Here are some nice articles about Narwhal and Orca, the IT systems of Democrats and Republicans, what they do, how they were tested and what happened on the election day:
http://www.theatlantic.com/technology/archive/2012/11/when-the-nerds-go-marching-in/265325/
http://www.dailykos.com/story/2012/11/12/1160632/–Orca-vs-Microtargeting
http://arstechnica.com/information-technology/2012/11/inside-team-romneys-whale-of-an-it-meltdown/
Two really good examples of how to develop/test software and how not to.
Ene mene mu ... 