(1) Record management production and operation

Record is the basic information in the construction of food traceability system, and it is to ensure that producers and operators truly record the information of all stages that consumers care about, so as to facilitate the inquiry and make consumers feel that producers and operators are responsible for food safety.

(2) Query management

Consumers can find the product serial number on the purchased product package, enter the serial number in the supermarket or on the computer at home, and get the relevant information about the production of this batch of products directly, and go back to the farm from the dining table to understand the complete production, transportation and sales process, so as to improve consumers' confidence in the products. This numbering system connecting producers and consumers, as an information query and retrieval tool that consumers can directly use, is one of the information technology cores of building the whole food traceability system.

(3) logo management

Food logo is the most important management information in the construction of food traceability system. Its basic function is to track and identify food. Food traceability requires that every node in the food supply chain should not only mark the products processed by itself, but also collect the existing marking information on the processed food raw materials, and mark all the information on the processed products for the next processor or consumer to use. This is like an interlocking chain. If any link is broken, the whole chain will be out of line, and the links between the cross-links in the supply chain are relatively fragile. This is implementation.