Model Driven Engineering proposes the use of models at different levels of ion. Step by step validation of model refinements is necessary to guarantee the correctness of the final ...
: Development of distributed systems is complicated by the absence of reliable global timing, concurrency, and nondeterminism. To deal with these obstacles log files are produced b...
Abstract During its development computer science has more and more established a way it sees itself. However, in recent years the rise of distributed systems and object orientation...
We present a formal, tool-supported approach to the design and maintenance of access control policies expressed in the eXtensible Access Control Markup Language (XACML). Our aim is...
The Uni ed Modeling Language UML is rapidly emerging as a de-facto standard for modelling OO systems. Given this role, it is imperative that the UML needs a well-de ned, fully expl...
Andy Evans, Robert B. France, Kevin Lano, Bernhard...