Abstract: An egg search code, that can be used for accurately searching history information of an egg using a number of digits printable on the egg, is assigned to the egg, and the history information of the egg can be accurately identified based on the egg search code assigned to the egg. An unused egg search code out of the totality of egg search codes is determined and will be used as the egg search code to be assigned to the egg. The determined egg search code is assigned to all eggs having identical history information. The egg search code assigned to the egg is related to the egg history code and an egg collection date code, and is stored. The egg history code related to the egg collection date code and the egg search code is searched for, in compliance with a provision request, submitted from a consumer terminal, for history information, the provision request containing the egg collection date code and/or the egg search code.

Abstract: A code management system is provided for reducing an amount of data on a product identification number assigned to a product in traceability system and enabling to reduce an information management burden required for a history reference. In a weighing label attaching process, a main server distributes unused individual product code complying with a request from a weighing machine. The weighing machine creates and stores a weighing related information that relates a case code previously read to a weighing result (weight), a calculating result (price), a label code (a product identification information) determined as any of individual product codes, and a content of a label information. The main server requires the weighing related information to provide, complying with a request submitting the label code from a purchaser of the product. The weighing machine searches and transmits the weighing related information to the main server complying with the request from the main server.

Abstract: A code management system is provided for reducing an amount of data on a product identification number assigned to a product in traceability system and enabling to reduce an information management burden required for a history reference. In a weighing label attaching process, a main server distributes unused individual product code complying with a request from a weighing machine. The weighing machine creates and stores a weighing related information that relates a case code previously read to a weighing result (weight), a calculating result (price), a label code (a product identification information) determined as any of individual product codes, and a content of a label information. The main server requires the weighing related information to provide, complying with a request submitting the label code from a purchaser of the product. The weighing machine searches and transmits the weighing related information to the main server complying with the request from the main server.

Abstract: An egg search code, that can be used for accurately searching history information of an egg using a number of digits printable on the egg, is assigned to the egg, and the history information of the egg can be accurately identified based on the egg search code assigned to the egg. An unused egg search code out of the totality of egg search codes is determined and will be used as the egg search code to be assigned to the egg. The determined egg search code is assigned to all eggs having identical history information. The egg search code assigned to the egg is related to the egg history code and an egg collection date code, and is stored. The egg history code related to the egg collection date code and the egg search code is searched for, in compliance with a provision request, submitted from a consumer terminal, for history information, the provision request containing the egg collection date code and/or the egg search code.