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Top Ten Factors that Increase Cost and/or Duration of Software Testing

By Rex Black

Are you a test manager estimating a new software or systems test project?  Here's a list of ten factors that will make the testing cost more, take longer, or both. 

  1. Complexity (process, project, technology, organization, test environment, etc.).
  2. Lots of test, quality, or project stakeholders.
  3. Many subteams, especially geographically separated,
  4. Need to ramp-up, train, and orient growing team.
  5. Need to assimilate or develop new testing tools, techniques, technologies.
  6. Custom hardware.
  7. Need to develop new test systems, especially automated testware.
  8. Need to develop highly detailed, unambiguous test cases (a.k.a., scripts and procedures).
  9. Tricky timing of component arrival, especially for integration testing and test development
  10. Fragile test data (e.g., time-sensitive)

Don't forget about these factors when you do your estimate.  Just one of these factors can cause some real pain and suffering when the consequences arise.

— Published

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