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From Xiping Wang <>
Subject policy analysis support
Date Tue, 02 Sep 2008 14:39:52 GMT


We, at IBM T.J.Watson Research Center, have been developing a policy
analysis module on top of Imperius that allows a policy writer perform the
following tasks automatically.
1) Dominance check: finding if a policy is dominated by other policies,
thus removing redundancy among policies.
2) Simultaneous applicability check: finding if two policies are
simultaneously applicable, thus preventing potential conflicts at
specification time.
3) Coverage check: finding if a set of policies covers all the sensor
spaces required, thus ensuring policies specified adequately.
4) Meta policy based conflict detection/resolution: detecting/resolving
conflicts at runtime.
4) Rule-based policy transformation: allowing transformation of abstract
policy into concrete policies or vice versa.
The package implements advanced algorithms for policy analysis and requires
certain changes to be made to the current Imperius implementation for
We would like to find out if there is a strong interest in this effort and
possible integration with Imperius.


Xiping Wang
IBM T.J.Watson Research Center
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