0 Bouras, Gouvas, and Mentzas
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These semantically enriched Web services-oriented features can constitute the ideal
solution to integration problems, as they enable dynamic, scalable, and reusable
cooperation between different systems and organizations. Table 2 summarizes the
main improvements that the semantic markup resulted in Web services:
Semantic.Web.Services.Registries
As presented in the first section, the Web services architecture involves three core
entities: (1) the service provider (supplier), (2) the service requester (client), and
(3) the business services registry serving as a business mediator. The Semantic
Web services deploy a similar architectural schema, with the crucial difference
that the service technical and functional descriptions are semantically enriched
with concepts defined in reference ontologies. However, current widely??”known
and??”used service registries (i.e., UDDI and ebXML registry) specifications and
implementations do no support the effective handling of semantic profiles of Web
services, and a number of research activities have taken place, recently, trying to
semantically enrich the standardized service registries.
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