Census Bureau
Task 1: What does the W3C's Web Accessibility
Initiative (WAI) Priority 1 say about the use of frames? **
** The full report included the detailed analysis of 6 different user
tasks. I have posted only one to the Web.
Expected Results
The user should be able to easily locate the link to the W3C's WAI site.
On that site the W3C defines an accessibility guideline for the use of
frames. It states, "Title each frame to facilitate frame identification
and navigation". This isn't information that will be specifically
contained on the Usability Lab's Knowledge Base site, but having a obvious
and intuitive link to it is imperative. Currently the user must click
on "Accessibility" in the main navigation, and then locate the
link under "Guidelines and Checklists". Users will not find
a link to this information if they click on the "Guidelines"
in the main navigation. Something many users might likely do when searching
for the WAI's accessibility guidelines.
The following chart is a summary of the detailed
information below.
| User Group |
Importance |
Task Performance |
Time Performance |
User Satisfaction |
| Administrative applications designers and
developers |
2 |
75% |
< 60 seconds |
2 |
| Project Managers |
1 |
50% |
< 90 seconds |
1 |
| Hardware, software, Web site and intranet
site designers |
3 |
100% |
< 45 seconds |
3 |
| Hardware, software, Web site and intranet
site developers |
3 |
100% |
< 45 seconds |
3 |
| Hardware, software, Web site and intranet
site testers |
3 |
100% |
< 45 seconds |
3 |
| Persons responsible for any electronic product
design |
2 |
75% |
< 60 seconds |
2 |
| IBM fact finder contractors |
3 |
100% |
< 45 seconds |
3 |
| Census Bureau usability lab personnel |
3 |
100% |
< 30 seconds
|
3 |
Importance: The following scale for
importance will be used for all user groups.
- not important
- somewhat important
- extremely important
Task Performance: The following scale
will be used for all user groups.
- 100% - no more than 1 error*
- 75% - no more than 2 errors
- 50% - no more than 3 errors
*Errors would be wrong links clicked on, getting lost, having to use
the back button on the Web browser, etc.
Time Performance: All users of this
group must complete the task under this time.
User Satisfaction: The following scale
will be used for all user groups.
- not satisfied
- somewhat satisfied
- extremely satisfied
Questions that can be asked to the user upon completion
of the task:
(these apply to all user groups)
- What could be done to help you complete the task quicker?
- Were you satisfied with the task information you found?
- If not what would need to be done to make the information satisfactory
to you?
The following is an analysis of how this task applies to the various
Knowledge Base user groups.
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