It has always been said that the openness of open source led to higher quality code, because there were more pairs of eyes looking over the code, and because if they found a problem they could fix it rather than having a depressing conversation with first line support.
As far as I know, there has not been much actual research to prove this point, it has been more like an article of faith for the Open Source community. But the Register reports that Fortify Software (which uses Fortify SCA tools and Findbugs to look for defects in software – as a service) are finding some very low defect rates in popular OSS applications. You can see the results at the Open Review pages.
The relevance for us as developers, apart from confirmation that using OSS does not necessarily represent a technical risk, is that the principles espoused in Builder.com’s 10 Commandments of Ego-lesss Programming really do lead to higher quality. For what is OSS if it isn’t a comprehensive implementation of those commandments?
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