Biegert, Uwe2001-02-162016-03-312001-02-162016-03-312000089863968http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-7657http://elib.uni-stuttgart.de/handle/11682/2477http://dx.doi.org/10.18419/opus-2460Computer controlled systems consist of a complex interaction between technical process, human task and software. For the development of safety critical systems new method are required, which not only consider one of these parts of a computer-controlled system. In this paper a qualitative modeling method is presented. The method is called SQMA, Situationbased Qualitative Modeling and Analysis and it origin goes back to Qualitative Reasoning. First, all parts of a system are modeled separated and then combined to a unique model of a computer-controlled system. With this qualitative model a computer supported hazard analysis can be realised.eninfo:eu-repo/semantics/openAccessSicherheit , Gefährdungsanalyse / Arbeitsschutz620Automatisierungssystemecomputer controlled systems , automation , safety , safety analysis , qualitative modellingconferenceObject2015-11-13