Computers have become so complex and commonplace in organizations, it is much easier to integrate all of the data and processing software modules and hardware into one large unit that is easier to access and control. This is called Enterprise Resource Planning, or ERP. Normally ERP systems use the same database throughout an entire company to store various types of data for different computerized functions. When first developed, ERP systems were used only for large manufacturing companies. Today, they benefit all sizes of companies, even those that are quite small.