Agile and Waterfall are two popular methods for organizing projects. Waterfall is a more traditional approach to project management, involving a linear flow. Agile, on the other hand, embraces an iterative process.
Waterfall is best for projects with concrete timelines and well-defined deliverables. If your major project constraints are well understood and documented, Waterfall is likely the best approach.
The Agile methodology was created for projects where the significant constraints are not well understood. If your project involves developing a new product, the scope and timeline may be difficult to determine in advance. Agile is flexible, enabling you to plan a project in stages or “sprints” to evolve as the work progresses.