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1.1 Introduction

How many interactive products are there in everyday use? Think for a minute about what you use in a typical day: cell (mobile) phone, computer, remote control, coffee machine, ATM, ticket machine, printer, iPod, calculator, GPS, DVD, computer game … the list is endless. Now think for a minute about how usable they are. How many are actually easy, effortless, and enjoyable to use? Some like the iPod are a joy to use. Others, like the data projector that does not see a person's laptop when connecting it, can be very frustrating. Why is there a difference?


Cover of INTERACTION DESIGN: beyond human-computer interaction, 3rd Edition


This is a great section