IJIRCSTJournal International Journal of Innovative Research in Computer Science and Technology I S Volume 7 Issue 6 Computer Science and Engineering English November - December 2019 N N Y 2021 11 07 Computer Sciences MODULARITY: A MAJOR ASPECT TO MAINTAINABILITY English Y 158 164 Mohit Kumar English Y Dr. Abdullah English N DR. Jarnail Singh English N https://doi.org/10.21276/ijircst.2019.7.6.4 Researchers and Practitioners advocated that the modularity aspect of the software is highly desirable and significant for developing quality-oriented maintainable software. Despite the fact modularity is a vital and highly significant aspect for the software development process, it is poorly managed. This paper here highlights the importance of modularity broadly and also as an important contributor of software maintainability. In this paper, a correlation between the major attributes of object-oriented design and modularity has been ascertained. A modularity quantification model using multiple linear regression has been proposed for object-oriented design. Finally, the validation of the proposed modularity quantification model is made known by means of experimental tests and the results show that the model is highly significant. English Maintainability, Modularity, Reusability, Testability, Design phase, Object Oriented Design https://ijircst.org/abstract.php?article_id=610