Which metric would you track to evaluate the efficiency of a VIM program relative to traditional inspections?

• A. Defect detection rate
• B. Inspection time vs traditional
• C. User satisfaction scores
• D. Safety incident counts

Answer: (B)

The main idea here is measuring efficiency by how much time is required to complete inspections. To compare a VIM program with traditional inspections, focus on the time spent on inspections and compare it to the time taken using the traditional method for the same scope of work. If the VIM process consistently takes less time while delivering equivalent (or better) results, that shows improved efficiency. Track inspection duration for each task, compute a time-per-inspection metric, and compare it against the baseline from traditional inspections.

Other metrics can be informative but don’t directly indicate efficiency. Defect detection rate tells you about effectiveness, not how quickly work is done. User satisfaction reflects usability, not speed. Safety incident counts measure outcomes, not the efficiency of the inspection process. If time savings occur but quality suffers, you’d want to look at quality metrics as well, but for purity of the efficiency question, time comparison is the best single gauge.