Individual interviews are conducted to assess of how user friendly
a Web site is, prior to launching a site. The interviewees often are
asked to complete some type of task (such as searching for information)
that reflects the intended use of the Web site and to give feedback
on the process (qualitative data).
Usability
is a combination of factors that affect the user’s experience with
the site, including:
- Ease
of learning: How fast can a user who has never seen the user
interface before learn it sufficiently well to accomplish
basic tasks?
- Efficiency
of use: Once an experienced user has learned to use the site, how
fast can he or she accomplish tasks?
- Memorable:
Can the user remember enough about the site to use it effectively
the next time or does
the user have to start over
again
learning everything?
- Error
frequency and severity: How often do users make errors while using
the site, how serious are
these errors,
and how do users recover
from these errors?
- User
satisfaction: How much does the user like using the site?
Interviews can be conducted in person (with a computer), or the interviewee
can do tasks at home on their computer and complete a paper questionnaire.
Some interview facilities have the capacity to videotape both the respondent
and the screen, so that the interaction can be recorded.