Which of the following best describes an iterative process in Agile methodology?

An iterative process in Agile methodology is defined by repeating cycles of development and feedback. This approach allows teams to incrementally develop a product by continuously revisiting and refining components based on stakeholder input and testing results. Each iteration typically results in a usable product increment, facilitating adaptability to changing requirements and enabling the incorporation of feedback on a regular basis.

The essence of Agile is to promote flexible responses to change rather than a fixed plan. This enables teams to deliver value more effectively and address user needs in a timely manner. Each cycle allows for reassessment and realignment of goals based on newly gathered insights, which is central to Agile principles.

In contrast, a linear approach characterized by strict phases would not allow for the adjustments that iterative processes benefit from, making it incompatible with the core tenets of Agile methodology. Similarly, a one-time effort or rigid project timelines do not accommodate the flexibility and responsiveness that iterative cycles provide, hence are not representative of Agile practices.