Name

xs:schema — Document element of a W3C XML Schema.

Synopsis

<xs:schema
           attributeFormDefault = ( “qualified” | “unqualified” ) : “unqualified”
           blockDefault         = ( “#all” | list of ( “extension” | “restriction” |
                                    “substitution” ) ) : “”
           elementFormDefault   = ( “qualified” | “unqualified” ) : “unqualified”
           finalDefault         = ( “#all” | list of ( “extension” | “restriction” )
                                    ) : “”
           id                   = xs:ID
           targetNamespace      = xs:anyURI
           version              = xs:token
           xml:lang             = xml:lang
           {any attributes with non-schema namespace}
           >
           Content: ((xs:include | xs:import | xs:redefine | xs:annotation)*, (,
                      ( | (xs:simpleType | xs:complexType | xs:group |
                      xs:attributeGroup) | xs:element | xs:attribute |
                      xs:notation), xs:annotation*)*)
</xs:schema>

May be included in: (must be root element)

Description

xs:schema is the document (root) element of any W3C XML Schema. It’s both a container for all the declarations and definitions of the schema and a place holder for a number of default values expressed as attributes. The compositors embedded directly under xs:schema have a special role, since they are considered global definitions that can be referenced elsewhere.

Restrictions

A xs:schema element (and therefore a schema) is associated with a maximum of one namespace and must import the definitions of compositors for other namespaces if needed.

Example

<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
  <xs:element name="name" type="xs:string"/>
  <xs:element name="qualification" type="xs:string"/>
  <xs:element name="born" type="xs:date"/>
  <xs:element name="dead" type="xs:date"/>
  <xs:element name="isbn" type="xs:NMTOKEN"/>
  <xs:attribute name="id" type="xs:ID"/>
  <xs:attribute name="available" type="xs:boolean"/>
  <xs:attribute name="lang" type="xs:language"/>
  .../...
</xs:schema>

Attributes

attributeFormDefault

Default value for the form attributes of xs:attribute, determining whether attributes will be namespace-qualified by default.

blockDefault

Default value of the block attribute of xs:element and xs:complexType.

elementFormDefault

Default value for the form attributes of xs:element, determining whether attributes will be namespace-qualified by default

finalDefault

Default value of the final attribute of xs:element and xs:complexType.

id

W3C XML Schema’s element ID.

targetNamespace

Namespace attached to this schema. All the qualified elements and attributes defined in this schema will belong to this namespace. This namespace will also be attached to all the global components.

version

Version of the schema (for user convenience).

xml

Language of the schema.