What are benefit/drawbacks of classifying defects during a peer code review

Posted by DXM on Programmers See other posts from Programmers or by DXM
Published on 2012-03-15T03:30:00Z Indexed on 2012/03/19 10:17 UTC
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About 3 months ago, our engineering group rolled out Review Board to be used for all peer code reviews. Today, I had a discussion with one of the people involved in that process and found out that we are already looking for a replacement (possibly something commercial) because of several missing features.

One of the features that is apparently asked by many people is the ability to classify/categorize each code review comment (i.e. is it a style issue, coding convention, resource leak, logic error, crash... whatever).

For those teams that regularly practice code review, is this categorization a common practice? Do you do it? have you done it in the past? Is it good/bad?

On one hand, it gives the team some more metrics and possibly will indicate more specific areas where developers may potentially need to be trained in (at least that seems to be the argument). Are there other benefits? And on the other hand, and this is my concern, is that it will slow down code review process that much more. As a team lead, I've done a fairly large share of reviews, and I've always liked the ability, to highlight a chunk of code, hammer off a comment and move on as fast as possible. Although I haven't tried it personally, I have a feeling that expanding that combo box every time and scrolling/searching for the right category would feel like something is tripping you. Also if we start keeping metrics on this stuff, my other concern is that valuable code review meeting time will be spent on arguing whether something is a logic error or if it should be classified as a crash.

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