Process Sales Use Case
OOPJV Project Use Case Text Process Purchase Use Case 1. Brief Description This use case allows a cashier to enter each item purchased, view a running total and line-item details on the screen. ... The main actor of this use case is the sales representative and the manager. The NETS and credit card system is an actor involved within this use case. ... Flow of Events The use case begins when the cashier selects the ‘Purchases’ activity from the main screen.