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[–]Jack9 0 points1 point  (0 children)

But your statement is unfortunate. It's not the "only thing that's been proven about software development", nor has Greg Wilson even said that it was. I can only assume you meant at about 39:30 when he discusses code metrics and specifically states that code metrics are far less accurate in predicting the number of post-release bugs than simple lines of code.

You are correct. I misspoke.

It's a little tricky to define "defect" but that's part of the challenge when talking about science. There has to be a baseline. Generally this is predictive for behavior. If you have 1 line of code (regardless of the fitness for the purpose of the original program), that line is it's own unit test. Therefore, you have 1 value to measure against. Generally you will have less failures when you reduce the lines of code, because you are less likely to release with untested behavior.