Good day
@ali hassen ;
You are asking a very broad question. Can you please be more specific?
In general, I would recommend starting the process on a simple 'white board". Have the teams define and describe, sequentially, the steps of the overall activity, which have some type of an output. For example....in the creation of a pizza...
1- Purchasing (output = receive proper items)
2- Assembly (output = properly assembled pizza)
3- Baking (output = properly baked pizza)
4- Cutting (output= properly cut pizza)
5- Packaging (output = properly packaged pizza)
6- Delivery (output = properly delivered pizza)
7- Billing (output = properly received payment)
Hope this helps.
Be well.