For the sake of
illustration, let??™s examine a few of the real-world usage scenarios
where physical cards are used:
Thomas works at a high-tech company. Every morning
he swipes his card key, and the built-in RFID identi?¬?es
him and grants him access to the building.
Katie is a university student and can get a bus pass
sticker for her ID card each quarter. When she wants to
take the bus, she just needs to show the pass to the
driver.
Scott stops by the corner store to buy some beer. First he
shows his driver??™s license to prove he is of legal drinking
age, and then he uses his debit card, along with a PIN, to
complete the purchase.
At the grocery store where Liz shops, they??™ve given her a
club card that she can use to get discounts on items she
buys. The store then tailors advertising to her based on
her shopping habits. The logo on the card serves as a
way for the store to advertise.
Of course, there are many more such examples, such as library
cards and all membership cards in general. What??™s striking is the
wide range of uses these cards can have, but they all exhibit a
similar routine in how they are managed and used. This has
great advantages when somebody is given a new card because
there is normally no learning curve.
Pages:
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294