ASSETS'11 Doctoral Consortium
43
Disabled ‘R’ All Bridging the gap between Health and Situational Impairments Hugo Nicolau [email protected] Prof. Joaquim Jorge
-
Upload
hugo-nicolau -
Category
Technology
-
view
336 -
download
0
Transcript of ASSETS'11 Doctoral Consortium
Disabled ‘R’ All
Bridging the gap between Health and Situational Impairments
Hugo Nicolau [email protected]
Prof. Joaquim Jorge
Increasingly popular
Powerful tools
Always near us
@ Home
@ Work
Outdoors
In car
@ Coffee shop
@ Subway
And many many others …
Many contexts
CONTEXT
Overload
Leading to …
Situationally-Induced Impairments and Disabilities [Sears, 2003]
Motor capabilities
Loss of physical stability
Brewster, 2002
Mizobuchi et al., 2005
Lin et al., 2007
Schildbach and Rukzio, 2010
Bergstrom-Lehtovirta et al., 2011
Same old challenges
Brown, 1992
Vanderheiden, 1993
Edwards, 1995
Poulson et al. 1996
Trewin and Pain, 1999
Do they share …
Similar problems? [Yesilada et al., 2010]
Do they benefit from …
Similar solutions?
Goal
Technology Transfer
HIID SIID solutions
Health-Induced Impairments and Disabilities
Situational-Induced Impairments and
Disabilities
Knowledge sharing and reuse
“Reinventing the wheel”
More and better research
Cost and availability
New connotation
Solutions designed for health-induced
impairments can be applied to situational-
induced impairments increasing the users’
performance, by assessing their capabilities
within real mobile contexts.
Hypothesis
“
”
APPROACH
Workplan
Development
Similar problems?
Similar solutions? Evaluation
Which solutions?
Users’ characterization
HIID SIID
Similar problems?
Text-Entry
Capture abilities
Differences and Similarities
Workplan
SIID
Development
Similar problems?
Similar solutions? Evaluation
Which solutions?
Users’ characterization
HIID
SIID Results
3 Walking conditions seated, slow walking, normal walking (2 steps / sec)
3 Hand postures one-hand/two-hand portrait; two-hand landscape
Major Results:
Error rate increases with mobility
Substitutions are the most common
error type (7%)
93% are due to poor aiming
Right-key substitution
HIID Procedure
Elderly 60 – 80 years old
Tremor disorders Age related, Action tremor, Postural tremor, Essential tremor
Characterize users’ tremor Accelerometer, questionnaires, spiral test, medical diagnosis
Larger screen sizes
Workplan
HIID SIID
Development
Similar problems?
Similar solutions? Evaluation
Which solutions?
Users’ characterization
Mobile prototypes
Filters e.g. [Trewin, 2002]
Orthographic correctors e.g. [Kane et al., 2008]
Adaptive keyboards e.g. [Merlin and Raynal, 2010]
Alternative techniques e.g. [Wobbrock et al., 2003]
Text-entry Solutions
Workplan
HIID SIID
Development
Similar problems?
Similar solutions? Evaluation
Which solutions?
Users’ characterization
Mobile prototypes
Hypothesis validation and Guidelines
1. Relationship between physical and situational impairments
2. Guidelines to transfer solutions between user groups
3. Transferability Index
Expected Results
Questions to the Consortium
Is this a valid approach (technology transfer)?
Should I develop novel solutions?
? ? ?
?
Discussion
