The Economist magazine takes a look at open source software development models and the companies currently gaining benefits from it – Google, Amazon, Yahoo! and others. They take a look at several popular open source projects and how they are currently coded.
First, there’s a limited contribution model by Firefox team.
First, there are around 400 contributors trusted to offer code into the source tree, usually after a two-stage review. Farther out, thousands of people submit software patches to be sized up (a useful way to establish yourself as new programming talent). An even larger ring includes the tens of thousands of people who download the full source code each week to scrutinise bits of it.
Then there’s a company model, where no outsiders are allowed, employed by MySQL AB:
It rarely accepts code from outside developers (the complexity of database software makes it less amenable to being independently cobbled together). Instead, MySQL employs 60 developers, based in 25 countries, of whom 70% work from home.
Third, Wikipedia contributing model is analyzed, where anyone who feels like it can contribute.
