1, system planning stage
Make a preliminary investigation on the organization's environment, objectives and system status, determine the development strategy of information system according to the organization's objectives and development strategy, analyze and predict the demand for building a new system, consider the constraints of building a new system, study the necessity and possibility of building a new system, analyze the feasibility of alternative schemes, and compile the new system construction scheme and implementation plan into a system planning report after passing.
2. System analysis stage
According to the scope determined in the system planning report, the current system is investigated in detail, the business process of the current system is described, the limitations and shortcomings of the current system are pointed out, and the basic objectives and logical function requirements of the new system are determined, that is, the logical model of the new system is put forward. The results of the system analysis stage are embodied in the system analysis specification.
3. System design stage
The task of the system design stage is to design the technical scheme to realize the logical model according to the functional requirements specified in the system specification and considering the actual situation, that is, to design the physical model of the new system. The technical document at this stage is the system design specification.
4. Implementation phase
The tasks in the implementation stage of the system include the purchase, installation and debugging of hardware equipment such as computers, compilation and debugging of application programs, personnel training, data file conversion, system debugging and conversion, etc. The implementation of the system is completed by stages according to the implementation plan, and an "implementation progress report" should be written at each stage. Write a "System Test Report" after system test.
5. Maintenance and evaluation
After the system is put into operation, it needs regular maintenance, records the operation of the system, makes necessary modifications to the system according to certain procedures, and evaluates the work quality and economic benefits of the system.
Extended data:
The role of management information system:
1 Management information is an important resource.
Because information resources determine how to use material resources more effectively. Information resources are the crystallization of knowledge acquired by human beings in their struggle with nature. Mastering information resources can make better use of tangible resources and make tangible resources play a better role.
2. Management information is the basis of decision-making.
Decision-making is to make correct judgments and decisions by understanding the objective situation, external situation, external situation and internal situation of the enterprise. Therefore, decision-making and information are closely related. In the past, some decisions based on experience or slapping one's head often led to decision-making mistakes, and it became more and more clear that information was the basis of decision-making.
3. Management information is the basis of implementing management control.
In management control, information is used to control the operation of the whole production process and service process, and the existing plan is constantly revised through information feedback, and management control is implemented through information. There are many things that can't be well controlled, and the root cause is that we don't have a good grasp of comprehensive information.
4. Management information is the link between the inside and outside of the organization.
The contact between enterprises and the outside world, as well as the contact between functional departments within enterprises, is also communicated with each other through information. Therefore, to communicate with various departments and make the whole enterprise run in harmony, we must rely on information. Therefore, it is the link between internal and external communication of the organization. Without information, it is impossible to communicate internal and external contacts and work together well.
Source:
Baidu Encyclopedia-Management Information System