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As an experiment, Anders has ported the ReliefSim application to Google's AppEngine and gotten it running on the free version at reliefsim.appspot.com (the source code for this application has been released on github: github.com/ccnmtl/reliefsim)
I see programmers as inherently helpful people. Given a 57-step flowchart describing the steps some poor soul has to execute manually, most programmers get a little gleam in their eye and set about providing a streamlined solution. Programmers truly love removing those inefficiencies. Meanwhile, the customer stops wrestling with a frustrating system and gets on with his job.
One of the primary tenets of agile development is test first, test often. After working in a small XP shop doing mobile development, I came to believe strongly that quality code hinges on a test-driven approach.