Case Study – bluespot MAP Picture copyright © Wall AG 2008

Research Setup Learnings from several smaller case studies Mapping of hypotheses on large case studies -> Evaluation according learnings - Pilot studies Mobile Prosumer RMV Retail ÖPNV Integrated Ubicomp System Public Space Case 1 Case 2 Case 3 Case 4 Case 5… easymeeting

Example: Decision Trees as Starting Point (Ice cream) (Norman 1999) a1 a2 a3 a4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 b Shallow decision tree Narrow decision tree First decision Further choices 1 2 a exit exit exit exit exit

Combined to Ubicomp Design – Criteria Sets

Prototype and location in meeting room (Organization 1)

The paper prototype

Example: Refill coffee Touch & receive Coffee

IT architecture overview Nokia 6131 NFC Discover tag Perform action according stored ID SMS2EMail Gateway Convert incoming SMS to email and forward to predefined adress Microsoft Exchange Server Receive e-Mail on Server and process rule E-Mail Client Webbrowser Receive e-Mail or SMS on local client and webbrowser (ticketing) Initiate real world process User interaction Technical process User interaction Mobile phone

Evaluation *(Venkatesh 2004) n=37 with n1=22 (O1) and n2=15 (O2) Sample number Random Sample type Two organizations with 25 employees (O1) up to 300 employees (O2) Universe Quantitative: Interval 5-item-scale (Mostly UTAUT* Items) Qualitative: Questionnaire survey Measuring method December 19 th 2006 to February 6 th 2007 Period Personal interview with questionnaire Method of data collection Quantitative/qualitative survey Research framework

Evaluation

Every great advance in science has issued from a new audacity of imagination . John Dewey Contact Florian Resatsch [email_address]