Between the Tag and the Screen - Arkitektur- og designhøgskolen i ...

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Between the Tag and the Screen - Arkitektur- og designhøgskolen i ...

5 B C H A P T E R 3 : M A I N A P P R O A C H E S A N D M E T H O D SCustom NFC phone prototypesThe next prototype sessions focused on taking the interaction mechanismsfrom the previous prototype to the mobile phone so as to explore them further(Figure 3.5). The prototypes were used to better understand the differentaspects of SR-RFID that had emerged in the study. Several prototypes weredesigned and implemented and reflected upon. The creation of theseprototypes allowed us to test, develop and reflect upon SR-RFID as material.We collaboratively chose five design cases to develop demonstrators. Theapplications comprised an exhibition information system for Thinglink(Thinglink, 2011) (a small, Web-based company dealing with data attachedto things): an egg timer, an alarm clock, an office answering machine and asystem for associating data between tags. We developed the threeapplications using JavaME and a proprietary NFC library from Nokia.1) Thinglink allows people to create online portfolios that relate to physicalthings. Each physical thing gets a unique code, which can be used to accessthe content in a Web browser. Our prototype allowed users to engage withthe digital content by using an RFID-enabled mobile phone to scan RFIDtags attached to a number of things registered in Thinglink. The Thinglinkinterface had two interactional techniques associated with one tag: a) byselecting the tag, an information page directly appeared on the phone’sdisplay with no extra key presses, and b) on holding the phone toward the tagit would, after a short pause, use the phone to play an audio stream.2) The second application dealt with packaging design enhanced by NFC(Figure 3.5). We placed an RFID tag inside a redesigned egg carton. The tagadded an egg boiling timer functionality that was accessed only throughtangible interaction using the phone. It had three aspects: a) the egg timerstarted a countdown to an alarm while the phone was resting over the tag; b)if the phone was removed before the time limit, the application stopped andc) removing the phone after the alarm rang would end the ringing.3) An alarm clock application was designed to be attached to a bedside table(Figure 3.6). Rather than using the RFID tag to set the internal alarm clockon the phone, our application allowed further functionality accessed throughtangible interaction. This operated as follows: a) the alarm clock was set andactivated by resting the phone on the tag; b) upon removing the phone, theapplication would be deactivated after 10 seconds; c) during the shutdownperiod, the application showed an interface allowing the setting of the defaultalarm time, and pressing any key aborted application shutdown; d) when thealarm rang, picking up the phone would end the ringing and e) placing thephone back on the tag after ringing initiated a snooze function.57

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