is the process of locating Web service providers,
and retrieving Web services descriptions that have been previously
Interrogating services involve querying the service registry for Web
services matching the needs of a service requestor.
A query consists of search criteria such as: the type of the desired
service, preferred price and maximum number of returned results, and
is executed against service information published by service provider.
After the discovery process is complete, the service developer or client
application should know the exact location of a Web service (URI), its
capabilities, and how to interface with it.
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