Flow of Goods in Warehouse with FIFO rule

In Logistic Management,  two things to note for smooth logistics processes of Flow of Goods & Information Flows.
For the flow of goods, originated from the time of receipt of goods (based on the Packing List) of the Supplier which is then stored in the Warehouse. The next is a process flow supply (Based on the Work Order) from the Warehouse to Production / Assembly.
After the process of production or assembly process in Production / Assembly that produce finished goods, Warehouse receives finished goods are stored to the Warehouse.
And the last is shipping the flow (based on Shipment Order), which issued a finished goods from the Warehouse to be shipped to Customer.

Laying and  arrangement of items using the FIFO rule is:
a. If the goods are placed with the top - down, then the top is the arrival of the goods with a longer
b. If the goods are placed with the front - rear, then the front is the arrival of the goods with a longer
c. If the goods are placed with the left - right, then left the goods with the arrival of longer
d. If the items in the heap large amounts, then the guide is a top-down, and front-rear and then left - right.