On the basis of a case-study, we demonstrate the usefulness of topology invariants for model-driven systems development. Considering a graph grammar semantics for a relevant fragme...
This paper presents a language, based on transaction logic, for specifying dynamic authorisation policies, i.e., rules governing actions that may depend on and update the authoris...
We analyze the multi-party contract-signing protocols of Garay and MacKenzie (GM) and of Baum and Waidner (BW). We use a finite-state tool, MOCHA, which allows specification of pr...
Abstract. Web services are increasingly used for building enterprise information systems according to the Service Oriented Architecture (Soa) paradigm. We propose in this paper a t...
On a high level of abstraction a Web Information System (WIS) can be described by a storyboard, which stract way specifies who will be using the system, in which way and for which...