STATEMATE: A Working Environment for the Development of Complex Reactive Systems
IEEE Transactions on Software Engineering
The Z notation: a reference manual
The Z notation: a reference manual
Specifying a Safety-Critical Control System in Z
IEEE Transactions on Software Engineering
Agendas—a concept to guide software development activities
Proceedings of the IFIP TC2 WG2.4 working conference on Systems implementation 2000 : languages, methods and tools: languages, methods and tools
Specifying and Verifying Requirements of Real-Time Systems
IEEE Transactions on Software Engineering
ASIAN '97 Proceedings of the Third Asian Computing Science Conference on Advances in Computing Science
ICATPN'05 Proceedings of the 26th international conference on Applications and Theory of Petri Nets
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We present a method to specify software for a special kind of safety-critical embedded systems, where sensors deliver low-level values that must be abstracted and pre-processed to express functional and safety requirements adequately. These systems are characterized by a reference architecture. The method is expressed as an agenda, which is a list of activities to be performed for setting up the software specification, complemented by validation conditions that help detect and correct errors. The specification language we use is a combination of the formal notation Z and the diagrammatic notation statecharts. Our approach not only provides detailed guidance to specifiers, but it is also part of a more general engineering concept for engineering safety-critical embedded systems that was developed in the ESPRESS project, a joint project of academia and industry.