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. Author manuscript; available in PMC: 2009 Sep 2.
Published in final edited form as: Stud Health Technol Inform. 2009;143:322–327.

Table 1.

The number of usability problems found through usability testing by system, and the number and percentage of usability problems predicted by heuristic evaluation (separated into specific and general categories)

Number of
usability
problems …		 … found through
usability testing		 … predicted by heuristic violations
System Specific
(percentage)		 General
(percentage)		 Total (percentage of
usability problems)
EagleSoft 60 20 (77%) 6 (23%) 26 (43%)
PracticeWorks 44 0 (0%) 17 (100%) 17 (39%)
SoftDent 86 5 (15%) 34 (87%) 39 (45%)
Dentrix 96 41 (67%) 20 (33%) 61 (64%)
Total 286 66 (46%) 77 (54%) 143 (50%)