In systems engineering, information systems and software engineering, the systems development life cycle (SDLC), also referred to as the application development life-cycle, is a process for planning, creating, testing, and deploying an information system. The systems development life cycle concept applies to a range of hardware and software configurations, as a system can be composed of hardware only, software only, or a combination of both.
There are usually six stages in this cycle:
- requirement analysis,
- development and testing,
- Requirement analysis
- Software design such as architectural design
- Software development