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A very recent technique comes pretty close to the ideal system. As soon as a
hand approaches the door knob of the car, the locking system checks whether
or not there is an encoded chip nearby and, if so, unlocks the door. A fi nger print
scan at the gearshift can start the engine. The system is nearly inexistent for the
user, but the desired functionality is there.
Look at the systems in your environment and think about how these systems
have evolved over the years. They normally aspire to becoming ideal systems.
The idea of an ideal system was fi rst expressed by Genrich Saulowich Altshuller,
who founded the theory of inventive problem solving (TIPS) in 1956 (see box
below). Searching for the ideal system is aspiring for simplicity. Or in the words of
Goethe: ??? All intelligent thoughts have already been thought; what is necessary
is only to try to think them again. ???
Now, let ??™ s apply this technique to our system. We fi nd that the user of our system
is not keen on carrying around a customer card, or memorizing a secret code.


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