
IfcReferencesValueDocument
         
	 Definition from IAI: An IfcReferencesValueDocument is a
		means of referencing many instances of IfcAppliedValue to a single
		document where the document is a price list, quotation, list of environmental
		impact values or other source of information. 
 
	  HISTORY: New class in IFC
		Release 2x. Name changed from IfcReferencesCostDocument in IFC
		2x2
 
	 Use Definitions
 
	 The purpose of this class is to be able to identify a reference source
		from which applied values are obtained. Since many objects may be obtain such
		values from the same referenced document, use of a relationship class allows
		the document to be identified once only when information is exchanged or shared
		rather than many times. 
 
EXPRESS specification:
        
          
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                  | ENTITY IfcReferencesValueDocument;
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Attribute definitions:
        
          
            | ReferencedDocument
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             : 
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                          A document such as a price list or quotation from which costs are obtained.
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            | ReferencingValues
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             : 
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                          Costs obtained from a single document such as a price list or quotation.
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            | Name
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             : 
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                          A name used to identify or qualify the relationship to the document from which values may be referenced..
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            | Description
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             : 
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                          A description of the relationship to the document from which values may be referenced.
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Inheritance graph
        
          
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                  | ENTITY IfcReferencesValueDocument;
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