A system for naming and organizing a set of words or phrases, into groups that share similar qualities, used for organising information and primarily intended for browsing. In BIM contexts its classification of concepts and terminology according to a clear structure.
The term “Taxonomy” comes from terms “Taxos”, ordering and “nomos”, rule. ,
Taxonomy is very important for information and content management. Taxonomy helps in searching and re-purposing the content. Also supports a unifying language across organisations and general future-proofing of knowledge.
 Miquel Centelles. Taxonomies for categorization and organization in Web Sites, num. 3, 2005
 Rama krishna Rao, B., 2011. TAXONOMY CONSTRUCTION TECHNIQUES-ISSUES AND CHALLENGES.