In the framework of Knowledge Management, the Internet can be a valuable source of information to produce new Knowledge. Here, an ontologybased web search system to ease the enterp...
A modern server system must deliver a complex set of obligations towards its users. We study the concept of roles as autonomous encapsulations of a set of promises. Using virtuali...
The Resource Oriented Authorization Manager (ROAM) was created to provide a simple but flexible authorization system for the National Fusion Grid (FusionGrid). This system builds ...
This paper addresses interoperability issues of learning content management systems. Motivation and design challenges are presented and an interoperability framework implemented a...
The present emergence of loosely-coupled, inter-enterprise collaboration, i.e., virtual organizations calls for new kind of middleware: generic, common facilities for managing cont...