Combining Architecture-based Software Reliability Predictions with Financial Impact Calculations

Authors:
Franz Brosch;Ralf Gitzel;Heiko Koziolek;Simone Krug
Affiliations:
Forschungszentrum Informatik (FZI) Karlsruhe, 76137 Karlsruhe, Germany;ABB Corporate Research, 68526 Ladenburg, Germany;ABB Corporate Research, 68526 Ladenburg, Germany;Chair in Information Systems III, University of Mannheim, 68131 Mannheim, Germany
Venue:
Electronic Notes in Theoretical Computer Science (ENTCS)
Year:
2010

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Abstract

Software failures can lead to substantial costs for the user. Existing models for software reliability prediction do not provide much insight into this financial impact. Our approach presents a first step towards the integration of reliability prediction from the IT perspective and the business perspective. We show that failure impact should be taken into account not only at their date of occurrence but already in the design stage of the development. First we model cost relevant business processes as well as the associated IT layer and then connect them to failure probabilities. Based on this we conduct a reliability and cost estimation. The method is illustrated by a case study.