XML Schema Tutorial

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Schema Tutorial - index of highlighted elements and attributes

XML Schema elements
XML Schema attributes
Relax NG elements
Relax NG attributes
Schematron elements
Schematron attributes

XML Schema elements

xsd:all	Element which contains elements only (order does not matter) Element can contain a mixture of elements "Sequence" from "all"
xsd:annotation	Annotating your schema Extending schema
xsd:any	Just one element from any namespace Arbitrary number of elements from any namespace Exact number of elements from any namespace Elements from namespace other than target namespace (which is not null) Elements from namespace other than target namespace (which is null) Element from any The wildcard "xsd:any" and inclusions
xsd:anyAttribute	Attribute from any namespace Attributes from namespace other then target namespace (which is null) Attributes from namespace other than target namespace (which is not null) Attributes from some particular namespace The wildcard "xsd:anyAttribute" and inclusions
xsd:appinfo	Extending schema
xsd:attributeGroup	Defining a group of attributes
xsd:choice	Element which contains one of two elements Element which contains two "patterns" (sequences), in any order Extension of a choice Restriction of a choice "Sequence" from "choice"
xsd:complexContent	Empty element
xsd:complexType	Empty element Element contains text only and one attribute
xsd:documentation	Annotating your schema
xsd:element	Element from any
xsd:enumeration	Element can contain a string from an enumerated set
xsd:extension	Element contains text only and one attribute XML Schema - no more extensions allowed Attribute block set to "extension" XML Schema - blockDefault attribute Combining block and blockDefault attributes Attribute block and xsi:type Extension of a sequence Extension of a choice
xsd:field	Uniqueness Uniqueness - comparison of numbers Key and nillable Unique and nillable Keyref
xsd:fractionDigits	Limiting the number of decimal places Limiting both the number of decimal places and total places
xsd:include	Target namespaces are the same (non-null) Target namespaces are the same (null) Including document has non-null target namespaces, included null target namespace The wildcard "xsd:any" and inclusions The wildcard "xsd:anyAttribute" and inclusions
xsd:key	Key and nillable
xsd:keyref	Keyref
xsd:length	Attribute contains a list of values Element contains a list of values Limiting string length
xsd:list	Attribute contains a list of values Element contains a list of values
xsd:maxExclusive	Restrictions
xsd:maxInclusive	Multiple restrictions
xsd:minExclusive	Definition of a custom simpleType - temperature must be greater than -273.15 Limiting the number of decimal places
xsd:minInclusive	Multiple restrictions
xsd:redefine	Redefine element
xsd:restriction	Empty element Restrictions Attribute contains a list of values Element contains a list of values Definition of a custom simpleType - temperature must be greater than -273.15 Limiting string length Limiting the number of decimal places Limiting both the number of decimal places and total places String must contain e-mail address Element contains date Element represents time duration XML Schema - no more restrictions of a simpleType allowed XML Schema - finalDefault attribute Attribute block set to "restriction" XML Schema - blockDefault attribute Combining block and blockDefault attributes Restriction of a sequence Restriction of a choice Error in restriction - non-matching types Error in restriction - maxOccurs Error in restriction - namespaces in wildcards "Sequence" from "all" "Sequence" from "choice" Element from any
xsd:selector	Uniqueness Uniqueness - comparison of numbers Key and nillable Unique and nillable Keyref
xsd:sequence	Element which contains elements only (order is important) Element which contains mixture of two elements (can appear more times) Extension of a sequence Restriction of a sequence "Sequence" from "all" "Sequence" from "choice"
xsd:simpleContent	Element contains text only and one attribute
xsd:totalDigits	Limiting both the number of decimal places and total places
xsd:union	Multiple restrictions Element is either a fixed string or an integer
xsd:unique	Uniqueness Uniqueness - comparison of numbers Unique and nillable

