“If I had asked people what they wanted, they would have said faster horses.”
I’m not using this apocryphal quote to suggest that we shouldn’t ask people working in a law firm what they want from their systems and tools. Rather, I’m using it to make the point that, “what people say they will do, compared to what they actually do is notoriously unreliable.” (Macadamian)
De La Soul says 3 is the magic number.
In the design world, however, the magic number is 7 plus or minus 2 (so more of a magic range, I suppose). The reason is simple: apparently people can only remember or process 7 +/- 2 pieces of information at a time (George A.Miller, 1956). So, we IAs set about ensuring our designs had only 5 to 9 options in a navigation system or 5 to 9 tabs on a screen.