I was thinking more about this topic, particularly when it got into association classes:
An app already looks like a UML diagram (PlantUML source).
Here’s My Apps:
Here’s the GitHub app (PlantUML source) (not super rigorous):
It would be pretty cool if Fibery could import and export PlantUML diagrams
This is just a thought experiment really. Lots to think about.
A complex app with many fields and relations would be super easy to bootstrap as a PlantUML file.
I actually did something like this using the Orchard XML import format: quick & dirty YAML file, transform to XML, import, try it out, iterate. UML would be much nicer.