An organized set of words or phrases that is used to organize information so that it can be found more easily. In the specific field of a website, it is a structured and hierarchical list of categories or keywords under which to classify the content. The construction of taxonomies involves carrying out four processes: delimitation of the area of knowledge that the taxonomy will represent, extraction of the set of terms, control of these to choose the most appropriate, and creation of the organizational structure of the terms or categories.
Hitting the definition of the most appropriate taxonomies as the basis for the information architecture of a website is a key factor in usability and positioning. A taxonomy is also the process of categorizing content, that is, of organizing it into groups.