The Great Myth: "Test-out" the Bugs

Phase Recovery Prospects Success Factor

Early Planning Excellent 95%

Requirements Excellent 90%

Initial Design Very Good 80%

Detail Design Good 65%

Coding Fair 45%

Integration Poor 30%

Testing Very Poor 15%

Deployment Nonexistent 0%

Maintenance Nonexistent 0%

[C. Jones, Patterns of Software Systems Failure and Success, 1996]

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