Money on the move workload, usability and technology acceptance of second-screen atm-interactions

Authors:
Georg Regal;Marc Busch;Stephanie Deutsch;Christina Hochleitner;Martin Lugmayr;Manfred Tscheligi
Affiliations:
CURE Center for Usability Research & Engineering, Vienna, Vienna, Austria;CURE Center for Usability Research & Engineering, Vienna, Vienna, Austria;CURE Center for Usability Research & Engineering, Vienna, Austria;CURE Center for Usability Research & Engineering, Vienna, Austria;CURE Center for Usability Research & Engineering, Vienna, Vienna, Austria;CURE Center for Usability Research & Engineering, Vienna & University of Salzburg, Salzburg, Austria
Venue:
Proceedings of the 15th international conference on Human-computer interaction with mobile devices and services
Year:
2013

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Abstract

In this paper we compare one single-screen touch interaction with an automated teller machine (ATM) against two alternative second-screen ATM interactions using a smartphone. In an experimental laboratory study, those three ATM interactions were compared by means of workload (NASA-TLX), usability (SEQ, UMUX) and technology acceptance (selected TAM3-scales and additional scales for trust and security) in a randomized, controlled within-subjects design (n=24). In one smartphone ATM interaction the Personal Identification Number (PIN) was entered on the mobile phone, in the other smartphone ATM interaction the PIN was entered on the PIN-pad of the ATM. The results indicate that overall second-screen ATM interaction all interaction done on the mobile phone -- performed best.