The first step to creating a usable product is ensuring users can find what they need. You should not ignore the importance of good navigation. To facilitate Web site navigation, present users with multiple levels of information. Use a hierarchical information architecture. This type of architecture works much like a multi-level table of contents in a book.
Users are more likely to find what they seek when pages contain several levels of information.
In contrast, when users can see only one level of information at a time, they often have trouble figuring out where to go next to find the information they seek because they have to guess at what the layers contain below the one they currently see. Adequately descriptive content links can help users predict where those links lead. Remember that not everyone will think of the same thing for every word or phrase you use to describe a link. One way to account for any possible ambiguity in terminology is to use extensive cross-linking so even if users end up in the wrong place, they can get to the right place a different way. Category links are equally important since they define a site s hierarchy.