This documentation is for WSO2 Identity Server 5.3.0 . View documentation for the latest release.

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In XACML 2.0, obligations can only be added to policies and policy sets. However, with XACML 3.0, rules can also contain obligations. At the root of all XACML policies is a policy or a policy set. A policy represents a single access control policy, expressed through a set of rules. A policy set is a container that can hold other policies or policy sets, as well as references to policies found in remote locations.

Introducing Advice

Advice is a newly introduced feature with XACML 3.0 which is similar to obligations. PEPs do not have to comply with advice statements; PEPs can consider or discard the statement. A common scenario is to explain why something was denied: “User bob is denied because he does not have a valid email”.

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