This document provides an overview of Enterprise Resource Planning (ERP) systems. It discusses how ERP systems can integrate key business functions like finance, manufacturing, supply chain and human resources. The document outlines benefits of ERP systems such as reduced costs, improved efficiency and data integrity. It also discusses risks like high costs and difficulty adapting to new business processes. An example is provided of how Tata Steel implemented a new ERP system to integrate its information systems for the steel industry. In conclusion, the document advocates that ERP systems can provide a holistic solution to manage business change when chosen, implemented and used properly.