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Layla AlSalhie, Wea’am AlRashed and Areej AlWabil
Software Engineering Department, College of Computer and Information
Sci...
2
@HCI_Lab
August 7, 2015
Sustained Attention
1. Lack of a uniformly agreed objective method for attention assessment
2. Patients need to travel to ...
Research Objectives
Gain an insight into the usability of technologies designed for assessing
patients' sustained attentio...
Three interrelated Work Phases (WP)
5
Research Methodology
Research Methodology
WP1. Evaluating the usability of existing methods and technologies that are
being used in the field o...
WP2. Usability Engineering Process for Neurorehabilitation BCI prototype
1. Usability Engineering during the development p...
User Testing – UAT & Expert Reviews
WP3. Evaluating the usability of the BCI application
with User Acceptance Testing UAT ...
Attention Assessment Technologies
9
Usability Evaluation Sessions
10
RATING DESCRIPTION
0 I don't agree that this is a usability problem at all
1
Cosmetic pro...
Usability Evaluation Sessions
11
Heuristic Evaluation - Results
Severity {0} {1} {2} {3} {4} Total
Play Attention 1 5 9 7 0 22
Tarkeezy 2 0 13 14 1 30
Atte...
Heuristic Evaluation - Results
13
Evaluator Experience
Num of
Programs {0} {1} {2} {3} {4}
E1 High 3 3 8 15 9 0
E2 Low 3 2...
Conclusion
Most usability issues were categorized as major usability problems.
The aggregate heuristic evaluation method w...
Thank You
15
Areej AlWabil
aalwabil@ksu.edu.sa
Software Engineering Department, College of Computer and Information
Scienc...
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Usability Heuristics for the Design of Interactive Attention Assessment and Rehabilitation Technologies

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Presentation on Aug 7, 2015 in the 17th International Conference on Human-Computer Interaction #HCII2015 in Los Angeles, CA, USA. The paper was presented in the Universal Access in Human-Computer Interaction track in the "Novel technologies for speech, language, attention and child development" session which was chaired by Prof. Margherita Antona, Foundation for Research & Technology - Hellas (FORTH), Greece http://2015.hci.international/friday

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Usability Heuristics for the Design of Interactive Attention Assessment and Rehabilitation Technologies

  1. 1. Layla AlSalhie, Wea’am AlRashed and Areej AlWabil Software Engineering Department, College of Computer and Information Sciences, King Saud University, Riyadh, Saudi Arabia August 7, 2015
  2. 2. 2 @HCI_Lab August 7, 2015
  3. 3. Sustained Attention 1. Lack of a uniformly agreed objective method for attention assessment 2. Patients need to travel to the hospital/clinic for assessment 3. Patients are often not engaged with the assessment tasks 3
  4. 4. Research Objectives Gain an insight into the usability of technologies designed for assessing patients' sustained attention Evaluate the usability of a BCI-based application for sustained attention 4
  5. 5. Three interrelated Work Phases (WP) 5 Research Methodology
  6. 6. Research Methodology WP1. Evaluating the usability of existing methods and technologies that are being used in the field of sustained attention assessment and rehabilitation 1. Semi-structured interviews 2. Usability inspection methods on emerging technologies 6
  7. 7. WP2. Usability Engineering Process for Neurorehabilitation BCI prototype 1. Usability Engineering during the development process 2. Emotiv Epoch EEG BCI headset/Windows platform 3. Accuracy of Attention Assessment 4. Intensive testing sessions 7 Emotiv EPOC Headset Image Source emotive.com Research Methodology
  8. 8. User Testing – UAT & Expert Reviews WP3. Evaluating the usability of the BCI application with User Acceptance Testing UAT methods Part I Users in the Context of Rehabilitations 1. Evaluation sessions in realistic user settings 2. Accuracy and reliability of the assessment and patient engagement 3. Critical Incident Method Part II Expert Evaluations 8 Center for ADHD children
  9. 9. Attention Assessment Technologies 9
  10. 10. Usability Evaluation Sessions 10 RATING DESCRIPTION 0 I don't agree that this is a usability problem at all 1 Cosmetic problem only: need not be fixed unless extra time is available on project 2 Minor usability problem: fixing this should be given low priority 3 Major usability problem: important to fix, so should be given high priority 4 Usability catastrophe: imperative to fix this before product can be released Nielsen’s severity scale The evaluation process for the three attention assessment and rehabilitation programs
  11. 11. Usability Evaluation Sessions 11
  12. 12. Heuristic Evaluation - Results Severity {0} {1} {2} {3} {4} Total Play Attention 1 5 9 7 0 22 Tarkeezy 2 0 13 14 1 30 Attentive I 0 0 9 13 2 24 Total 3 5 31 34 3 76 Percentage % 3.9% 6.5% 40.7% 44.7 3.9% 100% 12 Heuristic evaluation results
  13. 13. Heuristic Evaluation - Results 13 Evaluator Experience Num of Programs {0} {1} {2} {3} {4} E1 High 3 3 8 15 9 0 E2 Low 3 2 0 14 22 4 E3 Low 2 4 5 12 12 2 E4 Medium 2 5 5 7 3 0 E5 Low 1 2 1 1 3 4 Usability issues per evaluators’ experience
  14. 14. Conclusion Most usability issues were categorized as major usability problems. The aggregate heuristic evaluation method was found to be effective as a tool for usability inspections. Findings suggest that this method was effective in identifying usability issues that affect the users’ performance and subjective satisfaction. 14
  15. 15. Thank You 15 Areej AlWabil aalwabil@ksu.edu.sa Software Engineering Department, College of Computer and Information Sciences, King Saud University, Riyadh, Saudi Arabia

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