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Namespaces and Identifiers
WSML adopts the namespace mechanism of RDF; a namespace can be seen as part of an IRI
Namespaces can be used to syntactically distinguish elements of multiple WSML specifications and, more generally, resources on the Web
A namespace denotes a syntactical domain for naming resources
An identifier in WSML is either a
, or a
The sets of identifiers of the following items are disjoint: ontology, goal, Web service, ooMediator, ggMediator, wgMediator, wwMediator, capability, interface, choreography, orchestration, state signature, grounding identifier, variant identifier, datatype wrapper identifier, built-in predicate identifier
Namespaces were first introduced in XML for the purpose of qualifying names which originate from different XML documents. In XML, each qualified name consists of a tuple <namespace, localname>. RDF adopts the mechanism of namespaces from XML with the difference that qualified names are not treated as tuples, but rather as abbreviations for full URIs.
WSML adopts the namespace mechanism of RDF. A namespace can be seen as part of an IRI.