Enriching Web Information Scent for Blind Users

Lecturer at The University of Manchester
Nov. 26, 2009
Enriching Web Information Scent for Blind Users
Enriching Web Information Scent for Blind Users
Enriching Web Information Scent for Blind Users
Enriching Web Information Scent for Blind Users
Enriching Web Information Scent for Blind Users
Enriching Web Information Scent for Blind Users
Enriching Web Information Scent for Blind Users
Enriching Web Information Scent for Blind Users
Enriching Web Information Scent for Blind Users
Enriching Web Information Scent for Blind Users
Enriching Web Information Scent for Blind Users
Enriching Web Information Scent for Blind Users
Enriching Web Information Scent for Blind Users
Enriching Web Information Scent for Blind Users
Enriching Web Information Scent for Blind Users
Enriching Web Information Scent for Blind Users
Enriching Web Information Scent for Blind Users
Enriching Web Information Scent for Blind Users
Enriching Web Information Scent for Blind Users
Enriching Web Information Scent for Blind Users
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Enriching Web Information Scent for Blind Users

Editor's Notes

  1. or added values
  2. assumptions: all checkpoints, test cases have the same impact on the user
  3. ACC: tags: summary for tables, attributes: alt for images and combination: formssome studies on: even if web pages are accessible they are not usableUSA: “click here” statements, shortcuts to skip to main content
  4. there’s certainly an overlap
  5. atomic rulesrecommendations: highly subjective issues, AT dependant issues. Violating them does not have a strong effect on accessibility but maybe on usability
  6. LSP overcomes traditional aggregation methodstrong, medium, weakρ(d) values are obtained elsewhere –rho-INTUITIVE AND EXPLICIT WAY
  7. Example to illustrate how it worksAll test cases have to be satisfied to meet the whole checkpointHowever the uncertainty on semi-automatic issues leads us to consider the medium quasidisjunctionamong earl:semi-automaticBetween checkpoints there also a sense of simultaneity to satisfy the whole guideline
  8. capture ofget their impressions, free to comment .subjective data
  9. as expected by blind users
  10. why relevance was not considered: in this scenario it would lead to the solution
  11. as expected by blind users
  12. Even if they were not told to, in the after task forms users gave their opinion.changed their minds those that did first the task with annotated links in the first scenario. it was curious. surprisinglyTECHNIQUE PREVAILS OVER THE SCORES
  13. At first sightEven if there’s a peak for mid values there’s not a general agreementUsefulness and perception of score validity is higher for the browsing task, at least it is more balanced
  14. results are inconclusiveand how some user changed their minds about scores