In this paper we present a technique for the Spin tool, inspired by practical experiences with Spin and a FireWire protocol. We show how to guide simulations with Spin, by constructing a special guide process that limits the behaviour of the original system. We set up a theoretical framework in which we prove under some sufficient conditions that the adjusted system (with the added guide proces...

There is much interest in using the Unified Modeling Language (UML) for architectural description – those techniques by which architects sketch, capture, model, document and analyze architectural knowledge and decisions about software-intensive systems. IEEE P1471, the Recommended Practice for Architectural Description, represents an emerging consensus for specifying the content of an architect...

The classical notion of requirements quality focuses on Adequacy1, Unambiguity, Completeness, Consistency, Verifiability, Modifiability and Traceability (IEEE 1993). In practice however, most requirements specifications do not meet these qualities. One could argue that this is only a problem of applying the right methods and processes and that we should improve our requirements processes until ...

In the south of Italy, State cities (città demaniali) were few under Angevin and Aragon domination (XIII-XV centuries) departing from 1394 Cava was one them although there worked two types authorities: royal feudal. The political institutional organization Cava, an important city “demaniale” in Italy is studied by unpublished local archive source