Those of us in the computer field often tend to see our world as one where things happen rather fast. In the area of computer system development the ’80s was a decade where an overwhelming number of new system methodologies were introduced, and where the overall perspective on system development shifted to include varying degrees of user involvement. Each time a change was trumpeted in a journal or at a conference there was often a chorus of researchers ready to announce the change, as if the world had in fact switched to the new idea. But in the day-to-day practice of developing computer systems, as in most practices, changes are slow, and, in fact quite small.