How to model this scenario
Hello, I have a school project on a real company and I would like some advice in how to model it.
I have three processes, First process "sell product" is the "main process" and there is process "enter new product". They are triggered by different events. All processes are done by same employees. Process "sell product" has priority, so whenever a new customer comes into shop if the employee has been doing process "enter new product" that process is interrupted and after "sell product" is over he returns doing "enter new product".
Hope I was clear..
I'll attach a rough sketch of my idea