Heuristic evaluation has been shown to work with evaluators who
_are_not_experts_. (See Nielsen's old papers.) That's a big difference
between the two.
However, you have to have many more non-expert evaluators to find the
same number of usability problems when the evaluators are not experts in
either the domain of the product or usability as when the evaluators are
expert in both domain and usability ("double experts"). Usability folks
who are not expert in the domain are in-between the non-experts and the
double-experts.
There is also evidence that Heuristic Evaluation finds many "false
alarms", i.e., "problems" that, if effort is put into fixing them, do
not improve users' performance (see Bailey for that work).
Bonnie
Kishor Sonawane wrote:
Hi all,
In Heuristic evaluation, evaluator evaluates design with reference of
design principles to find out the usability issues.
How “Expert Review” is different from this? Is there any major
difference or it’s the same?
Thanks in advance.
Regards,
Kishor
http://perceivedesign.wordpress.com/
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