A prototype proof system for "W: A Logic for Z" has been produced using the 2OBJ metalogical theorem-prover. 2OBJ permits an encoding which is very similar in structure to that of W, and the details are pres...
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The Peripheral Interconnect Bus (PI-Bus) is part of the Open Microprocessor systems Initiative, which is in the process of setting standards for a wide range of chip components, so as to guarantee compatibility betwee...
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The Distributed computing Software project at Oxford University is using formal spécification techniques to explore the design of services in a distributed operating system. Our goal is to construct and publish t...
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Functional programmers often use higher order functions such as map, reduce and filter in writing programs. By giving such higher order functions geometric as well as behavioural interpretation, we use similar techniq...
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In this paper we show how quantitative program logic (Morgan et al., ACM Trans. programming Languages Systems 18 (1996) 325) provides a formal framework in which to promote standard techniques of program analysis to a...
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This paper describes a scheme for representing heterogeneous array circuits, in particular those which have been optimised by pipelining or by transposition. Equations for correctness-preserving transformations of the...
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The authors consider the use of a nonstandard interpretation to analyze parametrized circuit descriptions, in particular for array based architectures. Various metrics are employed to characterize the performance trad...
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The authors consider the use of a nonstandard interpretation to analyze parametrized circuit descriptions, in particular for array based architectures. Various metrics are employed to characterize the performance tradeoffs for generic designs. The objective is to facilitate the comparison of feasible design alternatives at an early stage of development. The research centers on techniques for extracting various performance attributes, such as critical path and latency, from a single generic design representation. The features of this approach include-uniformity, modularity, reusability, flexibility, and computerized support.< >
We present a methodology for the formal specification and development of software systems using Z and the refinement calculus. The methodology combines the data structuring capabilities and the codified discrete mathe...
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