Accessibility and usability
-
Upload
cykon-remalliv -
Category
Technology
-
view
113 -
download
3
description
Transcript of Accessibility and usability
![Page 1: Accessibility and usability](https://reader036.fdocuments.net/reader036/viewer/2022062617/54c1e97c4a7959ea3a8b4589/html5/thumbnails/1.jpg)
Accessibility and Usability of
Website
![Page 2: Accessibility and usability](https://reader036.fdocuments.net/reader036/viewer/2022062617/54c1e97c4a7959ea3a8b4589/html5/thumbnails/2.jpg)
DEPARTMENT OF CHIEF MINISTER
![Page 3: Accessibility and usability](https://reader036.fdocuments.net/reader036/viewer/2022062617/54c1e97c4a7959ea3a8b4589/html5/thumbnails/3.jpg)
Accessibility and
Usability and its
Methods
![Page 4: Accessibility and usability](https://reader036.fdocuments.net/reader036/viewer/2022062617/54c1e97c4a7959ea3a8b4589/html5/thumbnails/4.jpg)
211,945 people living in Northern Territory Australia
“ ”― ABS 2013
![Page 5: Accessibility and usability](https://reader036.fdocuments.net/reader036/viewer/2022062617/54c1e97c4a7959ea3a8b4589/html5/thumbnails/5.jpg)
51.7 % are male
48.3 % are female
![Page 6: Accessibility and usability](https://reader036.fdocuments.net/reader036/viewer/2022062617/54c1e97c4a7959ea3a8b4589/html5/thumbnails/6.jpg)
21.9% are people
who’s age is 50 and above
Majority of people are with
disabilities that has unpaid assistance.
![Page 7: Accessibility and usability](https://reader036.fdocuments.net/reader036/viewer/2022062617/54c1e97c4a7959ea3a8b4589/html5/thumbnails/7.jpg)
ACCESSIBILITYis very important for government website
Therefore,
![Page 8: Accessibility and usability](https://reader036.fdocuments.net/reader036/viewer/2022062617/54c1e97c4a7959ea3a8b4589/html5/thumbnails/8.jpg)
Is your website
accessible?
![Page 9: Accessibility and usability](https://reader036.fdocuments.net/reader036/viewer/2022062617/54c1e97c4a7959ea3a8b4589/html5/thumbnails/9.jpg)
“ Accessibility allows people with disabilities access the web and website should be compatible to
different browsers and work on different devices ”― Hudson 2011
![Page 10: Accessibility and usability](https://reader036.fdocuments.net/reader036/viewer/2022062617/54c1e97c4a7959ea3a8b4589/html5/thumbnails/10.jpg)
“Websites are designed for different users and flexible enough to meet user’s needs,
with or without disabilities.”― Henry 2006
![Page 11: Accessibility and usability](https://reader036.fdocuments.net/reader036/viewer/2022062617/54c1e97c4a7959ea3a8b4589/html5/thumbnails/11.jpg)
Australian Legal Requirements
for Accessibility
![Page 12: Accessibility and usability](https://reader036.fdocuments.net/reader036/viewer/2022062617/54c1e97c4a7959ea3a8b4589/html5/thumbnails/12.jpg)
“ People with disabilities will receive the same rights to
access information and services ”― Disability Discrimination Act 1992
![Page 13: Accessibility and usability](https://reader036.fdocuments.net/reader036/viewer/2022062617/54c1e97c4a7959ea3a8b4589/html5/thumbnails/13.jpg)
Required to submit to
― Australian Government Web Guide
Reports and updates“
OOC and SIGB in compliance to WCAG 2.0
guidelines ”
![Page 14: Accessibility and usability](https://reader036.fdocuments.net/reader036/viewer/2022062617/54c1e97c4a7959ea3a8b4589/html5/thumbnails/14.jpg)
Access to information, communications and services,
