What users really need
Revisiting the not-so-great design of machines we use every day
Vlad Ayukaev
42

Point 3 should really be all you need. I love the simplicity of using the underground here in London. No need to care about zones*, you simply touch in and touch out, and your card is charged based on your actual travel. Simple and effective.

(* to optimise travel costs, you might actually care about zones and take a longer routes instead of costlier more direct routes, but that’s not necessary)

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