Specifications

The Interactive Media lab environment was less than ideal for

the purpose of a “Think Aloud” evaluation. The reason being that the

lab is constantly in use by up to twenty people at once. The rest of

our colleagues did their best to accommodate us during the testing,

but it was a distraction to our users, as they felt scrutinised not only

by the evaluation team and its recording equipment but also by the

sheer number of people in the room. We would have preferred a more

controlled environment where the user would feel more comfortable

and less observed.

The user was free to sit or stand during the evaluation exercise.

However, all the users took the option to stand, mainly because of the

position of the projector in relation to the screen and the fact that the

(functional) infrared receiver is located at the rear of the projector and

the projector is mounted on the ceiling. It is worth noting that there is

another identical infrared receiver on the front of the projector – but it

does not appear to function on the projector which was evaluated. The

infrared sensor on the back of the projector is highlighted in the

picture below.

The user was read the attached consent form that explained the

study and, most importantly, that the Proxima projector is being

examined not the user. It also explained that if the user is not happy

at any point they may choose to terminate the study.