Kênh công suất dùng để chỉ giới hạn trên lý thuyết bao nhiêu thông tin, về các bit trong một giây, có thể được truyền qua một kênh Con đường chuyên dụng tạo cho thời gian cuộc gọi Hình 4: Mạch chuyển mạch kết nối giữa hai liên kết. | Chapter 2 Management Information Systems AND Decision-Making models I . WHAT is the management U information system mis A. management information system MIS is comprised of computer-based processing and or manual procedures that provide useful complete and timely information. This information must support management decision making in a rapidly changing business environment. The MIS must supply managers with information quickly accurately and completely. Information systems are not new only computerization of them is new. Before computers information system techniques existed to supply information for functional purposes. But what are management information systems The scope and purpose of the MIS are better understood if each part of the term is defined. See Exhibit . Making decisions regarding Planning Organizing Coordinating Controlling Information consists of orderly selected data used for making decisions Systems for integration of all activities through exchange of information Exhibit THE MEANING OF A MANAGEMENT INFORMATION SYSTEM MIS 13 14 MIS Decision-Making Models Management Management has been defined in a variety of ways but for our purposes it comprises the processes or activities that managers do in the running of their organization plan organize coordinate and control operations. Managers plan by setting strategies and goals and selecting the best course of action to achieve the plan. They organize the tasks necessary for the operational plan set these tasks up into homogeneous groups and assign authority delegation. They control the performance of the work by setting performance standards and avoiding deviations from standard. Planning The planning function of management involves the selection of long- and short-term objectives and the drawing up of strategic plans to achieve those objectives. For example the vice president of marketing must consider numerous factors when planning short-term ad campaigns and promotional activities aimed at .
