ACQUIRE IDENTIFIER OF IDENTIFICATION-TARGET
COMPUTER SYSTEM
TRANSMIT ACQUIRED IDENTIFIER TO IDENTIFICATION JUDGEMENT COMPUTER SYSTEM
COMPARE TRANSMITTED IDENTIFIER WITH
IDENTIFIER REGISTERED IN REGISTRATION
PORTION
JUDGE WHETHER COMPUTER SYSTEM HAVING
TRANSMITTED IDENTIFIER IS REGISTERED
COMPUTER SYSTEM OR NOT
UPDATE IDENTIFIER IF THERE IS A CHANGE OF
IDENTIFIER IN COMPUTER SYSTEM HAVING
TRANSMITTED IDENTIFIER
