The datamodel is the most challenging. It's the first time I really feel its absolute influence on the UI (or the related level of code complexity), so I really need to think carefully about it. I'm in the prototype stage but once I start using real data I'm kind of stuck with whatever I've decided upon.

I've looked around a little bit but didn't find anything that serves as real inspiration. I'm really trying to build something uniquely for her and her colleague and then I'll see whether someone else finds value in it.

I'll keep you posted :)