IfSQ

85% of errors can be fixed in a few hours

Research Finding:
About 85% of errors can be fixed in a few hours if caught in the development stage.

Sources:

Evaluating Software Development by Error Analysis: The Data from the Architecture Research Facility

• David M. Weiss
• Recorded 1979 in Journal of Systems and Software, 1, no. 2, June
• Pages 57-70

Collecting and Categorizing Software Error Data in an Industrial Environment

• Thomas J. Ostrand, and Elaine J. Weyuker
• Recorded 1984 in Journal of Systems and Software, 4, no. 4, November
• Pages 289-300

Practical Software Metrics for Project Management and Process Improvement

• Robert B. Grady, and Tom Van Slack
• Published 1992 by Prentice Hall