Determining the most effective class for extending reusability of object oriented system

The object oriented programming paradigm often claimed to allow a faster development pace and higher quality of software. One of the principal goals of object-oriented software is to improve the reusability of software components. Finding the most effective class is one of the most concerned issues to improve reusability. Here effective class means the class with low coupling with respect to others and if a new module is added to this class, minimum modification would be required to achieve reusability. In this paper, a methodology based on various coupling is presented to determine the most effective class in an object oriented software.