It holds whatever you need held.
Records link to each other and the calculations take care of themselves.
Every part of the system
is run by talking to it.
When one thing happens, another follows.
Built, tested, running.
Form layouts, tablet screens, process boards, dashboards.
All of them the way you described.
You ask, it answers.
“Which customer earned me the most this month?”
It talks to outside systems.
Takes data in, sends data out.
Who sees what, who can change what — you decide.