Problem:
Chart symbology - SQUARES for the entity or subject, ARROWS for data flow, RECTANGLE with rounded corners for process & elongated or more flat looking rectangles for data store.
Scenario: An analyst is visiting a retail store to streamline there business process and use some/all of the following information for the flow chart.
Customer buys an item, cash goes into the register, clerk adds up daily sales totals, separates sales by different store departments, gives totals to manager, manager recounts looking for descrepancies, writes totals into ledger, fills out deposit slip, send weekly sales reports to New York.