We present an extension of a mathematical framework proposed by the authors to deal with the composition of heterogeneous reactive systems. Our extended framework encompasses dive...
Abstract. The classical work on test case generation and formal methods focuses either on algebraic or model-based specifications. In this paper we propose an approach to derive t...
Traditional security policies largely focus on access control requirements, which specify who can access what under what circumstances. Besides access control requirements, the av...
Use Cases are a wide-spread informal method for specifying the requirements of a technical system in the early development phase. Z is a formal notation which aims to support, bes...
This paper describes the derivation of a program for the propagation of information over a network, with acknowledgement (feedback) when the computation is complete. The derivatio...