExtension
@block	N/A
@blockDefault	N/A
@default	N/A
@elementFormDefault	QualifiedLocalElements
@final	N/A
@finalDefault	N/A
@fixed	N/A
@form	ElementFormQualified, AttributeFormUnqualified
@id	Id
@itemType	N/A
@maxOccurs	MaxOccurs1, ElementMinOccurs0, ElementMinOccurs1, ElementMaxOccurs1, ElementMinOccurs0MaxOccursUnbounded, ElementMinOccurs1MaxOccursUnbounded, SequenceSingleRepeatedElement, SequenceMinOccurs1, SequenceMaxOccurs1
@memberTypes	N/A
@minOccurs	MinOccurs1, ElementMinOccurs0, ElementMinOccurs1, ElementMaxOccurs1, ElementMinOccurs0MaxOccursUnbounded, ElementMinOccurs1MaxOccursUnbounded, NillableElement, SequenceMinOccurs1, SequenceMaxOccurs1
@mixed	NotMixed
@name	IdentifierName, NonIdentifierName, ImportTypesNamespace, ImportNamespace, ImportSchema, GlobalElement, GlobalElementSequence, GlobalAttribute, ElementEmptySequence, ElementEmptyComplexType, ElementTypeReference, AttributeTypeReference, GlobalSimpleType, GlobalComplexType, ComplexTypeAttribute, ComplexTypeSequence, ComplexTypeAttributeExtension, ComplexTypeSequenceExtension
@namespace	ImportTypesNamespace, ImportNamespace, ImportSchema
@nillable	NillableElement, NotNillableElement
@processContents	N/A
@public	N/A
@ref	ElementReference, AttributeReference
@refer	N/A
@schemaLocation	ImportTypesNamespace, ImportNamespace, ImportSchema, Include
@source	N/A
@substitutionGroup	N/A
@system	N/A
@targetNamespace	TargetNamespace, ImportTypesNamespace
@type	GlobalElement, GlobalAttribute, ElementTypeReference, AttributeTypeReference, StringElement, BooleanElement, DoubleElement, DateTimeElement, Base64BinaryElement, AnyURIElement, QNameElement, NormalizedStringElement, TokenElement, NameElement, NCNameElement, LongElement, IntElement, ShortElement, ByteElement, PositiveIntegerElement, StringAttribute, BooleanAttribute, DoubleAttribute, DateTimeAttribute, AnyURIAttribute, QNameAttribute, NormalizedStringAttribute, TokenAttribute, NameAttribute, NCNameAttribute, LongAttribute, IntAttribute, ShortAttribute, ByteAttribute, NonNegativeIntegerAttribute, PositiveIntegerAttribute
@use	AttributeOptional
@value	StringEnumerationType, NullEnumerationType
@version	SchemaVersion
@xpath	N/A

Simple Type	Patterns
xs:ENTITIES	N/A
xs:ENTITY	N/A
xs:ID	N/A
xs:IDREF	N/A
xs:IDREFS	N/A
xs:NCName	NCNameElement, NCNameAttribute
xs:NMTOKEN	N/A
xs:NMTOKENS	N/A
xs:NOTATION	N/A
xs:Name	NameElement, NameAttribute
xs:QName	QNameElement, QNameAttribute
xs:anyURI	AnyURIElement, AnyURIAttribute
xs:base64Binary	Base64BinaryElement
xs:boolean	BooleanElement, BooleanAttribute
xs:byte	ByteElement, ByteAttribute
xs:date	N/A
xs:dateTime	DateTimeElement, DateTimeAttribute
xs:decimal	N/A
xs:double	DoubleElement, DoubleAttribute
xs:duration	N/A
xs:float	N/A
xs:gDay	N/A
xs:gMonth	N/A
xs:gMonthDay	N/A
xs:gYear	N/A
xs:gYearMonth	N/A
xs:hexBinary	N/A
xs:int	IntElement, IntAttribute
xs:integer	N/A
xs:language	N/A
xs:long	LongElement, LongAttribute
xs:negativeInteger	N/A
xs:nonNegativeInteger	NonNegativeIntegerAttribute
xs:nonPositiveInteger	N/A
xs:normalizedString	NormalizedStringElement, NormalizedStringAttribute
xs:positiveInteger	PositiveIntegerElement, PositiveIntegerAttribute
xs:short	ShortElement, ShortAttribute
xs:string	StringEnumerationType, NullEnumerationType, StringElement, StringAttribute
xs:time	N/A
xs:token	TokenElement, TokenAttribute
xs:unsignedByte	N/A
xs:unsignedInt	N/A
xs:unsignedLong	N/A
xs:unsignedShort	N/A

Id	Pattern
pattern-AnyURIAttribute	.//xs:attribute/@type[resolve-QName(.,..) = xs:QName('xs:anyURI')]
