Table 1.

Existing applications investigated

Expected features	Qualitative research		Transcription and analysis	Usability testing	Screen casting
	ATLAS.ti	NVivo	Transana	Morae	Camtasia	Adobe Captivate	BB FlashBack
Handles input from 3 cameras or combined video	1 video file. Limited view	1 video file. Limited view	1 video file. Limited view	1 webcam	No	No	1 webcam
Computer screen capture	No	No	No	Yes	Yes	Yes	Yes
Fast setup for recording and data export	No recording element	No recording element	No recording element	Complex setup	Moderate setup, large data file	Moderate setup, large data file	Moderate setup, large data file
Coding and measuring of interactions	Codes segments. Manually measure.	Codes segments. Manually measure.	Codes video clip. No measure.	Codes video frame. Manually measure.	No coding. No measure.	No coding. No measure.	No coding. Manually measure.
Simultaneous viewing of multiple observations	Limited view. All in one channel	Limited view. Multiple channels	Limited view. All in one channel	Limited view. All in one channel	No	No	3 observations only
Easy to compare observational data	Using network diagrams	Using nodes or networks	Using codes, collections	Using tables, graphs	No	No	No
Standard output for UML diagrams	No	Need processing	No	Need processing	No	No	Only computer interactions