The product dimension describes every SKU in the grocery store. Although a typical
store may stock 60,000 SKUs, when you account for different merchandising
schemes and historical products that are no longer available, the product dimension
may have 300,000 or more rows. The product dimension is almost always sourced
from the operational product master fi le. Most retailers administer their product
master fi le at headquarters and download a subset to each store’s POS system at
frequent intervals. It is headquarters’ responsibility to define the appropriate product
master record (and unique SKU number) for each new product.