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From David Wood <>
Subject Framework above existing Imperius
Date Tue, 14 Oct 2008 20:05:48 GMT

Our group has designed and developed a layer of functionality on top of 
Imperius, including the following:

Extended Policy object that includes metadata such as name, attributes and 
the ability to get instances information
Policy repository - persistent or in memory storage of Policy objects an 
the ability to activate and deactivate policies.  Policies can be queried 
by activation and/or attributes.
PEP - a policy evaluation point, which defines the set of instances to be 
provided at evaluation time, and an optional set of attributes for 
matching with policies.
PDP - a policy decision point, which allows PEP to register and acquire 
evaluations.  It also holds policies in a policy repository. 
PolicyManager - connects to a PDP for policy management and discovery of 
registered PEP.
Simulation - provides the ability to define PEP via instance providers and 
to run the PEP over policies deployed through a policy manager.

Some of this overlaps with existing Imperius components such as DataStore, 
PolicyRepository and PolicyManager, but I think you will find the above 
are a superset of the functionality there (that is the intent anyway). 

 We'd like to propose including some or all of this framework in Imperius. 
 Is there interest?  If so, I can provide a set of javadoc for the 

David Wood 
Network Server System Software Group
IBM TJ Watson Research Center
914-784-5123 (office), 914-396-6515 (mobile)

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