Are SOAP, WSDL and WS-* part of SOA?

Truth be told I have no clue whether SOA describes/recommends which protocols web services should use for interoperability, or whether it also defines some of the protocols, or does it just recommend the design patterns and best practices services should follow in order to achieve interoperab开发者_开发技巧ility

Anyways, are SOAP, WSDL and WS-* specifications part of SOA and thus outside of SOA arhitecture we use other means to achieve interoperability between web services, or can/are they used independently of SOA?

thank you

I would say they are part of an approach to SOA. SOA is a set of principles, just as Object Oriented design really is at its core a set of principles.

You do not need SOAP or WSDL to have an SOA.

Please, check this question for a lot of useful answers and resources for what SOA is about:

Is it OK to Call a Service from Another Service in an SOA Architecture?

I hope it helps!