To search a corresponding product without requiring times and labors for quick processing when an order change or the like is generated in the product after arrival of the product related to a DP bag.

DP bag information (bar code) imparted to the DP bag flowing in each production process of a laboratory factory is read by a handy terminal 22a or a bar code reader 20A of terminal equipment 20 in the each production process, the DP bag information is transmitted to a control server 30, and information as to the order change or the like is registered in the control server together with the DP bag information when the order change or the like is generated. When the control server 30 receives the DP bag information from the terminal equipment 20, the server 30 determines whether the information is consistent with the DP bag information of the order change or the like registered in the control server or not, the server outputs processing information for the order change or the like to the terminal equipment transmitted with the DP bag information, when consistent, and the server informs an input person in charge of information that the product of which the DP bag information is read in the present is the product of the order change or the like.

COPYRIGHT: (C)2004,JPO