What is the Problems of Waterfall Model?

What is the Problems of Waterfall Model?

In reality, customers may not know what their needs are until they see the software at work, so changing their requirements leads to redesign, redevelopment and retesting, and increased costs. Developers may design a new software product or feature without realizing the difficulties ahead, in which case it is better to modify the design rather than insist on a design that does not take into account any newly discovered constraints, requirements, or problems. As a result, there is no guarantee that the requirements the organization has in mind will actually work.

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