Software Development Life-cycle

Waterfall Method

A software development approach where each phase has a defined start and end point, moving sequentially from one phase to another with identifiable deliverables.

Rapid Application Development (RAD)

A methodology focusing on producing prototypes iteratively until a final version is approved, emphasizing usability and user involvement.

Spiral Model

A risk-driven development methodology allowing teams to adopt elements of other methodologies, with a focus on risk management and iterative development based on identified risks.

Agile Methodology

A group of methodologies emphasizing iterative development and shifting requirements, producing software in small focused iterations known as sprints.

Extreme Programming

An agile framework encouraging high-quality code production through small iterative releases, with a focus on programming and equal value for all team members.