Information Architecture for the World Wide Web, Second Edition

Foreword

On the Web, if a site is difficult to use, most people will leave. On an intranet, if employees perform their tasks more slowly due to difficult design, the company bears the cost of the reduced productivity. In fact, I estimate that low intranet usability costs the world economy $100 billion per year in lost employee productivity. This may not be the most important problem facing the planet, but it’s not a trifling issue either.

Usability is an important, though not the only, determinant for the success of a web site or an intranet. Information architecture is an important, though not the only, determinant for the usability of a design. There are other issues, but you ignore information architecture at your peril.

Critics may say that users don’t care about information architecture. They don’t want to learn how a web site is structured; they just want to get in, get their task done, and get out. Users focus on tasks, not on structure. But it’s because users don’t care about the structure of a web site that it is so important to get the information architecture right in the design. If users did bother to study our web sites, they could surely learn how an obscure or illogical structure works and utilize that knowledge to improve their task performance. Humans are flexible creatures and can adapt to hostile environments if they choose to do so.

But since we know that users won’t spend time learning our information architecture, we have to spend resources to design the best ...