A taxonomy is a hierarchical classification system. It organizes items into ranked groups, from broad categories down to specific instances. For example, the Linnaean taxonomy classifies living organisms, starting with kingdoms and progressing through phylum, class, order, family, genus, and species.
Such structured classification offers significant advantages. It facilitates clear communication by providing a standardized framework for identifying and discussing specific entities. It also enables efficient information retrieval and fosters a deeper understanding of the relationships between different elements within the system. Historically, taxonomies have been crucial for the development of scientific fields like biology and information science. Their principles continue to underpin modern knowledge organization systems.