PRODUCT TRACING SYSTEM, PRODUCT TRACING SERVER AND CONTROL METHOD FOR PRODUCT TRACING SERVER

摘要

PPROBLEM TO BE SOLVED: To collect trace forward information of each product 30 in a multistage production system 10. PSOLUTION: In a trace forward information collection device 50, a difference means 51 generates difference information Df for trace forward related to combination of an identifier IDo of a parent product and an identifier IDo of a child product. A reception means 52 receives trace forward information TFc from a product tracing server 32 related to a downstream side production stage 23 using the product related to IDo as a component or a raw material of its own product through a communication path 43. An update means 53 generates an initial value of trace forward information TFb on the basis of Df, and updates TFb on the basis of the trace forward information TFc. A transmission means 54 transmits TFb to the product tracing server 32 related to an upstream side product stage 21 for producing the product related to an identifier IDi through the communication path 43 as TFc of the product tracing server 32 related to the upstream side production stage 21. PCOPYRIGHT: (C)2007,JPO&INPIT