JSE_V9_N1_RP3 Bhushan Pant Hardwari Lal Mandoria Ashok Kumar Journal on Software Engineering 2230 – 7168 9 1 27 34 Software Engineering, Software Project Management, Software Reusability, Software Development Life Cycle, COCOMO Model Software Engineering is the science of engineering to the design, development and maintenance of software systems. And these software systems undergo a complete life cycle of initiation, development, implementation, maintenance and retirement before being replaced by a better software subsystem. This paper primarily deals with the vital role of software process management that identifies and examines the development models which are also known as software development life cycle namely Waterfall, Iteration, V-Shape and Spiral and then conceptualize a better software process model. These software development life cycles provide a conceptual way of managing the development of software systems. A new better and efficient software process model is being presented in the paper which uses the concept of reusability of software components and will show effect of the same in project scheduling, staffing and project size by using the renowned COCOMO model. Also, there is a comparative analysis between all models along with the proposed model showing how the drawbacks of the models are covered up by the proposed model. July - September 2014 Copyright © 2014 i-manager publications. All rights reserved. i-manager Publications http://www.imanagerpublications.com/Article.aspx?ArticleId=3211