Software Development Life Cycle ( SDLC ) is a process used by the software industry to design, develop and test high quality softwares. The SDLC aims to produce a high-quality software that meets or exceeds customer expectations, reaches completion within times and cost estimates. SDLC, or software development life cycle , is a methodology that defines the entire procedure of software development step-by-step. The goal of the SDLC life cycle model is to deliver high-quality, maintainable software that meets the user's requirements. Learn what the software development life cycle (SDLC) is and how it helps developers create new software products. Explore the seven stages of SDLC and six common models, such as Waterfall, Agile, and Iterative. SDLC guides teams to plan, build, test, and deliver software . Discover phases, KPIs, tools, and checklist with our quick start guide.