For several years, I have spent a lot of time doing product design and usability consultation for Corda Technologies' CordaBuilder. This doesn't necessarily mean that all of my ideas are implemented (which in some cases may actually be a good thing), but I try my best.

CordaBuilder, by the way, is a graphical design tool for graphs and maps. It can produce static output, but is more often used in conjuction with CordaServer to create template files for dynamically generated graphs and maps.

You can see CordaBuilder in action by downloading the PopChart+OptiMap package from the Corda Technologies website, and running CordaBuilder.