I am working on a project for school. I am to:
1.Build a hierarchal "systems of systems" for a point of sale sysytem for a coffee shop. The system should allow the workers to ring-up orders, handle cash and credit transactions, present the order to the person at the expresso machine, and manage inventory.
2.Develop a system contex diagram for problem 1.
I would appreciate any input. I have not started anything as of yet, due to not really knowing where to begin.
Thank you for your help.