Yesterday, I got a review of a prototype procedures and of my analysis of a whole set of system procedures for HP-UX implementation, defining which procedures to do under which circumstances. The reviewer was not used to looking at a table of contents as an information structure, and asked for a diagram. I spent the rest of the day creating a large Visio diagram that embodied all the different procedures and decisions about what to do. And in the end, the analysis was clearer and easier to understand in its entirety.