including internet, is a human right.“ ”
― Australian Government Web Guide
![Page 15: Accessibility and usability](https://reader036.fdocuments.net/reader036/viewer/2022062617/54c1e97c4a7959ea3a8b4589/html5/thumbnails/15.jpg)
Accessibility Guidelines
![Page 16: Accessibility and usability](https://reader036.fdocuments.net/reader036/viewer/2022062617/54c1e97c4a7959ea3a8b4589/html5/thumbnails/16.jpg)
WAI AccessibilityGuidelines and Techniques
• Authoring Tool
Accessibility Guidelines
(ATAG)
• User Agent Accessibility
Guidelines (UAAG)
• Web Content Accessibility
Guidelines (WCAG)
― Henry 2006
![Page 17: Accessibility and usability](https://reader036.fdocuments.net/reader036/viewer/2022062617/54c1e97c4a7959ea3a8b4589/html5/thumbnails/17.jpg)
Four Principles of WCAG 2.0
• Perceivable
• Operable
• Understandable
• Robust
![Page 18: Accessibility and usability](https://reader036.fdocuments.net/reader036/viewer/2022062617/54c1e97c4a7959ea3a8b4589/html5/thumbnails/18.jpg)
Evaluation Methods and Tools
![Page 19: Accessibility and usability](https://reader036.fdocuments.net/reader036/viewer/2022062617/54c1e97c4a7959ea3a8b4589/html5/thumbnails/19.jpg)
Manual EvaluationExperts examine each pages of the
website and gives feedback(Hassanzadeh and Navidi 2010)
![Page 20: Accessibility and usability](https://reader036.fdocuments.net/reader036/viewer/2022062617/54c1e97c4a7959ea3a8b4589/html5/thumbnails/20.jpg)
Automatic EvaluationHas tools that scan and evaluate each pages that corresponds to W3C Guidelines or DDA
(Hassanzadeh and Navidi 2012)
![Page 21: Accessibility and usability](https://reader036.fdocuments.net/reader036/viewer/2022062617/54c1e97c4a7959ea3a8b4589/html5/thumbnails/21.jpg)
User ExperienceExperts will provide the users a series of tasks to perform
and once the user operated the website, difficulties or confusion starts to appear.
(Hassanzadeh and Navidi 2012)
![Page 22: Accessibility and usability](https://reader036.fdocuments.net/reader036/viewer/2022062617/54c1e97c4a7959ea3a8b4589/html5/thumbnails/22.jpg)
Discount Accessibility MethodIt is a combination of automatic and manual method.
(Hassanzadeh and Navidi 2012)
![Page 23: Accessibility and usability](https://reader036.fdocuments.net/reader036/viewer/2022062617/54c1e97c4a7959ea3a8b4589/html5/thumbnails/23.jpg)
Fully Integrated Accessibility MethodCombination of all methods that involves experts
![Page 24: Accessibility and usability](https://reader036.fdocuments.net/reader036/viewer/2022062617/54c1e97c4a7959ea3a8b4589/html5/thumbnails/24.jpg)
Usability
![Page 25: Accessibility and usability](https://reader036.fdocuments.net/reader036/viewer/2022062617/54c1e97c4a7959ea3a8b4589/html5/thumbnails/25.jpg)
How users use web
― Steve Krug 2006
![Page 26: Accessibility and usability](https://reader036.fdocuments.net/reader036/viewer/2022062617/54c1e97c4a7959ea3a8b4589/html5/thumbnails/26.jpg)
We don’t read pages.
We scan them.
![Page 27: Accessibility and usability](https://reader036.fdocuments.net/reader036/viewer/2022062617/54c1e97c4a7959ea3a8b4589/html5/thumbnails/27.jpg)
We don’t make optimal choices.
We satisfice.
![Page 28: Accessibility and usability](https://reader036.fdocuments.net/reader036/viewer/2022062617/54c1e97c4a7959ea3a8b4589/html5/thumbnails/28.jpg)
We DONT figureout how things work.
We muddle through.
