Using WSDL files in Defining the Type of the system

My Qustion is: How we can use a WSDL file describe a system, to determine whether this system开发者_StackOverflow社区 is Service-based system (SOA) or not?

If something provides a wsdl effectively it is providing a service of some description. So in the theoretical world is is a SOA component. However, whether it fits into or uses say Oracle SOA Server is irrelevant in the SOA theory because what you are really talking about is Service based architecture.

Some Oracle services for example will contain namespaces specific to Oracle systems within the wsdl and they could be used, although I don't know why you would need to care about the server system. It is a service after all.

You can't. The system behaves as it sees fit, the WSDL is just a specification. The system maybe implements a service according to that WSDL maybe not, you can't know even after exhaustive testing since the system can easily change the behavior.

As an example: is codepad.org a service-based system? How would you use WSDL to check that?