For a great counterexample, watch the first 10 minutes of this screencast of data-driven programming, in which the the data types for OCR, like PixelData, are f

For a great counterexample, watch the first 10 minutes of this screencast of data-driven programming, in which the the data types for OCR, like PixelData, are first written as essentially undefined, and then refined and changed as needed by the code as it develops. http://www.youtube.com/watch?v=045422s6xik http://www.youtube.com/watch?v=045422s6xik