1.2.3 Software Development Methodologies

Which software development methodology follows a fixed sequence of stages where each phase must be completed before the next begins?

• Agile
• RAD
• Waterfall
• XP

Answer explanation

Waterfall uses sequential stages.

A project’s requirements are expected to change frequently as users give feedback. Which methodology is most suitable?

• Waterfall
• Agile
• Spiral
• RAD

Answer explanation

Agile adapts to change.

A system is large and complex, and risks must be assessed throughout development. Which methodology is most appropriate?

• Agile
• XP
• Spiral
• RAD

Answer explanation

Spiral focuses on risk.

Developers are working in pairs, testing code continuously, and releasing small updates regularly. Which methodology is being used?

• Waterfall
• Spiral
• XP
• RAD

Answer explanation

XP includes these practices.

A business needs software quickly and plans to improve it after initial release. Which methodology is most suitable?

• Spiral
• Waterfall
• RAD
• XP

Answer explanation

RAD prioritises speed.

Which methodology would be most appropriate where requirements are clearly defined and unlikely to change?

• Agile
• Waterfall
• XP
• RAD

Answer explanation

Waterfall suits fixed requirements.

A team needs to produce high-quality code with frequent testing and strong collaboration. Which methodology is most suitable?

• Agile
• XP
• Spiral
• RAD

Answer explanation

XP focuses on quality practices.

A safety-critical system must be developed, and risks must be carefully analysed at each stage. Which methodology is best?

• RAD
• Spiral
• Waterfall
• XP

Answer explanation

Spiral manages risk.

Which methodology is least suitable when requirements are likely to change significantly?

• Agile
• XP
• Waterfall
• RAD

Answer explanation

Waterfall is inflexible.

A small project must be completed under significant time pressure, with minimal documentation. Which methodology is most appropriate?

• Spiral
• RAD
• Waterfall
• XP

Answer explanation

RAD is fast.