International Journal of Engineering and Technology

This paper presents a new package cohesion metric (CohP), which is based on the properties of elements of a package and dependencies with in the package elements. The proposed metric has been validated theoretically against Briand properties as well as empirically using packages taken from two open source software systems. An attempt has also been made to present a positive Spearman correlation between CohP values and Average Effort require to extend the packages. The results indicate that proposed metrics is used to predict extendibility of a software system.