This document discusses management systems and integration of applications. It defines management information systems and their goals of providing managers with information, enabling regular operations, and facilitating control, organization, and planning. It then discusses types of management systems like EDI, DSS, and EIS. The document outlines the components, advantages, and limitations of management systems. It defines application integration as unifying data across different applications used by a company. It discusses challenges and approaches to integrating applications, including point-to-point and service bus integration.