by NICHOLAS C. ZAKAS
by PETER MORVILLE, JEFFERY CALLENDER
Faceted navigation may be the most significant search innovation of the past decade. It features an integrated, incremental search and browse experience that lets users begin with a classic keyword search and then scan a list of results. It also serves up a custom map that provides insights into the content and its organization and offers a variety of useful next steps. In keeping with the principles of progressive disclosure and incremental construction, it lets users formulate the equivalent of a sophisticated Boolean query by taking a series of small, simple steps. Learn how it works, why it has become ubiquitous in e-commerce, and why it’s not for every site.
Illustration: Kevin Cornell for A List Apart