Code Inspection Boosts Productivity
When preparing for code reviews, developers find the majority of bugs that would otherwise be found by testers and users.
Research has yielded these findings:
- A study of 13 reviews at AT&T found that the importance of the review meeting itself was overrated; 90% of the defects were found in preparation for the review meeting and only about 10% were found during the review itself.
- IBM found that each hour of inspection prevented about 100 hours of related work.
- As much as 90% of development effort on a typical software system comes after its initial release, with two-thirds being typical.
- Designers and programmers learn to improve their work through participating in inspections and inspections improve productivity by 20% or more.