Implementing Feferman-Landin Logic. The objective of this project is to utilise computer based verification tools (such as PVS and Rewritting Logic) to develop a software engineering environment for specifying and verifying systems written in high-level programming languages such as Java, Scheme, and ML. The project will thus subtantially advance the use of formal computer based tools to develop reliable programs and specifications for life-critical systems. The project will also develop form ....Implementing Feferman-Landin Logic. The objective of this project is to utilise computer based verification tools (such as PVS and Rewritting Logic) to develop a software engineering environment for specifying and verifying systems written in high-level programming languages such as Java, Scheme, and ML. The project will thus subtantially advance the use of formal computer based tools to develop reliable programs and specifications for life-critical systems. The project will also develop formally
based interoperability between the PVS and Maude systems, two widely
used computer tools for reasoning about complex systems.Read moreRead less
Refinement of Temporal and Epistemic Specifications in Asynchronous Systems. Designing distributed systems is a complex activity requiring rigorous mathematical models of designs and specifications. It is desirable for the mathematical notations to be as close as possible to intuitive notions used by designers. One such notion is the idea that components in a distributed system have states of knowledge. Previous work has developed a calculus enabling derivation of systems with global clock by s ....Refinement of Temporal and Epistemic Specifications in Asynchronous Systems. Designing distributed systems is a complex activity requiring rigorous mathematical models of designs and specifications. It is desirable for the mathematical notations to be as close as possible to intuitive notions used by designers. One such notion is the idea that components in a distributed system have states of knowledge. Previous work has developed a calculus enabling derivation of systems with global clock by series of correctness-preserving transformations from a knowledge-based specification. This project will generalize this work to a calculus for systems that lack a global clock, and implement a tool providing automated support for use of the calculus.Read moreRead less
Foundations of Executable Temporal Logic. In many computer applications, including those of temporal reasoning, distributed computations and knowledge representations, the concept of time is of central importance. Multiple granularity of time also plays a critical role as not all events are necessarily defined over a uniform model of time. This project will develop the foundations of executable logical representations, supporting multiple granularity of time. This will allow system developers a ....Foundations of Executable Temporal Logic. In many computer applications, including those of temporal reasoning, distributed computations and knowledge representations, the concept of time is of central importance. Multiple granularity of time also plays a critical role as not all events are necessarily defined over a uniform model of time. This project will develop the foundations of executable logical representations, supporting multiple granularity of time. This will allow system developers access to powerful logical techniques in those applications. In the process, fundamental problems in modelling multiple granularity of time will be identified, and application-independent solutions to those problems will be provided.Read moreRead less