Software is the collection of instruc­tions that computers use to process data into infor­mation. This software guides the computer on what to do and helps users to interact with the computer as well. The software is created using a process that is known as software development. Software development is the process of creating software in successive steps in an orderly manner. These steps are also known as phases and are delib­erate. These phases are collec­tively known as the Software Development Life Cycle (SDLC). The process of software development involves coding as well as design and evalu­ation of the final program. There are a number of phases of software development.

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