System Development Life Cycle Models
Anusha Gujjula
IST.8100: Integrating the Enterprise, IS Function/Technology
Wilmington University

Abstract
SDLC aims to develop an information system by using some of its methodologies, which are clearly explained below. The paper also describes about some of its phases and their uses. This paper gives us an idea to the Project managers, developers and trainers about the basis of the model being used for their project and to decide which SDLC model would be suitable for their project retrieved from (Samdani, 2005). The development of a project or a business unit of an organization is depended on it. So by considering it a detailed analysis of the requirements had been carried out. The prevailing life-cycle-based models do not explicitly deal with changing organizational attributes during the development process. Key words: SDLC

Table of Contents Introduction 4 7 Steps of Systems development Life Cycle 4 12 steps of a SDLC model… ….6 Difference between SDLC and other models……………………………………………….....7 Criteria for Choosing Right SDLC for information system…………………………………...8 Compare and contrast of 7step model and 12 steps model 9 Conclusion 9 References 10

Introduction SDLC is the detailed process of development of information systems that describes the process of planning, analysis, designing, testing, deploying, and maintenance of information systems. Various models used for creating this life cycle are Waterfall, Prototype, Incremental, and Spiral models. This life cycle is applied to hardware and software configurations or any one of them. Aken, (2008) stated “This cycle develops high quality systems to meet clients` expectations and requirements through a defined phase with scheduled time-frames and costs” in (p.332). Mainly in IT projects the SDLC is used for development with deliberate,