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Before considering navigation options, it is highly recommended that you first outline you web site on paper. What are the major topic headings? What are the sub-units? How many layers or levels of content are there? With such a chart in hand, browse the samples below to select the most appropriate navigation technique. Page-turning navigation is appropriate if your design plan includes sequential, page-after-page information. Tab-stop navigation is more appropriate if your design includes hierarchical information with multiple sub-levels. To get a "feel" for effective navigation techniques, it is useful to study the strategies employed by others. Some strategies are effective, while others are confusing. After designing your web site, it is a good idea to conduct a field test or "usability test" with sample users. Observing, taping, or interviewing these users can reveal potential problems with your selected navigation strategy. NOTE: Click on any image below to enlarge the thumbnail. |
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| Menu-tree
navigation represents a technique whereby information is structured
under major topic headings and sub-headings. Users navigate down a particular
path/hierarchy and back out of that path using visible menus. The menu
and path remains visible and is evident at any point in the tree structure.
In the example screen shot at right (Williams-Sonoma),
the path selected
is then highlighted across a top-level menu bar, with the options for
various sub-levels available for selection. Click on the images for an
enlarged view. Notice how color and fading is used to highlight activated from deactivated menu items. |
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Tab-stop navigation represents a technique whereby information is again structured under major headings and sub-headings, but the user accesses that information using a file-folder tab-stop metaphor. The major tab headings are always visible. Click on the sample at right for an enlarged view. |
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Index
navigation represents a technique whereby information is structured
within an all-inclusive table of contents. All potential selections
are visible. Sites with vast information contents employ this method
so users will not be forced to "dig" through multiple levels of menus
to find a specific piece of information (search engines provide a related
option). As a result, the interface may be more usable, but tends to
look cluttered or "busy" from a visualization perspective. It is possible
to design by one of the prior navigation techniques (e.g, menu-tree),
then provide an index for those users who prefer this method of information
access. Click on the sample at right (Staples)
for an enlarged view. |
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Pull-Down
Menu navigation employs javascripting to direct users to different
parts of a web site. The old Volkswagen
samples at right are particularly confusing. On the main menu screen,
the user can choose pull-down selections from four main areas (i.e.,
cars, culture, commerce, and about us). Once a sub-topic is selected
from a pull-down menu, however, the user is not given any indication
of the sub-topic they have selected (i.e., the upper menu bar does not
indicate the selection, nor are titles provided). Further, more sub-sub-topic
menu options appear, creating a potentially confusing situation. |
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| The
navigation schemes above are text-based. Iconic navigation is
a technique where the user can select a visual representation of specific
items they wish to link to. Sometimes the icon is accompanied with a text
label, sometimes it is not. For clarity, both text and iconic representations
are recommended. When the main visual is selected, the subsequent, underlying
page should also contain the icon to signal the learner as to the selected
item. Notice in the first Land Rover example, how the visual item is selected from top. On the second screen, the selected icon is pulled over to far left and highlighted in red. Also, a text title cue is provided as to location (e.g., "Gear"). |
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| Page
Turning navigation is useful for creating tutorials or content structured
according to units or chapters. It may be difficult to create an entire
site with this navigation approach, but sections of a site are often accessed
in such a manner. Notice how the Science of Baseball site uses an outfield wall as a metaphor for their navigation bar with "next" and "back" buttons. Similarly, the Structures Around the World site uses a steel superstructure as a metaphor for their navigation bar with "next" and "back" buttons. Speaking of Metaphors, another common navigation approach is to structure content according to some familiar or everyday metaphor (e.g., virtual desk, map, or farm scene) and provide access to that information with related treatments (e.g., clicking to "open" a desk drawer or to enter a particular map or scene for specific content). For example, metaphors enable users to access geographic-related information via virtual maps, or art-related information in a virtual museum. Browse National Geographic's Xpeditions site to see how content is arranged around the metaphor of an exhibit hall. |
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| Combining navigation techniques may be accomplished with many of the above forms (e.g., hybrid form of menu-tree navigation and tab-stop navigation). In the first screen shot at right, Peets Coffee presents a main menu. When a main menu option is selected, a second level of menu options is presented, some of which have a third level of information accessed by tab stops. Note, the extraneous links on the side menu bars in addition to the main navigation system may be confusing. | |