A military officer in Colorado orders an item whose part number is 7954. The clerk at the supply center hundreds of miles away receives the order through his computer and ships the item: a ship’s anchor, not realizing that Colorado is located hundreds of miles from any ocean. Apparently, the officer wanted to order item number 7945, a fuel tank for a fighter aircraft, but he erred when entering the item’s number. What controls would you implement both at the entry system and at the systems employed at the supply center to prevent such mistakes?