In this paper we describe Racer, which can be considered as a core inference engine for the semantic web. The Racer inference server offers two APIs that are already used by at le...
Interoperability in service oriented environments is heavily inuenced by the view that the cooperating services have on their data. e term service for the abstract contract concl...
In authorization-transparent access control, users formulate their queries against the database schema rather than against authorization views that transform and hide data. The Tru...
WS-BPEL applications are a kind of service-oriented application. They use XPath extensively to integrate loosely-coupled workflow steps. However, XPath may extract wrong data from...
Our Distributed Telecommunication Management System (DTMS) uses an object-oriented model to describe the networked Voice Communication System (VCS) to be managed. In order to allo...