Concurrency introduces a high degree of combinatory which may be the source of subtle mistakes. We present a new tool, Quasar, which is based on ASIS and which uses fully the conce...
We present a framework in which different notions of security can be defined in a uniform and modular way. Each definition of security is formalized as a security predicate by ass...
Access control is the process of mediating every request to resources and data maintained by a system and determining whether the request should be granted or denied. The access co...
Pierangela Samarati, Sabrina De Capitani di Vimerc...
A method is described for the analysis and the verification of safety in software systems. The method offers a formal notation for describing the software structure, the means for ...
Semantics represents a major problem area for active databases inasmuch as (i) there is l framework for defining the abstract semantics of active rules, and (ii) the various syst...