Int J Performability Eng ›› 2007, Vol. 3 ›› Issue (3): 303-318.doi: 10.23940/ijpe.07.3.p303.mag

• Original articles •     Next Articles

Reliability Importance Analysis of Generalized Phased-Mission Systems


  1. Electrical and Computer Engineering Department.
    University of Massachusetts Dartmouth
    285 Old Westport Road, North Dartmouth, MA 02747, USA


Reliability importance analysis is usually used to detect design weakness, to identify which components contribute the most to the failure of a system, and thus to help find the most cost-effective way for upgrading the system. In this paper, we consider the reliability importance analysis of components in a generalized phased-mission system using the Birnbaum's measure. Our method is based on multi-state binary decision diagrams. In addition, it accounts for two-level modular imperfect coverage that arises from the combination of traditional imperfect coverage and more general than OR-ed combinatorial phase requirements. An example three-phased mission system is analyzed to illustrate the applications and advantages of the proposed approach.
Received on June 8, 2006
References: 22