This document provides an overview of enterprise resource planning (ERP) systems. It defines ERP as a suite of integrated business applications that collect and manage data from core business processes. The goals of ERP are to acquire profitable customers, retain them longer, and help them spend more. While ERP offers benefits like integration and efficiency, implementing an ERP system is a complex process that requires outside consultants and can cost over $10 million. The document outlines the typical ERP modules and both the advantages and disadvantages of implementing an ERP system.