# XML Schema Documentation

### Complex Type: PositionId

#### [Table of contents]

Super-types: | Scheme < PositionId (by extension)
Sub-types: | None

Name | PositionId
Used by (from the same schema document) | Model Group PositionIdAndVersion.model
Abstract | no
Documentation | A unique identifier for the position. The id attribute is defined for intradocument referencing.

XML Instance Representation
<...
positionIdScheme=" xsd:anyURI [0..1]"
id=" xsd:ID [0..1]">
Scheme
</...>
Diagram
Schema Component Representation
<xsd:complexType name="PositionId">
<xsd:simpleContent>
<xsd:extension base=" Scheme ">
<xsd:attribute name="positionIdScheme" type=" xsd:anyURI "/>
<xsd:attribute name="id" type=" xsd:ID "/>
</xsd:extension>
</xsd:simpleContent>
</xsd:complexType>