The core of aWarehouse Management System (WMS) is a database of skus and a stock locator system so that one can manage both the inventory of skus and the inventory of storage locations.
There are significant opportunities to save labor when the system is expanded to include systems to direct receiving/put-away and/or order-picking. Additional systems are available to control ever finer detail within the warehouse as well as events ever farther up/downstream in the supply chain.