Learnability is much more important today than it was in the early days of computers. The web has facilitated a move toward many more “self-service” applications than we previously had. At the same time, it has fostered an expectation that you should be able to use just about anything on the web without extensive training or practice. In the 1980s, if you wanted to book an airline flight yourself, you called and spoke to a representative who had extensive training in the use of a mainframe-based airline reservation system. Today you go to one of many different websites that let you book an airline flight. How long do you think one of those sites would stay in business if it started by saying, ...
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