Contrary to Expectations - Simon Harper
Contrary to Expectations - Simon Harper
Contrary to Expectations - Simon Harper
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<strong>Contrary</strong> <strong>to</strong><br />
<strong>Expectations</strong><br />
<strong>Simon</strong> <strong>Harper</strong><br />
Digital Economy Inclusion Cluster<br />
Manchester - 13/14th Nov 2008<br />
Human Centred Web Labora<strong>to</strong>ry
Human Centred Web<br />
• Getting Beyond Constraint<br />
• Access and Accessibility<br />
• Pin-Point solutions<br />
• Tailored solutions<br />
• On-Mass Distributions<br />
• Knowing about constraint is<br />
<strong>to</strong> know better about<br />
general-case<br />
Human Centred Web Labora<strong>to</strong>ry (http://hcw.cs.manchester.ac.uk/)<br />
2
Purpose<br />
• Show how Our work overlaps<br />
• Influence your work by our work<br />
• Confluence of constraint, constrained<br />
environments, World Wide Web, and<br />
human behaviour<br />
Human Centred Web Labora<strong>to</strong>ry (http://hcw.cs.manchester.ac.uk/)<br />
3
People<br />
• Difficult<br />
• No-100%, No Absolutes<br />
• Difficult <strong>to</strong> Understand<br />
• Difficult <strong>to</strong> Predict<br />
• Difficult <strong>to</strong> Work With<br />
• In short a COMPLEX<br />
SYSTEM<br />
Human Centred Web Labora<strong>to</strong>ry (http://hcw.cs.manchester.ac.uk/)<br />
4
Communities<br />
• Work communities; geographic<br />
communities; cultural communities<br />
• All with complex interplay<br />
• Nothing is Universally ‘correct for<br />
everyone’<br />
• Tasks are mostly done differently unless<br />
people are forced<br />
Human Centred Web Labora<strong>to</strong>ry (http://hcw.cs.manchester.ac.uk/)<br />
5
Heterogeneity<br />
• Support complexity by<br />
embracing<br />
heterogeneity<br />
• The Webs strength is in<br />
its heterogeneity<br />
• Its evolution behaves<br />
more like an organism<br />
• It has hegemony<br />
precisely because of it’s<br />
ability <strong>to</strong> change<br />
Human Centred Web Labora<strong>to</strong>ry (http://hcw.cs.manchester.ac.uk/)<br />
6
View from Accessibility<br />
• About constraint;<br />
extreme users and<br />
extreme situations;<br />
individualism; flexibility;<br />
adaptability<br />
• Unexpected Behaviour<br />
gets the job done<br />
• <strong>Contrary</strong> <strong>to</strong> <strong>Expectations</strong><br />
Human Centred Web Labora<strong>to</strong>ry (http://hcw.cs.manchester.ac.uk/)<br />
7
Think Different!<br />
<strong>Contrary</strong> <strong>to</strong> <strong>Expectations</strong><br />
• Lessons from Accessibility<br />
*<br />
Visual Complexity<br />
* Aesthetics<br />
*<br />
Blind Users<br />
*<br />
Mobiles / Mo<strong>to</strong>r Impairment<br />
* Page Rendering 8<br />
Human Centred Web Labora<strong>to</strong>ry (http://hcw.cs.manchester.ac.uk/)
Visual Complexity<br />
7 (+|-) 2<br />
George A Miller - Psychological Review 1956<br />
The Magical Number Seven, Plus or Minus Two: Some<br />
Limits on Our Capacity for Processing Information<br />
Human Centred Web Labora<strong>to</strong>ry (http://hcw.cs.manchester.ac.uk/)<br />
9
Visual Complexity<br />
Human Centred Web Labora<strong>to</strong>ry (http://hcw.cs.manchester.ac.uk/)<br />
9
Visual Complexity<br />
7 (+|-) 2<br />
George A Miller - Psychological Review 1956<br />
The Magical Number Seven, Plus or Minus Two: Some<br />
Limits on Our Capacity for Processing Information<br />
3 (+|-) 2<br />
support for ‘Progressive Disclosure’<br />
Human Centred Web Labora<strong>to</strong>ry (http://hcw.cs.manchester.ac.uk/)<br />
9
Aesthetics<br />
Aesthetics ≠ Accessible<br />
Human Centred Web Labora<strong>to</strong>ry (http://hcw.cs.manchester.ac.uk/)<br />
10
Aesthetics<br />
Aesthetics ≠ Accessible<br />
Human Centred Web Labora<strong>to</strong>ry (http://hcw.cs.manchester.ac.uk/)<br />
10
Aesthetics<br />
Aesthetics = Accessible<br />
Human Centred Web Labora<strong>to</strong>ry (http://hcw.cs.manchester.ac.uk/)<br />
10
Blind Users<br />
Audio Landscapes <strong>to</strong> understand usage<br />
Compared with Sighted Usage<br />
Human Centred Web Labora<strong>to</strong>ry (http://hcw.cs.manchester.ac.uk/)<br />
11
Blind Users<br />
Human Centred Web Labora<strong>to</strong>ry (http://hcw.cs.manchester.ac.uk/)<br />
11
Page Rendering<br />
• Pulling apart Pages<br />
*<br />
*<br />
Good for Blind Users<br />
Good for Mobile Users<br />
• Identify Block Model for DOM<br />
• Assign Roles from On<strong>to</strong>logy <strong>to</strong> CSS<br />
Elements<br />
• Transform the Page<br />
Human Centred Web Labora<strong>to</strong>ry (http://hcw.cs.manchester.ac.uk/)<br />
12
Mobiles / Mo<strong>to</strong>r<br />
900<br />
840<br />
800<br />
700<br />
600<br />
500<br />
400<br />
300<br />
294<br />
667<br />
585566569<br />
DDI<br />
DNI<br />
MNI<br />
200<br />
100<br />
0<br />
5.88<br />
0<br />
6.43<br />
Total time<br />
(sec.)<br />
Total<br />
keystrokes<br />
Correction<br />
time (sec.)<br />
Human Centred Web Labora<strong>to</strong>ry (http://hcw.cs.manchester.ac.uk/)<br />
13
• SCWeb 2.0<br />
*<br />
Older Users<br />
* Hesitancy<br />
* Stress<br />
* Reassurance<br />
New Work<br />
• Holistic Interface Experimentation<br />
*<br />
Older Users<br />
* Hardware, Agent, Content 14<br />
Human Centred Web Labora<strong>to</strong>ry (http://hcw.cs.manchester.ac.uk/)
PARTY?<br />
• Constrained Behaviour on the Web<br />
• Cross-Cutting Methodologies<br />
• Usability Labs<br />
• Observational Partners<br />
• Henshaws, AccessSUMMIT, & Age Concern<br />
• W3C Membership<br />
• Accessibility Tools Framework<br />
Human Centred Web Labora<strong>to</strong>ry (http://hcw.cs.manchester.ac.uk/)<br />
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Thanks!<br />
• simon.harper@manchester.ac.uk<br />
• http://hcw.cs.manchester.ac.uk/<br />
• feed://hcw-eprints.cs.man.ac.uk/cgi/latest_<strong>to</strong>ol?output=RSS2<br />
Human Centred Web Labora<strong>to</strong>ry (http://hcw.cs.manchester.ac.uk/)<br />
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