1. Disabled ‘R’ All
Bridging the gap between Health and
Situational Impairments
Hugo Nicolau
hman@vimmi.inesc-id.pt
Prof. Joaquim Jorge

2. Increasingly popular

3. Powerful tools

4. Always near us

5. @ Home

6. @ Work

7. Outdoors

8. In car

9. @ Coffee shop

10. @ Subway

11. And many many others …

12. Many contexts
CONTEXT

13. Overload

14. Leading to …
Situationally-Induced Impairments and Disabilities [Sears, 2003]

15. Motor capabilities

16. Loss of physical stability
Brewster, 2002
Mizobuchi et al., 2005
Lin et al., 2007
Schildbach and Rukzio, 2010
Bergstrom-Lehtovirta et al., 2011

17. Same old challenges
Brown, 1992
Vanderheiden, 1993
Edwards, 1995
Poulson et al. 1996
Trewin and Pain, 1999

18. Do they share …
Similar problems?
[Yesilada et al., 2010]

19. Do they benefit from …
Similar solutions?

20. Goal

21. Technology Transfer
HIID solutions SIID
Health-Induced Situational-Induced
Impairments and Impairments and
Disabilities Disabilities

22. Knowledge sharing and reuse

23. “Reinventing the wheel”

24. More and better research

25. Cost and availability

26. New connotation

27. Hypothesis
“
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.
”

28. APPROACH

29. Workplan
HIID SIID Users’
Similar problems?
characterization
Which solutions? Development
Similar solutions? Evaluation

30. Similar problems?

31. Text-Entry

32. Capture abilities

33. Differences and Similarities

34. Workplan
HIID SIID Users’
Similar problems?
characterization
Which solutions? Development
Similar solutions? Evaluation

35. 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

36. 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

37. Workplan
HIID SIID
Users’
Similar problems?
characterization
Which solutions? Development Mobile prototypes
Similar solutions? Evaluation

38. Text-entry Solutions
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]

39. Workplan
HIID SIID
Users’
Similar problems?
characterization
Which solutions? Development Mobile prototypes
Similar solutions? Hypothesis validation
Evaluation and Guidelines

40. Expected Results
1. Relationship between physical and
situational impairments
2. Guidelines to transfer solutions between
user groups
3. Transferability Index

41. Questions to the Consortium
Is this a valid approach (technology transfer)?
Should I develop novel solutions?
?
? ??

42. THE END
Hugo Nicolau
hman@vimmi.inesc-id.pt

43. Discussion