Estimating Software Reusability from OO Metrics using Fuzzy Logic

With the rise of the OO software development the traditional software metrics have proved inadequate to measure such systems. This has led to the development of metrics suited to the OO model. Chidamber and Kemerer proposed a set of six metrics to measure the OO aspects in order to help the users in understanding the complexity of object oriented design and in predicting the external software quality attributes such as software defects, testing, and maintenance effort. In this paper, we have used fuzzy logic to evaluate the quality of an OO system in terms of reusability. We have tried to analyze and interpret the impact of six CK metrics on the reusability of the system. Simulation results demonstrate how the reuse factor varies with respect to the metrics viz. WMC, DIT, NOC, CBO, LCOM and RFC.