Power dissipation is rapidly becoming a limiting factor in high performance microprocessor
design due to ever increasing device counts and clock rates. The 21264 is a third generation …

We characterise what is meant by a metod in the context of software development. Then
what is meant by a formal technique. We refute the possibility of formal methods, but express …

We present a refinement strategy for Circus, which is the combination of Z, CSP, and the
refinement calculus in the setting of Hoare and He's unifying theories of programming. The …

The lack of formalism in most software developments can lead to a loss of precision and
correctness in the resulting software. Formal techniques of program development have been …

This paper presents a formal modelling approach for Belief-Desire-Intention (BDI) agents
using Isabelle/HOL and Z-Machines. The BDI architecture is widely used for modelling …

In this work we propose a time model for Circus, The model is an extension to the model
proposed by the unifying theories of programming and used by Circus. We take a subset of …

Previously, we presented Circus, an integration of Z, CSP, and Morgan's refinement
calculus, with a semantics based on the unifying theories of programming. Circus provides a …

The Circus specification language combines elements for complex data and behavior
specifications, using an integration of Z and CSP with a refinement calculus. Its semantics is …

As software complexity increases, so does the need for precision. For some areas, such as
high-integrity and safety-critical domains, this precision is imperative rather than optional. To …

The lack of a formal semantics for UML-RT makes it inadequate for rigourous system
development, especially if the preservation of behaviour is a major concern when applying …