I can only find some db schemas, what about all the rest of business logics in UML ?

  • What exactly are you after? There are API documents and the codex. What architecture type documents are you looking for - sequence diagrams? Class diagrams?
    – Kris C
    Oct 16, 2010 at 21:39
  • @asksuperuser - These generally are not some the open-source WordPress community focuses on doing. Do you need these for your own use or because someone you are developing a system for has stated that having them is a requirement? Oct 17, 2010 at 7:54

2 Answers 2


I'm not aware of any besides michel fortin's WP text flow diagram from a few years ago:


That said, there were recent talks about writing some kind of plugin dev's companion reference with the full flowchart of the WP hooks and API.


It's not business logic in UML (which would benefit from some refactoring of core first, right?), just some workflow PDF: Wordpress 3.0 Program Flow (PDF) Preview

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