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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
data value
, an
IRI
, an
anonymous ID
, or a
variable
- 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.
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