From the top step. In the past, the Department has a departmental scanners, which can be faster than the Purchasing Department performs and is quickly delivered into the system.
From the top step In the past, departments have departmental scanner. This can be faster than the purchasing department made. And a quick delivery system.
From the above steps, in the past, the accounting department has a scan of the Department. Which can run faster than purchasing department. And a fast delivery system.