Abstract
In the field of reliability analysis just few modeling languages became widely recognized by specialists. Being born out of their simplicity, Fault Trees continuously held appeal to both scientists and engineers, which brought them various syntactical extensions as well as analysis software. Although, Fault Trees have proved their usefulness by nontrivial technical problems, we notice their weakness in specification of maintenance processes, which are usually composed of actions taken in accordance with control- and dataflow. For this reason we try merging UML 2.0 Activity Diagrams with Probabilistic Fault Trees with Time Dependencies by expressing events as objects. That in fact requires redefinition of generalization and causal gates of the trees, though lays the foundations for the new language named Reliability-Enhanced Activity Diagram. By taking advantage of the UML 2.0 infrastructure, we design the language’s profile and validate the approach against a model of a computer system’s repair scheme.
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Kowalski, M., Magott, J. (2011). Towards a UML Profile for Maintenance Process and Reliability Analysis. In: Zamojski, W., Kacprzyk, J., Mazurkiewicz, J., Sugier, J., Walkowiak, T. (eds) Dependable Computer Systems. Advances in Intelligent and Soft Computing, vol 97. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-21393-9_9
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DOI: https://doi.org/10.1007/978-3-642-21393-9_9
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