Most current XQuery implementations require that all XML data reside in memory in one form or another before they start processing the data. This is unacceptable for large XML doc...
Subjects model di erent perspectives on a problem domain by collections of related class hierarchies. Subjects can be seen as the result of separate and possibly independent devel...
Through their misuse of authorized privileges, insiders have caused great damage and loss to corporate internal information assets, especially within the Intelligence Community (IC...
We study the access control integration problem for web services. Organizations frequently use many services, each with its own access control policies, that must interoperate whi...