XML-.
XML- ( ).
XML- :
1. , ;
2. , , XML-.
XML-. .
, Document Type Definitions (DTD), XML Schema, RELAX NG, XML Data-Reduced . DTD XML Schema.
. , .
XML Schema Definition (XSD).
XML Schema Definition (XSD) XML , DTD. , , .
XML Schema XML-, , , , , . , XML Schema XML- , ( PSV1).
XML Schema . , . : , , , (, ). , , . .
XML Schema, XSD, .
XML Schema , xsd. XML schemaLocation . schemaLocation, . XML.
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XML Schema.
<schema>. <schema> . 2.10.
<schema> :
1. <element> XML-;
2. <attribute> XML-;
3. <group> , ;
4. <attributeGroup> ;
5. <annotation> XML- ;
6. <import> ( );
7. <include> ( );
8. <notation> , -XML- XML-;
9. <redefine> , , ;
10. <simpleType> . ;
11. <complexType> , .
XML Schema :
1. , . String, Float, Double, Time, Date, Decimal, AnyURI;
2. , . Integer, Long, Byte, Short, nonPositivelnteger, nonNegativelnteger, ID .;
3. , . -.
, ( ) , XML Schema .
fixed default / .
, <sympleType>, .
:
1. (restriction) ;
2. (union) ;
3. (list) .
, ( String ):
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, ( ):
( shoeSizes , 10.5, 9, 8 11):
XML Schema (. . 2.8):
1. ( );
2. ( );
3. ( );
4. ;
5. ;
6. .
. 2.11.
, , ( ).
, - , .
, ( ).
, string: 1 2.
XML-, , , <complexType>.
( , . . 2.11), ( minOccurs maxOccurs).
minOccurs , . minOccurs, , () .
maxOccurs , . . maxOccurs unbounded ( ).
, , , , . <sequence> (. 2.12), maxOccurs .
choice , , , .