XML Schema attributes

abstract	Abstract element, substitutionGroup Attribute block Abstract type
attributeFormDefault	Target namespace is not null, attributeFormDefault is qualified Target namespace is not null, attributeFormDefault is unqualified Target namespace is null
base	Restrictions Multiple restrictions Element is either a fixed string or an integer Attribute contains a list of values Element contains a list of values xsi:type XML Schema - no more restrictions of a simpleType allowed XML Schema - no more extensions allowed XML Schema - finalDefault attribute Redefine element Abstract element, substitutionGroup Attribute block set to "restriction" Attribute block set to "extension" XML Schema - blockDefault attribute Combining block and blockDefault attributes Attribute block and xsi:type Abstract type Extension of a sequence Extension of a choice Restriction of a sequence Restriction of a choice Error in restriction - non-matching types Error in restriction - maxOccurs Error in restriction - namespaces in wildcards "Sequence" from "all" "Sequence" from "choice" Element from any
block	Attribute block Attribute block set to "restriction" Attribute block set to "extension" Combining block and blockDefault attributes Attribute block and xsi:type
blockDefault	XML Schema - blockDefault attribute Combining block and blockDefault attributes
elementFormDefault	Top-level elements, null namespace Top-level elements, non-null namespace elementFormDefault unqualified for not-top-level elements, namespace non-null elementFormDefault qualified for not-top-level elements, namespace non-null
final	XML Schema - no more restrictions of a simpleType allowed XML Schema - no more extensions allowed
finalDefault	XML Schema - finalDefault attribute
form	Target namespaces are the same (non-null) Including document has non-null target namespaces, included null target namespace
itemType	Attribute contains a list of values
maxOccurs	Element which contains mixture of two elements (can appear more times) Element which contains two "patterns" (sequences), in any order Just one element from any namespace Arbitrary number of elements from any namespace Exact number of elements from any namespace Elements from namespace other than target namespace (which is not null) Elements from namespace other than target namespace (which is null) Restriction of a sequence Restriction of a choice Error in restriction - non-matching types Error in restriction - maxOccurs "Sequence" from "choice" Element from any
minOccurs	Element which contains mixture of two elements (can appear more times) Element which contains two "patterns" (sequences), in any order Just one element from any namespace Arbitrary number of elements from any namespace Exact number of elements from any namespace Elements from namespace other than target namespace (which is not null) Elements from namespace other than target namespace (which is null)
mixed	Element with mixed content (text and only one element)
name	The document root element is from null namespace The namespace of the document root element does not match the targetNamespace Top-level elements, null namespace Top-level elements, non-null namespace elementFormDefault unqualified for not-top-level elements, namespace non-null elementFormDefault qualified for not-top-level elements, namespace non-null Empty element Element with mixed content (text and only one element) Element which contains elements only (order does not matter) Element which contains elements only (order is important) Element which contains mixture of two elements (can appear more times) Element which contains one of two elements Element which contains two "patterns" (sequences), in any order Element contains text only and one attribute Element can contain a mixture of elements Defining a group of attributes Attribute contains a list of values Element contains a list of values Definition of a custom simpleType - temperature must be greater than -273.15 Limiting string length Limiting the number of decimal places Limiting both the number of decimal places and total places String must contain e-mail address Element contains date Element represents time duration nillable, xsi:nil xsi:type definition of a simpleType, target namespace is null definition of a simpleType, target namespace is not null Element and type have the same name Error - simpleType and complexType have the same name Key Uniqueness - comparison of numbers Key and nillable Unique and nillable Keyref XML Schema - no more restrictions of a simpleType allowed XML Schema - no more extensions allowed XML Schema - finalDefault attribute Importing schema and processContents "strict" Importing schema and processContents "lax" Importing schema and processContents "skip" Redefine element Abstract element, substitutionGroup Attribute block Attribute block set to "restriction" Attribute block set to "extension" XML Schema - blockDefault attribute Combining block and blockDefault attributes Attribute block and xsi:type Abstract type Target namespace is not null, attributeFormDefault is qualified Target namespace is not null, attributeFormDefault is unqualified Target namespace is null Extension of a sequence Extension of a choice Restriction of a sequence Restriction of a choice Error in restriction - non-matching types Error in restriction - maxOccurs Error in restriction - namespaces in wildcards "Sequence" from "all" "Sequence" from "choice" Element from any Target namespaces are the same (non-null) Target namespaces are the same (null) Including document has non-null target namespaces, included null target namespace The wildcard "xsd:any" and inclusions The wildcard "xsd:anyAttribute" and inclusions
