This demonstrates a primitive form of
federation, where the merchant is just giving preferential
treatment to a customer who is a customer of a partner.
The auto club itself uses this card for authentication for
the services it provides to the cardholder in much the
same way that the wholesale club card issuer does but
often provides the service provider with additional
claims that the merchant doesn??™t receive. Information
Cards used this way could operate with complete parity
to their real-world counterparts, providing simple proof
that the user is a customer of a partner to receive a
bene?¬?t.
Driver??™s license or other government-issued ID. Cards
that provide validated identity information to a third
party. Because the government or agency that issues
these identities (the department of motor vehicles) has a
fairly reliable standard for validating the claims (crosschecking
with birth certi?¬?cates and other identi?¬?cation
documents), third parties can examine the claims when
the card is provided and base their business decisions on
them. The classic example of this is the ability to purchase
alcohol being restricted to a certain age.
Merchants use the driver??™s license to validate that the
age requirement is met, allowing the cardholder to proceed
with the transaction.
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