Answer – Numerous design and usability guidelines suggested that a site map is necessary for every web site. A site map that mirrors the site structure well can help the user to reduce the feeling of being lost during navigation, to understand the organization of the site, and to search for required information quickly and accurately. However, site maps were not as successful as they had been expected, and users often overlooked site maps or were reluctant to use them.

This may be due to the fact that most site maps were hidden within the web site and users were required to locate the hyperlink to access the site map page before they could use the site map. Also, users were required to switch between the site map and the web site when using the site map to navigate. It has been shown that a constant site overview is beneficial for users when performing information-seeking tasks.

Providing users with a visible site map, therefore, may Encourage users to use it and to take advantage of it. Another advantage of using the site map page during navigation is that it provides shortcuts to the important pages of a site so that one can have access to those pages easily with just a single click. However, a heavily interlinked site may cause disorientation.