Chapter 5
Assessing Usability
The
preceding chapters
examined software user guides with a view to
improving their usability. Iconic Linkage was proposed as one method of
improving the usability of user guides. However, a crucial part of usability
engineering is being able to assess the effects
of any strategy aimed at
improving usability. This chapter deals primarily with an empirical study
conducted to test the effect of Iconic Linkage in a software user guide un-
der conditions representative of real-world usage. A crucial part of such an
undertaking is examining the various methods and procedures commonly
used in studies of this nature. The chapter begins by
examining a range of
data collection methods used in usability studies and proceeds to select
those which are compatible with assessing the usability of a printed user
guide. To gain a better insight into usability testing involving users, we will
also look at a number of previous usability studies.
We will look at how a model for conducting
the empirical experiments
was developed including hypothesis, evaluation criteria, methods, materials
and data analysis models. To conclude, this chapter
will discuss and evaluate
the findings of the empirical study.
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