Abstract. We have been witnessing an explosion of user involvement in knowledge creation, publication and access both from within and between organisations. This is partly due to t...
Among the possible approaches for expressing real-time problems with the B method, two are dominant : the use of the usual B mechanisms to define temporal constraints on the one h...
call it, provides abstraction through the rewriting arrow and explicit rule application. It also embeds the notion of sets of results to deal with non-deterministic computations. F...
ally related entity types, or classes, into higher level, more abstract types, as part of a hierarchical classi®cation scheme. graphy, generalization retains the notion of abstrac...
ABSTRACT. Formalisms involving some degree of nondeterminism are frequent in computer science. In particular, various programming or specification languages are based on term rewr...