The term Ubiquitous Computing was coined by Mark Weiser almost two decades ago. Despite all the time that has passed since Weiser's vision, ubiquitous computing still has a l...
Modelling and analysing distributed and mobile software systems is a challenging task. PEPA nets—coloured stochastic Petri nets—are a recently introduced modelling formalism w...
The language MSR has successfully been used in the past to prove undecidability about security protocols modeled according to the Dolev-Yao abstraction. In this paper, we revise t...
Software architecture plays a central role in developing software systems that satisfy functionality and security requirements. However, little has been done to integrate system d...
The RBAC96 access control model has been the basis for extensive work on role-based constraint specification and role-based delegation. However, these practical extensions can als...