namespace	Attribute from any namespace Attributes from namespace other then target namespace (which is null) Attributes from namespace other than target namespace (which is not null) Attributes from some particular namespace Just one element from any namespace Arbitrary number of elements from any namespace Exact number of elements from any namespace Elements from namespace other than target namespace (which is not null) Elements from namespace other than target namespace (which is null) Importing schema and processContents "strict" Importing schema and processContents "lax" Importing schema and processContents "skip" Error in restriction - namespaces in wildcards The wildcard "xsd:any" and inclusions The wildcard "xsd:anyAttribute" and inclusions
nillable	nillable, xsi:nil Key and nillable Unique and nillable
processContents	Importing schema and processContents "strict" Importing schema and processContents "lax" Importing schema and processContents "skip"
ref	Element which contains two "patterns" (sequences), in any order Defining a group of attributes Abstract element, substitutionGroup Attribute block Attribute block set to "restriction" Attribute block set to "extension" XML Schema - blockDefault attribute Combining block and blockDefault attributes
refer	Keyref
substitutionGroup	Abstract element, substitutionGroup Attribute block Attribute block set to "restriction" Attribute block set to "extension" XML Schema - blockDefault attribute Combining block and blockDefault attributes
targetNamespace	The document root element is from some particular namespace The namespace of the document root element does not match the targetNamespace Top-level elements, non-null namespace elementFormDefault unqualified for not-top-level elements, namespace non-null elementFormDefault qualified for not-top-level elements, namespace non-null Attributes from namespace other than target namespace (which is not null) Elements from namespace other than target namespace (which is not null) definition of a simpleType, target namespace is not null Importing schema and processContents "strict" Importing schema and processContents "lax" Importing schema and processContents "skip" Redefine element Target namespace is not null, attributeFormDefault is qualified Target namespace is not null, attributeFormDefault is unqualified Target namespaces are the same (non-null) Including document has non-null target namespaces, included null target namespace The wildcard "xsd:any" and inclusions The wildcard "xsd:anyAttribute" and inclusions
type	Element with text only Element with mixed content (text and only one element) Accessing data-types Definition of a custom simpleType - temperature must be greater than -273.15 Limiting string length Limiting the number of decimal places Limiting both the number of decimal places and total places String must contain e-mail address Element contains date Element represents time duration The number must not be in scientific notation xsi:type definition of a simpleType, target namespace is null definition of a simpleType, target namespace is not null Element and type have the same name Error - simpleType and complexType have the same name Uniqueness - comparison of numbers Importing schema and processContents "strict" Importing schema and processContents "lax" Importing schema and processContents "skip" Redefine element Abstract element, substitutionGroup Attribute block Attribute block set to "restriction" Attribute block set to "extension" XML Schema - blockDefault attribute Combining block and blockDefault attributes Attribute block and xsi:type Abstract type Extension of a sequence Extension of a choice Restriction of a sequence Restriction of a choice Error in restriction - non-matching types Error in restriction - maxOccurs Error in restriction - namespaces in wildcards "Sequence" from "all" "Sequence" from "choice" Element from any Target namespaces are the same (non-null) Target namespaces are the same (null) Including document has non-null target namespaces, included null target namespace The wildcard "xsd:any" and inclusions The wildcard "xsd:anyAttribute" and inclusions
value	Element is either a fixed string or an integer Element can contain a string from an enumerated set String must contain e-mail address Abstract element, substitutionGroup
xpath	Uniqueness Key Uniqueness - comparison of numbers Key and nillable Unique and nillable Keyref

