The invention relates to a semantic referential (40) of Web services (11 - 14), comprising a unique metamodel for semantic description of those services (11 - 14). It also concerns a method (S300 - S400) of creating that semantic referential (40) and a method for semantic discovery of a Web service as a function of a semantic request (S500). The invention further concerns a computer program product and an electronic data processing system comprising code means adapted to implement the steps of the method of the invention.
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