Document flowcharts concentrate on the physical flow of reports and similar documents. When constructing them, some analysts also include any movement of physical goods in their document flowcharts—e.g., moving inventory from a receiving department to an inventory storeroom. (Document flowcharts typically use hand-truck symbols for this task.) Some document flowcharts also illustrate information flows that do not involve documents (for example, a sales clerk telephoning to check a customer’s account balance before approving a credit sale). Thus, the term ‘‘document’’ broadly includes all types of organizational communications and data flows.