GVU Technical Report Number:
GIT-GVU-93-16
Title:
An Environment to Support User Interface Evaluation Using Synchronized
Video and Event Trace Recording
Authors:
Albert N. Badre
Scott E. Hudson
Paulo J. Santos
Abstract:
This paper presents a simple but very powerful technique to support user
interface evaluation along with a prototype open environment --
I-Observe, the Interface OBServation, Evaluation, Recording, and
Visualization Environment -- which supports a preliminary implementation
of this technique. This technique operates by recording user interface
sessions in multiple modalities, both as a trace of interesting events
and through video images. It then provides tools to allow the user
interface evaluator to combine these modalities, analyzing the event
stream to search for patterns of interesting or important user actions,
then using the recorded timestamps associated with these actions to present
only the sections of the video recording of interest. This allows, for
example, all places where the user invokes a help system or a particular
command to be observed without requiring the evaluator to manually search
the recording or sit through long sessions of unrelated interactions.
By combining the precise recording of automatic event trace capture with the
rich contextual information that can be captured in a video and audio
recording, this technique allows analyses to be performed that would not
be practical with either media alone.
Keywords:
User interface evaluation, evaluation support tools, event trace logging,
video-based user interface evaluation techniques
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