![Page 29: Accessibility and usability](https://reader036.fdocuments.net/reader036/viewer/2022062617/54c1e97c4a7959ea3a8b4589/html5/thumbnails/29.jpg)
International Usability Standards
![Page 30: Accessibility and usability](https://reader036.fdocuments.net/reader036/viewer/2022062617/54c1e97c4a7959ea3a8b4589/html5/thumbnails/30.jpg)
Promotes best practice, independent, encourages consistency and it means business.”
“
― Travis 2008
![Page 31: Accessibility and usability](https://reader036.fdocuments.net/reader036/viewer/2022062617/54c1e97c4a7959ea3a8b4589/html5/thumbnails/31.jpg)
Dimensions of Usability
• Efficiency
• Effectiveness• Satisfaction
― Preece, Rogers, Sharp 2012
![Page 32: Accessibility and usability](https://reader036.fdocuments.net/reader036/viewer/2022062617/54c1e97c4a7959ea3a8b4589/html5/thumbnails/32.jpg)
Krug’s Law of Usability
![Page 33: Accessibility and usability](https://reader036.fdocuments.net/reader036/viewer/2022062617/54c1e97c4a7959ea3a8b4589/html5/thumbnails/33.jpg)
Don’t Make Me Think”“―Steve Krug
2000
![Page 34: Accessibility and usability](https://reader036.fdocuments.net/reader036/viewer/2022062617/54c1e97c4a7959ea3a8b4589/html5/thumbnails/34.jpg)
It doesn’t matter how many times I have to click
”
“
―Steve Krug 2000
as long as each click is mindless, unambiguous choice
![Page 35: Accessibility and usability](https://reader036.fdocuments.net/reader036/viewer/2022062617/54c1e97c4a7959ea3a8b4589/html5/thumbnails/35.jpg)
Omit Needless Words
”“―Steve Krug
2000
![Page 36: Accessibility and usability](https://reader036.fdocuments.net/reader036/viewer/2022062617/54c1e97c4a7959ea3a8b4589/html5/thumbnails/36.jpg)
Evaluation
![Page 37: Accessibility and usability](https://reader036.fdocuments.net/reader036/viewer/2022062617/54c1e97c4a7959ea3a8b4589/html5/thumbnails/37.jpg)
Analytical Evaluationusually performed by experts and
no users involved―Te’eni, Carey &
Zang 2007
![Page 38: Accessibility and usability](https://reader036.fdocuments.net/reader036/viewer/2022062617/54c1e97c4a7959ea3a8b4589/html5/thumbnails/38.jpg)
Analytical Evaluation Techniques• Heuristic
Evaluation• Guideline Review
• Cognitive Walk-Through• Pluralistic Walk-Through• User mode-based Analysis
• Framework based Inspection
―Te’eni, Carey & Zang 2007
![Page 39: Accessibility and usability](https://reader036.fdocuments.net/reader036/viewer/2022062617/54c1e97c4a7959ea3a8b4589/html5/thumbnails/39.jpg)
Empirical Evaluation
Involves users and gathering information on how users interact
to the computer or system
―Te’eni, Carey & Zang 2007
![Page 40: Accessibility and usability](https://reader036.fdocuments.net/reader036/viewer/2022062617/54c1e97c4a7959ea3a8b4589/html5/thumbnails/40.jpg)
Empirical Evaluation Techniques• Survey or Questionnaire• Interview
• Lab-Controlled Experiment
• Field Studies
―Te’eni, Carey & Zang 2007
![Page 41: Accessibility and usability](https://reader036.fdocuments.net/reader036/viewer/2022062617/54c1e97c4a7959ea3a8b4589/html5/thumbnails/41.jpg)
Assessing the Department of Chief Minister Website
![Page 42: Accessibility and usability](https://reader036.fdocuments.net/reader036/viewer/2022062617/54c1e97c4a7959ea3a8b4589/html5/thumbnails/42.jpg)
Recollect & Reflect
Need Finding Resources Participants
Pilot Testing
User Testing