There was once a time when developing software required only three main ingredients: a user with a need, a computer, and a programmer. Once these three ingredients came together, the resulting team could largely ignore everything in the outside world except the occasional need for pizza. Later, both the sizes and goals of such teams grew considerably, but often the insular attitude remained. Needs, computers, and software developers still went into a big black box, and sometime later, if the project was fortunate, the required software emerged as if by magic.
