ERP provides an integrated and continuously updated view of core business processes using common databases maintained by a database management system. ERP systems track business resources—cash, raw materials, production capacity—and the status of business commitments: orders, purchase orders, and payroll. The applications that make up the system share data across various departments (manufacturing, purchasing, sales, accounting, etc.) that provide the data. ERP facilitates information flow between all business functions and manages connections to outside stakeholders.
Enterprise system software is a multibillion-dollar industry that produces components supporting a variety of business functions. IT investments have, as of 2011, become one of the largest categories of capital expenditure in United States-based businesses. Though early ERP systems focused on large enterprises, smaller enterprises increasingly use ERP systems.