Fast Algorithms for Reliability Importance Index Evaluation

Abstract

Nowadays the reliability of products is of interest of their designers and users. It concerns any area of products, from simple home electronic devices to complex and critical industrial systems like atomic power plants or space ships. Depending on the complexity and structure of the investigated system, two basic mathematical models are used to evaluate the reliability – Binary State System and Multivalued State System. To identify the importance of some component of the system to its overall reliability, the importance index of the components is to be calculated. In this paper we present a comparison of different approaches how to calculate importance index of particular component of the investigated system.