Introduction Software development, for all the contributions it has made to society in terms of information availability and improved efficiency; it is a high risk venture. Reportedly, 70% of software projects either fail to achieve their full purpose or fail entirely. The reasons for this high...

Abstract Many of the software lifecycle models of today focus on and prioritize the initial development of software; with many more implicitly suggesting that the maintenance of software is a homogenous open-ended process whose termination is made at the leisure of its maintainers. While perhaps...