In a storage warehouse, products come and go all the time. A big difference between a storage company and a production plant is that the storage company does not care about what exact products they have; they care about the amount of space they require for storage. The business is selling storage handling, storage space, and transportation.
For our application, we'll assume that our warehouse has a receipt and a shipping region, an in-between staging region and a bulk storage region. If we simplify the warehouse, it might look like the following floor plan:
Let's look at the various sections in detail: