Embodiments of the present invention provide systems and methods of designing and implementing service policies in a telecommunications network. The policy management system includes interfaces operable to receive different subscriber information, an execution framework which includes policies which can be dynamically customized using one or more custom execution blocks, wherein the policies can receive the subscriber information through the interfaces and execute each policy based on the subscriber information. The method enables a network operator to dynamically update policies using customizable execution blocks and thereby change services associated with a particular policy as well as change the input factors (subscriber location, profile, etc.) available to that policy.