ABC Corporation has operated under centralized control from its headquarters, which aims at making its operations efficient and cost effective. When a customer buys a specific item from a particular store and pays for the item at the cash register, this information is immediately passed on to the headquarters. At the headquarters, the system reduces the inventory stock level for the purchased item at that particular store by a quantity of one (or whatever quantity is sold) in the central database. By this way, the company can keep a real-time inventory amount of every product item in every store. The ABC’s real-time inventory accounting system allows the company to restock the store shelves in an efficient and effective manner. When a reorder quantity reaches an optimum level, the company can immediately place a reorder request to the vendor and receive the merchandise at its warehouse locations. The warehouses can then break up the shipment and distribute the product to the individual store sites that are running low on the shelf inventory. Each store also uploads daily transaction data to the headquarters so that each day, customer buying data can be compiled and analyzed in order to determine buying behavior of the customer to develop marketing schemes or to produce efficient centralized bulk buying.