research on tdd at ms and ibm

I recently posted that I've revamped my thoughts on development methodologies, particularly around behavioral and test driven development. As we continue to rapidly hire at our San Francisco office (Ruby, Hadoop, Javascript, product and project managers), our commitment to modern development tools, technologies, and practices seems even more appropriate.

So, this research into TDD made for interesting reading. Synopsis for fans of short attention span theater:
* 15% increase in development time
* 40-90% drop in defect rate
* Most useful if integrated into project early
* Continuous testing key