A policy server program evaluates one or more policy statements based on the group or groups to which a user belongs as well as other conditions. Each policy statement expresses an implementation of the access policy of the network, and is associated with a profile. The profile contains one or more actions...http://www.google.com.au/patents/US20060005229?utm_source=gb-gplus-sharePatent US20060005229 - Method of enforcing a policy on a computer network