Integration of Logical and Physical Properties of Embedded Systems by Use of Time Petri Nets

Authors:
Francesca Saglietti
Affiliations:
-
Venue:
SAFECOMP '98 Proceedings of the 17th International Conference on Computer Safety, Reliability and Security
Year:
1998

Citing 4
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Abstract

This article aims at emphasising the importance of integrating logical and physical aspects in order to validate requirements and high-level design of safety-related embedded systems. After some introductory remarks motivating the inclusion of continuous process properties into early requirements analysis, it offers a brief survey on some of the existing alternatives. For the purpose of exemplification this contribution focuses on Time Petri Nets, which are extendible beyond binary logic to include physics in terms of real-valued time intervals. The analysis of a real-world example illustrates the applicability of this approach to support the proof or disproof of safety properties, allowing to identify weak assumptions at early design stages.