WordPress functionality is usually taken for granted (as it should be), but that makes a little obscure how do you actually get that loaded and ready to use. I felt for a while that I needed better grasp on core load process. Recently I have wandered on WP include stack illustration by Andy Skelton and liked the concept.
On other hand I felt it omitted some parts I am interested in. Since my last query functions chart was quite a success, I decided to try to chart one for loading process.
This is by no means exhaustive (no image could contain that much). Instead I have tried to focus on important stages, differences between front- and back-end, as well as highly important load of extensions (plugins and theme).
Still turned out a little crowded, but sure beats digging for order of those important hooks in source every time.