Which of the following is NOT one of the approaches to the system development life cycle?

• A. Rapid prototyping
• B. Dynamic development
• C. Waterfall
• D. Object-oriented system development

Answer: (C)

The idea being tested is how different development methods shape how work is done across the life cycle. Waterfall is treated here as not fitting the category of an SDLC approach in contrast to the others because it describes a linear, non-iterative sequence of phases. It moves from requirements to design to implementation in one pass, with little opportunity to revisit earlier steps. The other terms reflect approaches that emphasize iteration, rapid feedback, and modular/object-oriented thinking—rapid prototyping focuses on quick, early prototypes to refine requirements; dynamic development (DSDM) is an agile, time‑boxed approach; and object-oriented system development organizes work around reusable objects and iterative refinement. Therefore, Waterfall stands out as not aligning with the iterative, adaptive approaches highlighted by the other options.