What is the basic idea of management information system design?

The first layer includes online screen activities. The purpose of this layer is to determine the layout and content of the screen and report, the sequence of screen activities and the method of screen typesetting.

The second layer is the extension of the first layer, which refers to the interaction and data operation of the database. The main purpose of this layer is to demonstrate the operation of key areas of the system. Users can input multiple sets of transaction data and perform the simulation process of these data, including error handling.

The third layer is the working model of the system, which is a subset of the system. The logical transactions of the application and the interaction of the database can be operated with actual data. The purpose of this layer is to develop a model and make it develop into the final system scale.

The main advantage of prototype method is that it is a method to support users and make users play an active role in the design stage of system life cycle; It can reduce the risk of system development, especially in the development of large-scale projects, because it is difficult to complete the analysis of project requirements at one time, the effect of applying prototype method is more obvious. The concept of prototype method is not only applicable to the redevelopment of the system, but also applicable to the modification of the system; The prototype method is not limited to the computer aspect of the design and development project, and the working model of the system is made by the third-layer prototype method. The success of rapid prototyping needs the support of a good development environment/tool like the fourth generation language (4GL). Prototype method can be combined with traditional life cycle method, which will expand users' participation in requirements analysis, preliminary design and detailed design and deepen users' understanding of the system. In recent years, the idea of rapid prototyping method has also been applied to product development activities.