Which software development method is linear with upfront planning and a rigid process?

Which software development method is linear with upfront planning and a rigid process?

• A. The SDLC/Waterfall method
• B. The Agile method
• C. The Spiral model
• D. Rapid Application Development

Answer: (A)

The idea being tested is a development approach that follows a straight, step-by-step path with requirements defined upfront and little room for change. This is the Waterfall approach in the SDLC. It proceeds through distinct phases—requirements, design, implementation, verification, and maintenance—in a fixed order. Once a phase is completed, you typically don’t revisit previous phases, and changes can be costly. That rigidity and the emphasis on upfront planning make this method a good fit for projects with stable, well-understood requirements and where predictability is prioritized.

In contrast, Agile emphasizes iterative cycles and frequent reassessment of requirements; Spiral blends iterative development with ongoing risk analysis and refinement; Rapid Application Development prioritizes speed through rapid prototyping and user feedback, often with less emphasis on a strictly linear sequence.