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The waterfall model can work reasonably well if the following assumptions is/are satisfied:
I. Requirements won’t change much during the course of time.
II. Needed more time to do work sequentially.
  • a)
    Only I
  • b)
    Only II
  • c)
    Both I and II
  • d)
    None of these
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
The waterfall model can work reasonably well if the following assumpt...
The following assumptions if satisfied, waterfall model will work well:
  • The requirements are precisely known in advance
  • The requirements include no unresolved high‐risk items
  • The requirements won’t change much during development
  • The team has previous experience with similar projects so that they know what’s involved in building the application
  • There’s enough time to do everything sequentially
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Most Upvoted Answer
The waterfall model can work reasonably well if the following assumpt...
Assumptions for the Waterfall Model
  • Requirements won’t change much during the course of time: The waterfall model assumes that the requirements are well-understood and will remain stable throughout the project. This means that there will be minimal changes to the initial project scope and requirements. If requirements are likely to change frequently, the waterfall model may not be the best approach as it can lead to costly and time-consuming rework.
  • Need more time to do work sequentially: The waterfall model follows a sequential approach, where each phase of the project is completed before moving on to the next. This means that there is a clear timeline for each phase of the project, allowing for better planning and scheduling. However, this also means that the project may take longer to complete compared to more iterative or agile approaches.


By satisfying both of these assumptions, the waterfall model can work reasonably well. It is important to carefully evaluate these assumptions before deciding to use the waterfall model for a project. If either of these assumptions is not met, it may be more beneficial to consider alternative project management methodologies.
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