Design and operational maintainability importance measures: A case study

Performance of a system depends upon its components. Some components have major influences on system reliability and maintainability than others. Hence, several component importance measures have been well defined and widely used in the reliability area. These importance measures enable the weakest and most critical areas of a system to be identified, and which should be considered modified to improve the production plant performance. The aim of this paper is to define maintainability importance measures in order to find the criticality of each component or subsystem from the maintainability point of view. Such importance measures should be useful for resources allocation to improve production plant performance in both the design and operation phases.