Developing and Creatively Leveraging Hierarchical Metadata and Taxonomy
http://www.boxesandarrows.com/archives/developing_and_creatively_leveraging_hierarchical_metadata_and_taxonomy.php

Ricci, Christian
Boxes and Arrows
2004

Abstract:

In content metadata and hierarchies, you will often find a goldmine of implicit and explicit data that you can leverage to creatively contextualize content. After a brief introduction on taxonomy and metadata, this article focuses on finding and utilizing such relationships in hierarchies.