What is a functionality of the Waterfall method as compared to the Agile method for software development?

This reverses the characteristics; Agile is defined by flexibility and iterative speed, while Waterfall emphasizes predictability through rigid sequential phases rather than agility.

In the Waterfall methodology, development follows a strict linear sequence - requirements, design, implementation, testing, and deployment - where each phase must fully complete before the next one starts. Agile, in contrast, uses short iterative sprints that overlap design, development, and testing activities, allowing teams to adapt to change and deliver increments continuously rather than waiting for all prior phases to finish.

This reverses the two methodologies; Agile gives customers continuous feedback throughout each sprint, while Waterfall typically only delivers results to the customer at the end of the entire project.

This also reverses the characteristics; Agile explicitly allows requirements to evolve throughout the project, while Waterfall requires all requirements to be fully defined and locked in at the very beginning.