Have you worked at a start-up? Or in a field new to you, or new altogether? No amount of well-intended deliberate design will make up for domain expertise. Ever. The best you can do is mitigate as much future refactoring as possible, but eve than that's not always the best use of time.
> Designing business processes must be done with the same deliberate effort
That's not always realistic. Businesses processes solve existing problems, sometimes tackle new problems, but just like data models hindsight is 20/20. And just like data models, business processes are constantly evolving and never done.
