SYSTEM AND METHOD FOR PERFORMING PARTIAL EVALUATION IN ORDER TO CONSTRUCT A SIMPLIFIED POLICY

摘要

The present invention proposes methods and devices for constructing a simplified attribute-based access control policy, which more faithfully reproduces not only Permit and Deny decisions but also data relating to errors and quasi-errors resulting from the evaluation. To this end, the simplified policy includes new data fields for storing intermediate results. The invention further provides improved simplification rules allowing partial evaluation to be used in a broader range of situations.