In this era of Information and Communication Technology, Information System plays a vital role and act as back bone for the success of any organization. The successful development of any Information System depends on the selection and application of an appropriate Software Development Model. This book covers a study of various Software Development Models and the different phases of Software Development Life Cycle from the perspective of both Developers'' and Users'' working in selected organizations in Indian Electronics industry. The book would be useful for the researchers as well as practitioners working in Information System.