Patent ID: 7284003

Claim:
A product lifecycle data management system comprising: a data processing terminal; an RFID tag; and a management server; wherein said data processing terminal comprises: a first input unit which inputs a first identifier of a product and a product related data of said product, a first memory unit which stores said first identifier and said product related data, a first communication unit which transmits said first identifier and said product related data to said RFID tag, a first display unit which displays a first process ending data received from said RFID tag, wherein said first process ending data indicates an end of data processing in said RFID tag, a first data processing unit which transmits said first identifier, said product related data and a first authentication key data received from said RFID tag to said management server, and said first display unit displays a second process ending data received from said management server, wherein said second process ending data indicates an end of data processing in said management server, said RFID tag comprises: a second memory unit which compares said first identifier received from said data processing terminal with a second identifier of said product, and stores said product related data received from said data processing terminal when said first identifier is the same as said second identifier, wherein said second identifier is stored previously in said second memory unit, a second data processing unit which generates said first process ending data, and a second communication unit which transmits said first process ending data and said first authentication key data, said first authentication key data having been updated to correspond to said second identifier previously stored in said second memory unit, said management server comprises: a third memory unit which compares a first set comprising said first identifier, and said first authentication key data received from said data processing terminal, with a plurality of second sets comprising a third identifier, and a second authentication key data corresponding to said third identifier for a plurality of products, the third memory unit storing said product related data when said one of said second sets is the same as said first set, said plurality of second sets being previously stored in said third memory unit, and a third data processing unit which generates and transmits said second process ending data to said data processing terminal.