Relax NG elements

anyName	Attribute from any namespace Attributes from namespace other then target namespace (which is null) Attributes from namespace other than target namespace (which is not null) Attributes must not be from some particular namespaces Just one element from any namespace Arbitrary number of elements from any namespace Exact number of elements from any namespace Elements from namespace other than target namespace (which is not null) Elements from namespace other than target namespace (which is null)
attribute	Element can have [x,y] either as attributes or as elements
choice	Element which contains one of two elements Element which contains two "patterns" (sequences), in any order Multiple restrictions Element is either a fixed string or an integer Element can contain a string from an enumerated set Element can have [x,y] either as attributes or as elements Extension of a choice Error in restriction - namespaces in wildcards
define	Defining a group of attributes Extension of a sequence Extension of a choice Error in restriction - namespaces in wildcards Target namespaces are the same (non-null)
element	Element can have [x,y] either as attributes or as elements
empty	Empty element
except	Attributes from namespace other then target namespace (which is null) Attributes from namespace other than target namespace (which is not null) Attributes must not be from some particular namespaces Elements from namespace other than target namespace (which is not null) Elements from namespace other than target namespace (which is null)
externalRef	Including in Relax NG - externalRef element, ns attribute
include	Including in Relax NG - include element, ns attribute
interleave	Element which contains elements only (order does not matter) Element which contains mixture of two elements (can appear more times) Element can contain a mixture of elements
list	Attribute contains a list of values Element contains a list of values
name	Document root element can be from a set of namespaces The document root element is from null namespace The document root element is from some particular namespace elementFormDefault unqualified for not-top-level elements, namespace non-null elementFormDefault qualified for not-top-level elements, namespace non-null Empty element Element with mixed content (text and only one element) Element which contains elements only (order does not matter) Element which contains elements only (order is important) Element which contains mixture of two elements (can appear more times) Element which contains one of two elements Element which contains two "patterns" (sequences), in any order Element contains text only and one attribute Target namespace is not null, attributeFormDefault is qualified
nsName	Attributes from namespace other then target namespace (which is null) Attributes from namespace other than target namespace (which is not null) Attributes from some particular namespace Attributes must not be from some particular namespaces Elements from namespace other than target namespace (which is not null) Elements from namespace other than target namespace (which is null)
optional	Exact number of elements from any namespace
param	Restrictions Multiple restrictions String must contain e-mail address
ref	Defining a group of attributes Extension of a sequence Extension of a choice Error in restriction - namespaces in wildcards Target namespaces are the same (non-null)
text	Element with text only Element with mixed content (text and only one element) Element contains text only and one attribute
value	Element is either a fixed string or an integer Element can contain a string from an enumerated set Abstract element, substitutionGroup
zeroOrMore	Element which contains mixture of two elements (can appear more times) Attribute from any namespace Attributes from namespace other then target namespace (which is null) Arbitrary number of elements from any namespace

Relax NG attributes

combine	Error - simpleType and complexType have the same name
datatypeLibrary	Accessing data-types
name	Element with mixed content (text and only one element) Element which contains elements only (order does not matter) Element which contains elements only (order is important) Element which contains mixture of two elements (can appear more times) Element which contains one of two elements Element which contains two "patterns" (sequences), in any order Restrictions Multiple restrictions Element can contain a mixture of elements Defining a group of attributes Element can have [x,y] either as attributes or as elements Attribute contains a list of values Definition of a custom simpleType - temperature must be greater than -273.15 Limiting string length Limiting the number of decimal places Limiting both the number of decimal places and total places String must contain e-mail address Element contains date Element represents time duration definition of a simpleType, target namespace is null definition of a simpleType, target namespace is not null Element and type have the same name Error - simpleType and complexType have the same name Uniqueness Key Uniqueness - comparison of numbers Keyref Abstract element, substitutionGroup Abstract type Target namespace is not null, attributeFormDefault is unqualified Target namespace is null Extension of a sequence Extension of a choice Error in restriction - namespaces in wildcards Including in Relax NG - externalRef element, ns attribute Including in Relax NG - include element, ns attribute
ns	Document root element can be from a set of namespaces The document root element is from null namespace The document root element is from some particular namespace elementFormDefault unqualified for not-top-level elements, namespace non-null elementFormDefault qualified for not-top-level elements, namespace non-null Attributes from namespace other than target namespace (which is not null) Attributes from some particular namespace Attributes must not be from some particular namespaces Elements from namespace other than target namespace (which is not null) Elements from namespace other than target namespace (which is null) Target namespace is not null, attributeFormDefault is qualified Target namespace is not null, attributeFormDefault is unqualified Error in restriction - namespaces in wildcards Target namespaces are the same (non-null) Including in Relax NG - externalRef element, ns attribute Including in Relax NG - include element, ns attribute
type	Accessing data-types Restrictions Multiple restrictions Element is either a fixed string or an integer Attribute contains a list of values Element contains a list of values The number must not be in scientific notation

Schematron elements

assert	Uniqueness Key Uniqueness - comparison of numbers Keyref Extending schema
pattern	Extending schema
rule	Extending schema

Schematron attributes

context

Uniqueness
Key
Uniqueness - comparison of numbers
Keyref