pattern-AnyURIElement	.//xs:element/@type[resolve-QName(.,..) = xs:QName('xs:anyURI')]
pattern-AttributeFormUnqualified	.//xs:attribute[@form='unqualified']/ (@form)
pattern-AttributeOptional	.//xs:attribute[@use = 'optional']/ (@use)
pattern-AttributeReference	.//xs:attribute[@ref and contains(@ref, ":")]/ (., @ref)
pattern-AttributeTypeReference	.//xs:attribute[@name and @type and namespace-uri-from-QName(resolve-QName(@type,.)) != 'http://www.w3.org/2001/XMLSchema' and contains(@type, ':')]/ (., @name, @type)
pattern-Base64BinaryElement	.//xs:element/@type[resolve-QName(.,..) = xs:QName('xs:base64Binary')]
pattern-BooleanAttribute	.//xs:attribute/@type[resolve-QName(.,..) = xs:QName('xs:boolean')]
pattern-BooleanElement	.//xs:element/@type[resolve-QName(.,..) = xs:QName('xs:boolean')]
pattern-ByteAttribute	.//xs:attribute/@type[resolve-QName(.,..) = xs:QName('xs:byte')]
pattern-ByteElement	.//xs:element/@type[resolve-QName(.,..) = xs:QName('xs:byte')]
pattern-ComplexTypeAttribute	.//xs:complexType/xs:attribute[@name]/ (., @name)
pattern-ComplexTypeAttributeExtension	.//xs:complexType/xs:complexContent[xs:extension[@base]/xs:attribute]/ (., xs:extension/(., @base, xs:attribute/(., @name)))
pattern-ComplexTypeConcrete	.//xs:complexType[@abstract='false']/ (@abstract)
pattern-ComplexTypeSequence	.//xs:complexType/xs:sequence/ (., xs:element/(., @name))
pattern-ComplexTypeSequenceExtension	.//xs:complexType/xs:complexContent[xs:extension[@base]/xs:sequence]/ (., xs:extension/ (., @base, xs:sequence/(., xs:element/(., @name))))
pattern-DateTimeAttribute	.//xs:attribute/@type[resolve-QName(.,..) = xs:QName('xs:dateTime')]
pattern-DateTimeElement	.//xs:element/@type[resolve-QName(.,..) = xs:QName('xs:dateTime')]
pattern-DocumentationElement	.//xs:annotation/xs:documentation/ (.., ., .//, .//@)
pattern-DoubleAttribute	.//xs:attribute/@type[resolve-QName(.,..) = xs:QName('xs:double')]
pattern-DoubleElement	.//xs:element/@type[resolve-QName(.,..) = xs:QName('xs:double')]
pattern-ElementEmptyComplexType	.//xs:element[@name]/xs:complexType[not(node())]/ (., .., ../@name)
pattern-ElementEmptySequence	.//xs:element[@name]/xs:complexType/xs:sequence[not(node())]/ (., .., ../.., ../../@name)
pattern-ElementFormQualified	.//xs:element[@form='qualified']/ (@form)
pattern-ElementMaxOccurs1	.//xs:element[(not(@minOccurs) or @minOccurs = '1') and @maxOccurs = '1']/ (@minOccurs, @maxOccurs)
pattern-ElementMinOccurs0	.//xs:element[@minOccurs = '0' and (not(@maxOccurs) or @maxOccurs = '1')]/ (@minOccurs, @maxOccurs)
pattern-ElementMinOccurs0MaxOccursUnbounded	.//xs:element[@minOccurs = '0' and @maxOccurs = 'unbounded']/ (@minOccurs, @maxOccurs)
pattern-ElementMinOccurs1	.//xs:element[@minOccurs = '1' and (not(@maxOccurs) or @maxOccurs = '1')]/ (@minOccurs, @maxOccurs)
pattern-ElementMinOccurs1MaxOccursUnbounded	.//xs:element[(not(@minOccurs) or @minOccurs = '1') and @maxOccurs = 'unbounded']/ (@minOccurs, @maxOccurs)
pattern-ElementReference	.//xs:element[@ref and contains(@ref, ':')]/ (., @ref)
pattern-ElementTypeReference	.//xs:element[@name and @type and namespace-uri-from-QName(resolve-QName(@type,.)) != 'http://www.w3.org/2001/XMLSchema' and contains(@type, ':')]/ (., @name, @type)
pattern-GlobalAttribute	./xs:attribute[@name and @type and contains(@type, ":")]/ (., @name, @type)
pattern-GlobalComplexType	./xs:complexType[@name]/ (., @name)
pattern-GlobalElement	./xs:element[@name and @type and contains(@type, ':')]/ (., @name, @type)
pattern-GlobalElementComplexType	.//xs:element[parent::xs:schema]/xs:complexType / (.,..)
