Institute of Electrical & Electronic Engineers
Today's complex and multi-layered enterprise systems demand fine-grained access control mechanisms supporting dynamic security policies for large and distributed repositories. Thus, the efficient evaluation of security policies becomes an important factor for the overall system performance, specifically with respect to systems with a high degree of user interaction like workflow systems. Caching approaches may help to address this situation. The authors propose ProActive caching, a two-phased caching approach: in an offline phase, they automatically determine a workflow-specific heuristic for pre-computing cache entries.