Practical treatment-methods for adaptive components in the fault-tree analysis

In this paper, the dependability analysis of functionally reconfigurable logic is discussed. Such logic can change its function if a failure has occurred and it has been detected. Based on the fault tree technique, several methods are illustrated and investigated, namely the macro-models, the Markov chains, and the multi-static models, which provide the treatment of the system components with adaptive properties. This paper also proposes a multi-state based procedure well fitted to the re-configuration. Closed formulas are applied in this procedure, as they ensure simpler and faster analysis for a class of systems than other procedures.