WS Policy is a flexible / extensible grammar to define
- capabilities
- requirements
- general characteristics of entities in an
XML Web Services based system based on a particular domain.
Examples of Domain for which we have separate policies:
- Security
- Privacy
- Reliable Messaging
Where and how is a WS-Policy used?
Ans: A Web Service uses a policy to define its requirements in the wsdl file.
For eg:
policy 1: all messages must be signed and encrypted in a certain way.
policy 2: every message has to have a timestamp.
What is WS-Policy Terminology?
Ans:
Policy --> multiple Policy Alternative
Policy Alternative --> multiple Policy Assertion
Policy Assertion - is the criteria - for eg: every msg needs to be encrypted.
eg: of WS-Policy
References:
- https://www.youtube.com/watch?v=vh4gYKe3_Jc
- www.redbooks.ibm.com/redbooks/pdfs/sg247620.pdf
- http://www.w3.org/TR/ws-policy-primer/
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