Inconsistencies of CK Metrics and Proposed Methods of Removal

摘要

Chidamber and Kemerer metrics suite is a widely accepted metrics suite for the object oriented system. Besides their wide acceptance they still have some inadequacies or inconsistencies and removing their inconsistencies will tend to make them first choice for the analysis of the object oriented systems. Researchers have made efforts to validate the metrics both theoretically and empirically and even irrespective of its validation CK metrics is the widely used. Method for removing the inconsistency in Weighted Method per Class has been given by Henderson Sellers et al. Methods to remove the inconsistencies in Depth of Inheritance Tree (DIT) and Number of Children (NOC) Metrics of CK Suite have been proposed in the present work. It is shown that DIT and NOC is not measuring what it was intended to measure. The method is further validated by taking examples of some multiple inheritance systems and results have been compared with the earlier definition of DIT and NOC given by CK.