Whether in China or in other countries in the world, knowledge changes the destiny, and human intelligence creates information technology, Beijing website construction Also, the planning information system can be realized in the following three forms.
（1） Manual processing mode
People collect, process, transmit, store and output data through pen and paper, supplemented by simple computing tools. The information processing uses abacus, calculator or mental arithmetic. The information storage medium basically uses paper media to make various reports or reports, which belongs to manual processing, and is the basic way to realize the current planning letter P. system in China.
（2） Computer processing mode
At this time, the information processing work in the plan management is processed by the computer from the At layer to the upper layer. The media for storing and transferring information are all magnetic media. This is an efficient way to realize the plan information system, but it requires more investment costs, and the establishment of the system requires various conditions.
（3） Mixed treatment mode
This is a transitional implementation method that has been adopted for quite a while. The so-called R combination refers to the combination of manual processing and computer processing. Generally, due to the restrictions of capital conditions or communication conditions, the computer processing mode cannot be completely implemented from bottom to top at the moment. Therefore, the information processing activities at a certain level of information systems or at a certain stage adopt manual processing mode, while most of the information processing activities of information systems above a certain level adopt computer processing, Information storage and transmission media are paper media and magnetic media.
This kind of mixed processing is often the way to realize computer processing in our country. Because of various conditions, it is impossible to achieve complete computer processing in all counties and units below the county level, cities and provinces in a few years. We often first realize the computer processing of information systems above the city and province level, It is appropriate that information systems at and below the county level have to be processed manually. We refer to the planning information system represented by the latter two processing methods as the computer-aided planning management information system, or the computer planning information system for short. Therefore, the main reason for adding the word "auxiliary" is that some non procedural and strategic decisions in the planning work are only made by people, and computers only play an auxiliary role in the planning management.
