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Web Services & SOAP...
Web Service is essentially:
- A server program that accepts requests and issue responses using SOAP
- Example
- A banking application that provides the balance for an account
Typically, consists of dozens of such basic functions
Clients are not limited to one Web Service
- Can use other Web Services to accomplish task
Notes:
A Web Service is in its most basic form is simply a server program that accepts requests and issue responses using SOAP. As the previous example shows, this could be a banking application that provides the balance for an account.
Typically however, Web Services would consist of dozens of these very basic functions making up something akin to a banking API (for the example above). Clients to this banking Web Service would then invoke these functions and provide higher level services.
These clients do not have to be limited to only this API but could use other Web Services in the Internet (say, a credit authorization Web Service) to accomplish their task.