Specifications

17
In addition, we provided an introduction on the next page
preceding the task list, which we asked the users to please read first.
It appeared like this: -
“PLEASE READ FIRST:
Hello, and thank you for coming along to take part in this cooperative
evaluation. The tasks, which you will be asked to perform, are listed
below. Please take as long as you need to complete each task. This is
not a test of your abilities or performance; this session is designed to
evaluate the usability and functional design of the projector.
Please be encouraged to make comments or ‘Think Aloud’ as you
complete the task list, your opinion is just as important as your actions
to this evaluation. It would be excellent if you could vocalise your
thoughts and feelings while interacting with the projector. It is expected
to take no longer than ten minutes to complete the task list.
If you need assistance, there is a selection of ‘Help’ pages on the desk
next to you which you may consult at any time or you can utilise a PDF
of the projectors Operators Manual on the computer in front of you. You
may now begin the task list using the remote control provided.”
The purpose of this was three-fold:
• Make the user as comfortable as possible within the constraints
of the evaluation environment,
• Encourage the user to think aloud and vocalise their actions,
feelings and opinions during the evaluation,
• Direct them to where they could get help if they require it,
rather than asking a member of the evaluation team for help.