Siemens Aktiengesellschaft

Siemens Industry Software Gmbh

Zhensheng Guo

Marc Zeller

Christof Kaukewitsch

Stefan Rothbauer

Sensitivity analysis of failure events associated with components of a technical system is provided. It is possible to determine, for a plurality of components of a technical system configured in accordance with at least one initial design, importance values which are indicative of a dependency of at least one non-functional specification of a plurality of non-functional specifications of the technical system configured in accordance with the at least one initial design on a change of the technical system with respect to the components of the plurality of components. The method further includes determining a further design of the technical system based on the at least one initial design, the importance values, and a predefined function describing a joint quality score of the plurality of non-functional specifications for the technical system being configured in accordance with a respective design of the technical system.

Sensitivity analysis-based dependability trade-off analysis

A computer-implemented method and an apparatus for determining an optimal system configuration out of a plurality of candidate system configurations j is provided. The method includes: receiving data indicating a plurality of candidate system configurations j; determining quantitative dependability metric value for each of the plurality of candidate system configurations j, wherein the quantitative dependability metric value for each of the plurality of candidate system configurations is a dependability property fulfilment value Xfor each list of dependability properties i for each individual candidate system configuration j; and further on b) a dependability property weighting factor Kfor each of the list of dependability properties i for all of the plurality of candidate system configurations j; and determining an optimal system configuration out of the plurality of candidate system configurations j on a quantitative comparison between the quantitative dependability metric value for each of the candidate system configurations j.

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Zhensheng Guo