International Children's Digital Library: Facet browsing ZUI

Peter V. pointed to the IDCL browser, a Java application that offers an interface for browsing an ebook catalog. What's unique about the catalog is that it offers a type of zoomable interface for browing categories such as About (Subject), Genre, Setting, Characters, etc. Clicking one facet drills you deeper into that facet tree, that is to say, reveals the sub-facets/categories and/or reveals the items within that node in a tiny thumbnail results window at top that you can expand to review hits. Each term you pick -- terms are the end-points, the buttons that don't have further sub-division -- is added to your collection (on top of the worm graphic) to show that you've combined terms in your search. You can click on one of the terms in that area to remove it from your search. The results window shows how your search terms have narrowed your results.

You have to have the Java Virtual Machine plug in installed to use this application. To start browsing by facet, click "Find books in category".

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what's more

it is a true faceted browser in that it lets you combine categories: all books with animals that are square shaped for example.