What is Consistency?
Consistency
The total value of all records, the inventory on the screen, and the actual items in the warehouse match each other.
What it means
Consistency means that the numbers do not deviate from each other. In inventory, three things must be equal. This is the total value of all inventory history, the inventory shown on the screen, and the actual product counted directly in the warehouse.
If the records are correct but different from the actual thing, something that did not actually happen was recorded or something that happened was not recorded.
At the pen factory
On day 6, there are 50 pens on the screen, but the warehouse is empty. If you add up the history, it is 50. The records match, but are different from the real thing. The cause was that production output was registered twice on the fourth day.
Why it matters
If consistency is broken, the screen becomes unreliable, and people start counting manually or using Excel separately. Then there is no point in using the system.