| diagram | 
					  | 
				
				
					| namespace | 
					http://www.opengis.net/swe/2.0 | 
				
				
					| type | 
					swe:DataChoiceType | 
				
				
					| properties | 
					| content  | complex |  | substGrp  | swe:AbstractDataComponent |  
  | 
				
				
					| children | 
					swe:extension swe:identifier swe:label swe:description swe:choiceValue swe:item | 
				
				
					| used by | 
					 | 
				
				
					| attributes | 
					| Name   | Type   | Use   | Default   | Fixed   | annotation |  | id | ID | optional   |    |    |   |  | updatable | boolean | optional   |    |    | | documentation |  | Specifies if the value of a data component can be updated externally (i.e. is variable) |  
  |  | optional | boolean | optional   | false   |    | | documentation |  | Specifies that data for this component can be omitted in the datastream |  
  |  | definition | anyURI | optional   |    |    | | documentation |  | Reference to semantic information defining the precise nature of the component |  
  |  
  | 
				
				
					| annotation | 
					| documentation |  | Implementation of a choice of two or more Data Components (also called disjoint union) |  
  | 
				
				
					| source | 
					<element name="DataChoice" type="swe:DataChoiceType" substitutionGroup="swe:AbstractDataComponent"> 
  <annotation> 
    <documentation>Implementation of a choice of two or more Data Components (also called disjoint union)</documentation> 
  </annotation> 
</element> |