Petri nets: an introduction
Communicating sequential processes
Communicating sequential processes
Specification-oriented semantics for communicating processes
Acta Informatica
Transputer instruction set: a compiler writer's guide
Transputer instruction set: a compiler writer's guide
The Z notation: a reference manual
The Z notation: a reference manual
Normal form approach to compiler design
Acta Informatica
Information Processing Letters - Special issue on the calculational method
Towards Verified Systems
Hybrid Systems I
Semiconductor Device Modeling with Spice
Semiconductor Device Modeling with Spice
Formal Techniques in Real-Time and Fault-Tolerant Systems: Third International Symposium Organized Jointly with the Working Group Provably Correct Systems, ProCoS, Lubeck, Germany, September 19-23, 1994 Proceedings
Simulation Approach to Provably Correct Hardware Compilation
ProCoS Proceedings of the Third International Symposium Organized Jointly with the Working Group Provably Correct Systems on Formal Techniques in Real-Time and Fault-Tolerant Systems
ProCoS Proceedings of the Third International Symposium Organized Jointly with the Working Group Provably Correct Systems on Formal Techniques in Real-Time and Fault-Tolerant Systems
Specification and Transformation of Reactive Systems with Time Restrictions and Concurrency
ProCoS Proceedings of the Third International Symposium Organized Jointly with the Working Group Provably Correct Systems on Formal Techniques in Real-Time and Fault-Tolerant Systems
An Extended Duration Calculus for Hybrid Real-Time Systems
Hybrid Systems
Towards Provably Correct Code Gneration for a Hard Real-Time Programming Language
CC '94 Proceedings of the 5th International Conference on Compiler Construction
Proceedings of the 7th International Workshop on Higher Order Logic Theorem Proving and Its Applications
Physically Realizable Gate Models
Physically Realizable Gate Models
Nets, Terms and Formulas (Cambridge Tracts in Theoretical Computer Science)
Nets, Terms and Formulas (Cambridge Tracts in Theoretical Computer Science)
Real-Time Constraints Through the ProCoS Layers
Correct System Design, Recent Insight and Advances, (to Hans Langmaack on the occasion of his retirement from his professorship at the University of Kiel)
What Level of Mathematical Reasoning can Computer Science Demand of a Software Implementer?
Electronic Notes in Theoretical Computer Science (ENTCS)
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PorCoS is the name of the ESPRIT project“Provably Correct Systems”. A system is seen as a technologicalsystem with embedded controlling processors, sensors, actuators,connecting channels and timers in a physical environment, especiallya real-time or hybrid system with digital and continuous components.The goal of PorCoS is to contribute to mathematicalfoundation for analysis and synthesis and to mathematical principles,techniques and tools for systematic and correct design and constructionof systems, especially in safety-critical applications. Thearticle discusses the notion of system correctness and explainsits non-absolute nature. Two forerunners of ProCoSare described, the so-called stack of Computational Logic Inc.,Austin, Texas, and the three views of concurrent processes –nets, terms and formulas – of E.-R. Olderog. ProCoSis going beyond the forerunners and has extended the descriptionlevels: Requirements and systems architectural language, specificationlanguage, high-level programming language, machine language,hardware description language and description language for asynchronuouscircuits. A major achievement of ProCoS is to haverelated the semantic models of several different system developmentlevels and to have shown up how to mathematically prove correctthe transitions between these levels w.r.t. the semantic relations.The Duration Calculus gives a basis for semantics and verificationand crosses the boundary between discrete and continuous models.The lecture has been given at the Dagstuhl-Seminar“High Integrity Programmable Electronic Systems”, 27. 02. -03. 03. 95, organized by W. J. Cullyer, W. A. Halang and B. J.Krämer.