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Software development life cycle (SDLC) is the process of building and maintaining software products. SDLC includes a number of phases such as idea generation, requirements analysis, design implementation, testing, and deployment. The main objective of the SDLC process is to provide complete details about how software should be developed, maintained, and replaced in the future. The process has been divided into various phases to help in better management of the software development process. Software Development Life Cycle Models are a set of guidelines to help developers manage the process.