4. Task: find the optimally viable solution A compromise between all factors First factor: scope of product Want most value for customer at a cost the client can afford Must be as pleasing as possible for customer

5. Customer Take Order Get Paid Save Order Stock Customer records Queue CC Clerk enters the order information into the system. The system stores it. Accounting Clerk enters the order & payment information into the system. The system verifies the CC and saves the order. An IVR (or website) takes the order and processes the payment. The system diagnoses the customer’s shortages and places the order.

6. Customer Take Order Get Paid Save Order Stock Customer records Queue CC Clerk enters the order information into the system. The system stores it. Accounting Clerk enters the order & payment information into the system. The system verifies the CC and saves the order. An IVR (or website) takes the order and processes the payment. The system diagnoses the customer’s shortages and places the order. Key question: what is our scope?

11. Adapted from Justin Smith @tutsplus

12. Customer Take Order Get Paid Save Order Stock Customer records Queue CC What would this system look like? Accounting What about this one? How do you imagine this system would be? Or this one?

14. Customer Take Order Get Paid Save Order Stock Customer records Queue CC What triggers this event? Accounting What is this trigger? Or this one? What do you think the real trigger is here?