Cause-Effect Chains Analysis Using Boolean Algebra
Cause-Effect Chains Analysis (CECA) usually results in a diagram showing particular effects with arrows denoting causality and logical operators, reflecting interrelation between causes implying particular effects. Intended outcome of the analysis is to identify main causes triggering observed surface problems. From this point of view the resulting model may be considered a set of functions interrelating occurrence of key disadvantages and initial / target disadvantages. This paper describes the concept of modelling Cause-Effect Chains with Boolean functions. Such approach allows for direct application of techniques used in the area of digital circuits design and testing. Provided examples demonstrate how the proposed logical model may support decisions regarding changes in the analysed technical system.
The authors gratefully acknowledge Prof. Sergei Ikovenko and Dr. Sergey Yatsunenko for their support in preparing early drafts of this paper.
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