OPUS is an elementary calculus that models object-orientation. It expresses in a direct way the crucial features of object-oriented programming such as objects, encapsulation, mess...
Abstract. This paper describes recent work concerned with the speci cation of requirements on interactive systems and the de nition of user-level properties of such systems. A form...
The paper discusses a proposal of a formal description of ARD+ a conceptual design and hierarchical refinement method for knowledge-based systems. Formalization of method syntax i...
Complex Automata were recently proposed as a paradigm to model multi-scale complex systems. The concept is formalized and the scale separation map is further investigated in relati...
Alfons G. Hoekstra, Eric Lorenz, Jean-Luc Falcone,...
: This paper summarizes how an algebra for mobile systems, the -calculus, can be applied as unified formal foundation to service oriented architectures (SOA). The concepts accounte...