Web Services Policy 1.2 – Framework (WS-Policy) [WS-Policy] defines a framework for allowing Web services to express their constraints and requirements. Such constraints and requirements are expressed as policy assertions. The Web Services Security Policy Language (WS-SecurityPolicy) [WSSP] defines a set of security policy assertions for use with the [WS-Policy] framework with respect to security features provided in WSS: SOAP Message Security. This document defines additional policy assertions that can be used together with policy assertions defined in [WSSP] to express constraints and requirements that cannot be expressed with just the policy assertions defined in [WSSP].
Sections 1.7 and 2 of this specification are normative and can contain the terms MAY, SHOULD, MUST, MUST NOT, and SHOULD NOT as defined in RFC 2119. All other sections and examples in this specification are informative.