G. Example - Referencing Externally Defined Business Context Tags

G. Example - Referencing Externally Defined Business Context Tags

This example illustrates the case where the tag does not directly reference the relevantSemanticElement, but, instead, references an externallyDefinedTag.

There are standards bodies that are working on models of business context that can be quite complex. For example, UN/CEFACT is working on business context descriptions that can be arbitrarily complex directed acyclic graphs. BIAN strives to co-exist with and leverage such complex models, rather than replicate their architecture in the metamodel. In the example, the tag simply points to an externally defined UN/CEFACT-style context graph. This approach is possible because the relevant UN/CEFACT specification (which is still a draft) specifies that a context graph has to have a URI.