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If you want to check the vaccination you take the number and ask a mapping/discovery service for the location of the database that knows more about it.
Runaway dog scenario in detail
Tasso is a non-profit association. The owner of a pet can register his animal there. The pet gets a RFID chip implanted. The RFID Number is then linked with the address of the owner.
If the dog runs away and is found e.g. a veterinarian can read the RFID code. When he gives this code to Tasso they can inform the pet owner.
(Identity) owner
dog
owner of the object
dog owner
Registration
The registration happens manually. A Tasso veterinarian associates the RFID with a certain owner/pet
Identification
(When the dog runs away) Another veterinarian scans the RFID number
Mapping
The RFID has an identifier (RFID-ID). When Tasso decides to use this RFID they put the RFID-ID in their namespace. When the veterinarian asks another service provider for this RFID-ID there will be no result.
Authentication
No authentication / Someone could put the RFID chip into another animal
Authorization
No authorization /everyone can read the RFID chip
Policy
A policy decision takes places manually with in Tasso. They decide whether the owner is called or they provide the phone number according to the “policy” of the owner.