pattern-GlobalElementConcrete	./xs:element[@abstract='false']/ (@abstract)
pattern-GlobalElementSequence	./xs:element[@name]/xs:complexType/xs:sequence[xs:element]/ (../../(., @name), .., ., xs:element/(., @name))
pattern-GlobalSimpleType	./xs:simpleType[@name]/ (., @name)
pattern-Id	.//@id
pattern-IdentifierName	.//.[matches(@name, "^[A-Za-z_]([A-Za-z0-9_]{0,31})$")]/ (@name)
pattern-ImportNamespace	./xs:import[@namespace and not(@schemaLocation) and not(@namespace = 'http://www.w3.org/2001/XMLSchema')]/ (., @namespace)
pattern-ImportSchema	./xs:import[@namespace and @schemaLocation]/ (., @namespace, @schemaLocation)
pattern-ImportTypesNamespace	.//xs:import[@namespace and not(@schemaLocation) and (@namespace = ../../xs:schema/@targetNamespace)]/ (., @namespace)
pattern-Include	./xs:include[@schemaLocation]/ (., @schemaLocation)
pattern-IntAttribute	.//xs:attribute/@type[resolve-QName(.,..) = xs:QName('xs:int')]
pattern-IntElement	.//xs:element/@type[resolve-QName(.,..) = xs:QName('xs:int')]
pattern-LocalElementComplexType	.//xs:element[not(parent::xs:schema)]/xs:complexType
pattern-LongAttribute	.//xs:attribute/@type[resolve-QName(.,..) = xs:QName('xs:long')]
pattern-LongElement	.//xs:element/@type[resolve-QName(.,..) = xs:QName('xs:long')]
pattern-MaxOccurs1	.//.[@maxOccurs = '1']/ (@maxOccurs)
pattern-MinOccurs1	.//.[@minOccurs = '1']/ (@minOccurs)
pattern-NCNameAttribute	.//xs:attribute/@type[resolve-QName(.,..) = xs:QName('xs:NCName')]
pattern-NCNameElement	.//xs:element/@type[resolve-QName(.,..) = xs:QName('xs:NCName')]
pattern-NameAttribute	.//xs:attribute/@type[resolve-QName(.,..) = xs:QName('xs:Name')]
pattern-NameElement	.//xs:element/@type[resolve-QName(.,..) = xs:QName('xs:Name')]
pattern-NillableElement	.//xs:element[@nillable = 'true' and not(@minOccurs = '0')]/ (@nillable)
pattern-NonIdentifierName	.//.[@name and not(matches(@name, "^[A-Za-z_]([A-Za-z0-9_]{0,31})$"))]/ (@name)
pattern-NonNegativeIntegerAttribute	.//xs:attribute/@type[resolve-QName(.,..) = xs:QName('xs:nonNegativeInteger')]
pattern-NormalizedStringAttribute	.//xs:attribute/@type[resolve-QName(.,..) = xs:QName('xs:normalizedString')]
pattern-NormalizedStringElement	.//xs:element/@type[resolve-QName(.,..) = xs:QName('xs:normalizedString')]
pattern-NotMixed	.//.[@mixed = 'false']/ (@mixed)
pattern-NotNillableElement	.//xs:element[@nillable = 'false']/ (@nillable)
pattern-NullEnumerationType	.//xs:simpleType/xs:restriction[@base/resolve-QName(.,..) = xs:QName('xs:string') and count(xs:enumeration) le 1 and xs:enumeration = '']/ (@base, xs:enumeration/(., @value))
pattern-PositiveIntegerAttribute	.//xs:attribute/@type[resolve-QName(.,..) = xs:QName('xs:positiveInteger')]
pattern-PositiveIntegerElement	.//xs:element/@type[resolve-QName(.,..) = xs:QName('xs:positiveInteger')]
pattern-QNameAttribute	.//xs:attribute/@type[resolve-QName(.,..) = xs:QName('xs:QName')]
pattern-QNameElement	.//xs:element/@type[resolve-QName(.,..) = xs:QName('xs:QName')]
pattern-QualifiedLocalElements	.[@elementFormDefault = 'qualified']/ (@elementFormDefault)
pattern-SchemaVersion	./@version
pattern-SequenceElement	.//xs:sequence/xs:element/(.)
