Specifications

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choice and the mental processes they go through when attempting to
solve a problem.
Task Selection
This evaluation is interested in finding out how easy it is for the
user to mentally map what they wish to achieve to the functionality of
the Proxima remote control and menu interface. This study hopes to
assess how intuitive the system is for the user, and how easy it is for
the user to read from the interface the solution for a particular task.
Because of this it was important to phrase the wording of the tasks
asked of the user in a manner that reflected the desired outcome
rather than the procedure the user would have to complete.
Each task is presented to the user as an operation they have
been asked to complete. For example “ the volume on the projector
needs to be adjusted, please access volume control and raise the
volume” rather than “ either by using the remote control or accessing
the integrated menu, find volume control and adjust it”. This gives
the user a target that is based on real world situations that they
would encounter in their day-to-day use of the system. This method
also avoids presenting the user with too much information about the
functionality of the system or about how the user is supposed to
complete a task.
The Proxima projector offers separate different functions on the
integrated menu to those accessible directly from the remote control.
Baring this in mind, it was necessary to construct tasks that