8. Construct an event-oriented EER diagram, a context diagram, and a recording process Level 0 data-flow diagram for the following camera receiving and evaluation process at Clickety-Click Camera Repair. Customers bring in one or more faulty cameras or camcorders for evaluation. A clerk receives the camera (s) and generates a receipt to document the camera(s) received. At this time, customers must pay the minimum charge of $40 per item to have the equipment checked. Note that every camera receiving event is associated with exactly one customer, but a customer can obviously revisit Clickety-Click at a different time with other cameras/camcorders to be evaluated. It is necessary to keep track of the inventory of customer cameras and camcorders that have been received for evaluation. Each received camera/camcorder will eventually be evaluated by a technician. The technician writes up an "evaluation" for each camera/camcorder. Obviously, a technician can perform many evaluations, and newly hired technicians may not have performed any evaluations (until they receive training). After the evaluation is completed, usually within 5 working days, the customer