Phase I Evaluation Result Sampler (cont.)
Fab:
? System performance improves over time as hypothesized
? System’s profiles accurately predict user preferences
? Initial from-zero learning phase not tolerable
Sound-based interfaces:
? Blind users’ reactions very encouraging
? Multiple speakers in a single interface is useful
? Relative differences are difficult to use
? Attitude/aptitude around sound in interfaces very different for blind vs. sighted users