earticle

영어

In this paper we extend the reliability constrained cost minimization (RCCM) model by Helander et al. (1998) from two view points: time non-homogeneous property on software failure-occurrence process and gap between testing and operational phases of software product. The expected cost minimization with reliability constraint is formulated as a non-linear minimization problem under alternative scenario on the operation. We develop an effective optimization algorithm based on the Kuhn-Tucker conditions and provide an illustrative example on how to design a component-based software.