What are the drawbacks of the Waterfall methodology?

 The waterfall model has drawbacks, including its inflexibility and lack of revision opportunities. Some specific concerns include the following:

  • Design flaws, when discovered, often mean starting over from scratch
  • It doesn’t incorporate mid-process feedback from users or clients and makes changes based on results
  • Delaying the testing until the end of development is common
  • There’s no consideration for error correction
  • The model doesn’t accommodate changes, scope adjustments, and updates well
  • Work on different phases doesn’t overlap, which reduces the efficiency
  • Projects don’t produce a working product until later stages
  • Not an ideal model to use for complex and high-risk projects

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