Today, it is a bitter of high coupling, two completely different business processes use the same class responsible for the underlying data, resulting in coupling of the communication protocols of the two business processes.
The consequence of this extreme pain is serious. If there is a problem due to coupling, then these problems will be difficult to find, if it is difficult to find the crux, even if you find it, it is difficult to correct! In the best case, even if there is no problem, it also leads to the extreme confusion of code and logic. I dare not think about the situation that may happen next time!
