Studying The Use of Handhelds To Control Smart Appliances. Jeffrey Nichols Carnegie Mellon University May 19, 2003. The Problem. Appliances are too complex. The Problem, cont. Each complex appliance has its own idiosyncratic interface! Home and Car Stereos Car Navigation Systems
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Carnegie Mellon University
May 19, 2003
Appliances are too complex
Separate the interface from the appliance!
Other applications and UI guidelines
Addresses idiosyncracy problem!
We initially designed paper-prototype interfaces for Palm
We later implemented interfaces for Microsoft’s PocketPC (simulated remote control).
Paper-PrototypePalm vs. Actual Appliance
Functional PocketPC vs. Actual Appliance
Users made five times the errors and needed help twice as often with the actual appliances!
All results significant (p < 0.001 for all)
All differences are significant (p < 0.05)
About ½ the time and ½ the errors!
Designed a XML-based Specification Lang
State Variables and Commands
Multiple labels are necessary
For enabling and structure
National Science Foundation
Pittsburgh Digital Greenhouse
PUC Project Members
Brad A. Myers
Thomas K. Harris