System Usability Evaluation
Goals
Strategy
Objectives
Levels of Evaluation
Measurement Approaches
Formality and Informality of Methods and Rationale
Societal and Cultural Factors
Desired Results (Information Sought from Evaluation)
Goals
- Determine if T/TAC staff can easily upload their training content
to the T/TAC Online site and uncover any potential difficulties with
the upload process.
- Determine the best practices for the inclusion of multi-media by
establishing which content formats will best meet the needs of the staff
and the site's audience.
- Assess the effectiveness of a pre-production workflow process designed
to assist the T/TAC staff in the preparation of their content for uploading.
Strategy - Phase One
- Schedule six T/TAC staff at the GMU T/TAC office to serve
as participants in a usability test. In order to test the guidance provided
by the tutorial and quick start guides, three users will perform their
tasks without these guides and three will be allowed to use these guides.
- Instruct each participant to use the site and the content (i.e., text
& multi-media) that we will supply to perform a scripted set of typical
user tasks.
- Observe and record participants progress and difficulties, if any.
- Participants will complete a survey on their satisfaction with using
the site.
- Report on the results from all the participants' interactions with
the site.
Strategy - Phase Two
- By uploading and converting various multi-media formats determine
the best practices and potential problems in adding audio or video content
to
webshops and
mini-courses.
- Assess whether Flash or any other format might be better suited
to the needs of our audiences than other multi-media formats.
- Assess what procedures are the most appropriate for making PowerPoint
presentations accessible (i.e., section 508 compliant).
Strategy - Phase Three
- Give the description of a pre-production workflow to usability test
participants.
- Ask them to try the process with their own content.
- Collect and report on their responses to a survey on its use.
Objectives
- Identify any aspects of the Online Training section of the T/TAC Online
system that could be improved.
- Provide best practices for selecting and utilizing media formats in
webshops and mini-courses.
Levels of Evaluation
- Phase one will be a Level 1 & Level 3 evaluation.
- Phase two isn't covered by Kirkpatrick's levels of evaluation.
- Phase three will be a Level 1 evaluation.
Measurement Approaches
- Observers of participants during the usability testing will
gather data on the time required for each task, the number & nature
of errors committed, and the comments provided by participants.
- Data on time required to convert and upload various multi-media formats
will be examined in determining best multi-media formats to employ.
- Survey responses will be collected from participants after they have
examined and tried the pre-production workflow guidance that we will
provide to them after the usability test.
Formality and Informality of Methods and Rationale
- Phase 1 will use comparisons of pre and post performance via numeric
results for task times and error rates, as well as survey results. The
availability of the tutorial and quick start guide will separate the
pre & post groups. This phase will employ quantitative survey
measures of satisfaction with using the site.
- Phase 2 will use numeric comparisons on times required to convert,
upload, and download various media formats.
- Phase 3 will employ quantitative survey measures of satisfaction with
the pre-production workflow guidance.
Societal and Cultural Factors
Resources
- Most end users (e.g., teachers, educational professionals) and all
staff have internet access
- Staff have training and experience in developing
some types of electronic training materials
Constrains
- Increasing requirements from the state & federal government (e.g.,
SOLs, NCLB) mean greater need for staff to provide training
- Reduced
funding for education restricts travel of staff
- Staff do not have training
in developing training for exclusively online delivery
- Internet access
is low bandwidth for end users, perhaps for some staff
Desired Results (Information Sought from Evaluation)
This evaluation should answer these questions:
- Have the interface enhancements
successfully addressed the previous perception of system users that
the system was difficult to use?
- Can users easily determine what action they are to
take and in what sequence, both in planning their webshops or mini-courses
and in uploading them?
- Does the tutorial effectively prepare
users to build webshops or mini-courses?
- Is the quick guide an adequate
reference for the target population?
- Are there other enhancements that
could be made to the software interface to improve usability?
- What are the best media formats and multi-media practices for this
population of uses?
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