As some of you already know I work at Green Man Gaming (mainly at the playfire project). We were planning to do some changes in our architecture but it’s extremely hard to have an idea of all our services and DBs in just a piece of A4 paper. I was trying, trust me, but it was impossible. When I started with this task I did it with lucidchart, after it got so messy I moved to graphviz, but even with the usual good graphs that I get from graphviz it was impossible to get something readable this time.