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278 CHAPTER 10 Usability testing

Computer

Door Microphone Camera
One-way mirror
Soundproof wall User

1 2 3
3 monitors:
(1) user’s screen, (2) user’s face, Image from
Door and (3) video mixer mixer projected
Video recorder onto wall

Observers sit/stand here
FIGURE 10.3
Potential layout for a single-participant usability lab.
From Lazar, J., 2006. Web Usability: A User-Centered Design Approach. Addison-Wesley, Boston.

Testing Room A Testing Room B Testing Room C
Mic 1 Mic 1 Mic 1
Participant Participant Participant
Mic 2 Mic 2 Mic 2
Workstation Workstation Workstation
Camera Camera Camera

Camera Camera Camera
Window Window Window

Video Monitors Video Monitors Video Monitors
Audio Mixer
Video Mixer Workstation Video Mixer Workstation Video Mixer Workstation

Observer Observer Observer

Observation/
Control Room
Video Recording Sound Video Recording Sound Video Recording Sound
FIGURE 10.4
Potential layouts for a multiuser usability lab.
From US Census Bureau.