The first stage: electronic data processing (EDP) stage. Enterprises began to have computers and engaged in some simple data processing. There may be many computers, but without the concept of central server, every computer has an equal status. At present, the application of computer in data processing is limited to reducing the labor intensity of personnel in calculation, such as calculating wages and statistical accounts, which belongs to electronic data processing business. Dealing with a single business of an enterprise involves little management content.
The second stage: transaction processing stage (TPS). With the growth of enterprise business demand and the development of technical conditions, there is a demand for cross-departmental information sharing between computers. Computers have produced management functions in local transaction processing, but they have not formed the overall management of enterprises.
The third stage: Management Information System (MIS). Management information system (MIS) is a man-machine system based on system idea, with electronic computer as the basic information processing means and modern communication equipment as the basic transmission tool, which can provide information service for management decision-making. In the MIS stage, the information system has formed the computer application of the whole enterprise. Emphasis is placed on enterprise management system as the background and grass-roots business system as the basis. It also emphasizes the information connection between the business systems of the enterprise, aiming at completing the overall task of the enterprise. It can provide management information for leaders at all levels of enterprises, but the scope of information is more focused on the inside of enterprises.
The fourth stage: Decision Support Stage (DSS). In fact, the current computer information system has developed from a management information system to a decision support system that emphasizes supporting the high-level decision-making of enterprises.
The development and application of Internet technology has greatly expanded and promoted the functions and functions of information systems. Its biggest feature is to connect many isolated information systems through the Internet, thus forming a large-scale information system based on network interconnection and realizing greater information sharing. With the help of automation and internet technology, enterprise information system integrates the operation, management, decision-making and service of enterprises, so as to achieve the unity of efficiency, benefit and benefit of enterprises and systems, and make computer and internet technology play a more significant role in enterprise management and service.