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Which stage is generally the cheapest to fix a bug in software development?

easy📝 Conceptual Q11 of 15
Testing Fundamentals - Why Software Testing Matters
Which stage is generally the cheapest to fix a bug in software development?
ADuring the requirements or design phase
BAfter the software is released to customers
CDuring system testing
DDuring user acceptance testing
Step-by-Step Solution
Solution:

  1. Step 1: Understand bug fixing costs by stage

    Fixing bugs early, such as during requirements or design, is cheaper because changes are easier to make before coding starts.

  2. Step 2: Compare later stages

    Fixing bugs after release or during testing is more expensive due to rework, retesting, and possible customer impact.

  3. Final Answer:

    During the requirements or design phase -> Option A

  4. Quick Check:

    Early bug fixes cost less = A [OK]
Quick Trick: Fix bugs early in design to save cost [OK]
Common Mistakes:
  • Thinking bugs cost the same at all stages
  • Assuming fixing bugs after release is cheapest
  • Confusing testing phase with design phase

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