We propose a new conceptual model for choreographies of web-services. Choreographies are seen as virtual workflow models shared among participants. Subsets of these participants mi...
Context-aware service platforms need to establish and manage trust relationships for users to know if the user's privacy policies are being enforced and for service providers ...
Ricardo Neisse, Maarten Wegdam, Marten van Sindere...
This paper presents the Authorization Service provided by Tivoli Policy Director (PD) and its use by PD family members as well as third-party applications. Policies are defined ov...
This presentation follows up the talk last year to WINFORMS (The Washington Institute for Operations Research and The Management Sciences) in which an approach developed for the a...
We describe an approach to create a synthetic workload for large scale extensional query answering experiments. The workload comprises multiple interrelated domain ontologies, data...