Managers need information for three reasons, to make effective decisions, to control the activities of the organization, and to coordinate the organization’s activities. Most of management is about making decisions to make effective decisions, managers of all department in DIANA Complex department store need information both from inside the organization and from external stakeholders. Managers’ ability to make effective decisions rests on their ability to acquire and process information such as The current economy has changed. As a result total sales of department stores are dropped. They need to bring the information to analysis and decided to find a way to cope with this problem. Next reason is controlling. It is the process whereby managers regulate how efficiently and effectively an organization is performing the activities necessary to achieve organizational goals. Managers achieve control over organizational activities by taking four steps, First is they will establish measurable standards of performance or goals, such as they determine the time required and the results of the work. Next they will measure actual performance and then they compare actual performance against established goals. The last they will evaluate the result and take corrective action if necessary. The last reasons is coordinating department and divisional activities to achieve organizational goals is another basic task of management. To deal with global coordination problems, DIANA has a private website for employees to order the work. Managers need to understand the information of website and managers have been adopting sophisticated computer-based information systems.