Powerful applications can be implemented using command scripts. A command script is a program written by one user, called a writer, and made available to another user, called the ...
Given the numerous knowledge representation models (KR-schemes) that have been proposed, it would be desirable to have a formal, unifying model for the description of a KR-scheme,...
The usability of access control mechanisms in modern distributed systems has been widely criticized but little studied. In this paper, we carefully examine one such widely deploye...
Owners of systems and resources usually want to control who can access them. This must be based on having a process for authorising certain parties, combined with mechanisms for e...
In order to provide a general access control methodology for parts of XML documents, we propose combining rolebased access control as found in the Role Graph Model, with a methodo...