Is there an outline for the PW run cycle?

[Charming Troll]

Has anyone seen or know of any documentation on the ProcessWire run cycle? 

I know TracyDebugger can really help but for me that's different than having a knowledge or picture in my mind of what gets processed in what order on most requests.

 

[Robin S]

It's not official documentation but the topic has been discussed here: 

The page and diagram that @teppo created and linked to is dead now but I've found it very informative so here's the diagram for posterity:

It would be wonderful if @ryan or someone knowledgeable created an updated version of this.