Two-Phase Quality Measurement Model for Reusable Class Component

Abstract

Software reuse is an important approach to increase software quality and productivity. In object-oriented software system, class component is a primitive element and a critical product. A class component with high reuse potential and high quality can to be a reusable class component. Domain experts and senior software engineers can identify the class component with high reuse potential. However, how to assure a class component with high quality becomes an important issue in software reuse. In this paper, static and dynamic metric data will be collected to measure the quality characteristics of class component. Modularity, complexity and document attributes are three major characteristics to affect the static quality of class component. Test completeness and performance evaluation are two major characteristics for the dynamic quality of class component. Individual software metric cannot measure the overall quality of the class component. Therefore, the software metrics must be combined, and conflicts among the software metrics must be reduced. For this, a Two-Phase Quality Measurement (TPQM) model that covers static view and dynamic view will be proposed in this paper. Applying this model, a highly flexible and practical metric combination approach can be created, the conflicts among individual primitive metrics can be reduced.