Automating diagrams with Visio (Boxes and Arrows) -- "The process I propose assumes that you've spent grueling hours doing the work of preparing your content inventory or sketching your user flow diagrams and now want to render your boxes and arrows for presentation. The next step in the process is to take the data produced in that intellectual work and prepare it for use in a diagramming application. I will illustrate a process that relies on text files exported from Excel and uses Visio to transform those text files into diagrams." (Comments: I'll have to give this a try. It seems quite useful.)