First proposed by IBM during the 1980s, Rapid Application Development model is one of the popular SDLC models. Also known as the RAD model, the software development model favors speed and flexibility over thorough upfront planning.
Software Development Life Cycle a.k.a. SDLC offers a systematic process for building as well as delivering software applications. It is a multistep, iterative process. Development teams rely on a system development life cycle to create efficacious software with as little issues as possible.
The generalized version of an SDLC has 6 distinct stages, namely: planning, analysis, designing, development & testing, implementation, and maintenance. Each of them is briefly explained in the following section.