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Semantic-Based Navigation in Open Spaces 285
Figure 10-10. Example of a simple sitemap.
Figure 10-11 outlines the typical browsing process in a faceted browser, which corresponds
to the steps performed during view-based search:
1. Query – users typically select facets and restrictions as long as they match their perceived
(and known) information needs.
2. Selection – once the set of available options is exhausted or the users cannot think of
any more criteria, they examine the search results and select promising results for further
navigation.
3. Navigation – detailed information about “good” results can be retrieved and a navigation
session via their properties or associated resources can be initiated (e.g., showing
associated resources or comparing similar ones).
4. Query modification – users can relax the query by removing restrictions and repeating
the process from step 1.
In addition to faceted navigation, contemporary faceted browsers support additional features
for simple “processing” of the displayed data (search results):
− Simple sorting of instances based on one given attribute (e.g., name, price or weight,
screen size, popularity).
− The comparison of several selected instances and their attributes in a table.
− Different views which are either more or less detailed, with or without images and
with a selectable number of simultaneously displayed results.