A software development lifecycle is a framework that defines a set of tasks to be performed in each step of the software development process. The life cycle provides the structure that an organization’s development team needs to follow. This structure consists of a detailed plan that describes how to develop, maintain, and modify specific software. The life cycle also defines the methodology for improving the quality of the software and the overall development process. The software life cycle usually includes the following phases: analysis and definition of requirements, system design, program implementation, testing, delivery and maintenance, and each of these phases can be viewed as an independent process. There are a large number of software development lifecycle models (traditional planning models and new agile development methods). In the information technology industry, the software product life cycle plays a major role. No software development process will ever be completed efficiently and meet customer requirements without applying a software product lifecycle. This is because the software product life cycle includes a structural framework that describes the stages involved in information system development.