The standard measure of success for a web site is traffic, the number of visitors a site gets and the frequency with which those visitors return. Raw traffic does not indicate succcess for all kinds of sites, but every site does need a single thing to be successful: a reason for people to visit it. Something people have a use for, whether it's information, a product, or another type of service. By providing something useful (the content) to a group of people (the target audience), you have the basis for a potentially successful site.
Information architecture is the process of defining and examining the target audience in order to structure the content to make it accessible to that audience. In other words, finding out who the target audience is, what they want, and how to make it easy for them to find what they want. This leads to user-centric site design, which is absolutely necessary in making a web site useful to users and keeping them on the site when a million other web sites are only a click away.
Here's a quick look at the information architecture process:
At the end of the information architecture process, the site will be planned out and optimized for the needs of the target audience so that the project can proceed smoothly into the next phase of design.
Parts of the content on this page are based on John Shiple's Information Architecture article on