I created this mindmap quite a while ago, as a follow-up to Data Container Boundaries and Complex Data Boundaries blog posts. Due to poor visualization capabilities of Freemind, I used previously, (before going with XMind), I decided to draw the mindmap manually, in MS Paint. That took me loooong time but I liked the result. Although, now I would write the posts differently in some aspects, and I will get back to the theme of heuristic-based boundary testing.

Below you can view and compare manually created map and the one designed with XMind tool.