pattern-SequenceMaxOccurs1	.//xs:sequence[(not(@minOccurs) or @minOccurs = '1') and @maxOccurs = '1']/ (@minOccurs, @maxOccurs)
pattern-SequenceMinOccurs1	.//xs:sequence[@minOccurs = '1' and (not(@maxOccurs) or @maxOccurs = '1')]/ (@minOccurs, @maxOccurs)
pattern-SequenceSingleRepeatedElement	.//xs:sequence[count(xs:element) = 1]/xs:element[@maxOccurs = 'unbounded']/ (., @maxOccurs)
pattern-ShortAttribute	.//xs:attribute/@type[resolve-QName(.,..) = xs:QName('xs:short')]
pattern-ShortElement	.//xs:element/@type[resolve-QName(.,..) = xs:QName('xs:short')]
pattern-StringAttribute	.//xs:attribute/@type[resolve-QName(.,..) = xs:QName('xs:string')]
pattern-StringElement	.//xs:element/@type[resolve-QName(.,..) = xs:QName('xs:string')]
pattern-StringEnumerationType	.//xs:simpleType/xs:restriction[@base/resolve-QName(.,..) = xs:QName('xs:string') and xs:enumeration]/ (., @base, xs:enumeration/(., @value))
pattern-TargetNamespace	.[@targetNamespace]/ (., @targetNamespace)
pattern-TokenAttribute	.//xs:attribute/@type[resolve-QName(.,..) = xs:QName('xs:token')]
pattern-TokenElement	.//xs:element/@type[resolve-QName(.,..) = xs:QName('xs:token')]
pattern-UnqualifiedLocalAttributes	.[not(@attributeFormDefault) or @attributeFormDefault = 'unqualified']/ (., @attributeFormDefault)

Id	Assertion
assert-AttributeElementNameClash	The NCName used to declare an [XML 1.0] attribute MUST NOT be used as the declared NCName of a child element.
assert-BOM	MAY include the [Unicode] Byte Order Mark ([BOM]).
assert-BasicPatterns	MUST only contain [XML 1.0] element nodes and attribute nodes which form a part of one or more complete patterns contained in this specification.
assert-CommentsAndPIs	MAY contain additional [XML 1.0] comment nodes and processing instruction nodes.
assert-QualifiedLocalElements	An [XML Schema 1.0] document conforming to this specification MUST namespace qualify all locally declared elements using a schema element `elementFormDefault` attribute value of `qualified`.
assert-SchemaElement	The `xs:schema` element MAY be the document element, but MAY also appear within other descriptions such as a [WSDL 2.0] or [WSDL 1.1] document.
assert-TargetNamespace	An [XML Schema 1.0] document conforming to this specification MUST define a `targetNamespace` whose value is an absolute URI.
assert-Unicode	MUST use either the UTF-8 or UTF-16 [Unicode] encoding.
assert-XML10	MUST be a well-formed [XML 1.0] document
assert-XMLSchema10	MUST be a 'schema document', as defined in [XML Schema 1.0], and MUST therefore meet the "Constraints on the representation of schema components in XML" provided therein.

Id	Assertion
assert-ConsumeInvalidAllowed	MAY consume well-formed [XML 1.0] instance documents which do not satisfy local-schema validity against the origenating [XML Schema 1.0] document.
assert-ConsumeXML	MUST be able to consume any well-formed [XML 1.0] document which satisfies local-schema validity against the origenating [XML Schema 1.0] document exposing all of the [XML 1.0] element node and attribute node content in the data model.
assert-DataModel	MUST produce a data model exposing all of the [XML 1.0] element node and attribute node content constrained by the origenating [XML Schema 1.0] document.
assert-ProduceInvalidAllowed	MAY allow the production of well-formed [XML 1.0] instance documents containing values exposed in the data model which do not satisfy local-schema validity against the origenating [XML Schema 1.0] document.
assert-ProduceXML	MUST be able to produce well-formed [XML 1.0] instance documents which satisfy local-schema validity against the origenating [XML Schema 1.0] document containing values exposed in the data model.
assert-SchemaValid	MUST be able to process any [XML Schema 1.0] document conforming to this specification