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Preliminary Analysis:

  • Failure to correctly define the objectives
Systems analysis, requirements definition:
  • Failure to correctly define requirements - often by failing to get full input from all stakeholders
Systems Design:
  • Design errors where requirements are not properly accounted for
Development:
  • Coding errors
Testing and integration:
  • Incomplete testing for functionality and integration
ALL PHASES:
  • Failure to implement and follow a change management process
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