We introduce a general model of refinement. This is defined in terms of what contexts an entity can appear in, and what observations can be made of it in those contexts. We show e...
The problem of finding a graceful labelling of a graph, or proving that the graph is not graceful, has previously been modelled as a CSP. A new and much faster CSP model of the pro...
This paper describes RolEnact: a process-modelling notation used to provide enactable models of process instances. The paper shows how RolEnact models may be produced which are eq...
Keith Phalp, Peter Henderson, Robert John Walters,...
This paper describes a reduction technique which is very useful against the state explosion problem which occurs when model checking distributed systems with several instances of t...
The establishment of a computational framework of roles contributes effectively to the management of instance models because it provides us with a useful policy for treatment of vi...