What is a major difference between Agile and Waterfall methodologies?

Agile and Waterfall methodologies represent two distinct approaches to software development, each with its own characteristics. One of the major differences lies in their structure and flexibility. Agile is designed to be flexible and iterative, allowing teams to adapt to changing requirements throughout the development process. This means that Agile teams can modify features and functionalities based on user feedback or new insights that arise during development, promoting a more responsive approach to project management.

In contrast, Waterfall is a more rigid and structured methodology that follows a sequential model. This means that in Waterfall, each phase must be completed before moving on to the next, and there is little room for revising earlier phases once they are completed. This linear approach can lead to challenges if requirements change or if issues are identified late in the process, as it doesn't allow for easy adjustments once the phase is complete.

Choosing Agile allows for continuous improvement and adaptability, making it a preferred choice in many dynamic projects where user needs may evolve over time. On the other hand, Waterfall may be suitable for projects with well-defined requirements and less likelihood of changes.