Applications
Originally the term taxonomy referred to the classifying of living organisms like cats (now known as alpha taxonomy); however, the term is now applied in a wider, more general sense and now may refer to a classification of things, as well as to the principles underlying such a classification.Almost anything — animate objects, inanimate objects, places, concepts, events, properties, and relationships — may be classified according to some taxonomic scheme.
The term taxonomy may also apply to relationship schemes other than parent-child hierarchies, such as network structures with other types of relationships. Taxonomies may include single children with multi-parents, for example, "Car" might appear with both parents "Vehicle" and "Steel Mechanisms"; to some however, this merely means that 'car' is a part of several different taxonomies.
A taxonomy might also be a simple organization of kinds of things into groups, or even an alphabetical list. However, the term vocabulary is more appropriate for such a list. In current usage within "Knowledge Management", taxonomies are seen as less broad than ontologies as ontologies apply a larger variety of relation types.
Mathematically, a hierarchical taxonomy is a tree structure of classifications for a given set of objects. It is also named Containment hierarchy. At the top of this structure is a single classification, the root node, that applies to all objects. Nodes below this root are more specific classifications that apply to subsets of the total set of classified objects. So for instance, in common schemes of scientific classification of organisms, the root is called "Organism" followed by nodes for the taxonomic ranks: Domain, kingdom, phylum, class, etc.
Taxonomy and mental classification
Some have argued that the human mind naturally organizes its knowledge of the world into such systems. This view is often based on the epistemology of Immanuel Kant. Anthropologists have observed that taxonomies are generally embedded in local cultural and social systems, and serve various social functions. Perhaps the most well-known and influential study of folk taxonomies is Émile Durkheim's The Elementary Forms of Religious Life.Various taxonomies
In phylogenetic taxonomy (or cladistic taxonomy), organisms are classified into clades, which are discovered by grouping taxa using derived traits. By using clades as the criteria for separation, cladistic taxonomy, using cladograms, can categorize taxa into unranked groups.
In numerical taxonomy or taximetrics, the field of solving or best-fitting of numerical equations that characterize all measurable quantities of a set of objects is called cluster analysis.
Non-scientific taxonomy
Other taxonomies, such as those analyzed by Durkheim and Lévi-Strauss, are sometimes called folk taxonomies to distinguish them from scientific taxonomies that claim to be disembedded from social relations and thus objective and universal.
The neologism folksonomy should not be confused with "folk taxonomy" (though it is obviously a contraction of the two words). Those who support scientific taxonomies have recently criticized folksonomies by dubbing them "fauxonomies" (French word "faux" means "false").
The phrase "enterprise taxonomy" is used in business to describe a very limited form of taxonomy used only within one organization. An example would be a certain method of classifying trees as "Type A", "Type B" and "Type C" used only by a certain lumber company for categorising log shipments.
See also
- Bloom's Taxonomy
- Carolus Linnaeus, the father of systematics
- Categorization
- Celestial Emporium of Benevolent Recognition, a fictional Chinese encyclopedia with an "impossible" taxonomic scheme.
- Chresonym
- Cladistics, the most prominent of several forms of phylogenetic systematics
- Folksonomy
- Gellish English dictionary / Taxonomy, in which the concepts are arranged as a subtype-supertype hierarchy.
- History of plant systematics
- Hypernym
- Jean-Baptiste Lamarck
- Knowledge representation
- Linnaean taxonomy
- Nosology
- Ontology
- Phylogenetic
- Biological classification
- Sibley-Ahlquist taxonomy
- SOLO Taxonomy
- Species problem
- Systematics
- Taxocene
External links
- Hjørland: Scientific classification and taxonomy. IN: The epistemological Lifeboat
- Utter freedom via tagging and social constructs
- Wikispecies Main Page
- Integrated Taxonomic Information System
- Taxonomy Browser of National Center for Biotechnology Information
- Library of Taxonomy Resources
- Metadata? Thesauri? Taxonomies? Topic Maps! - Making sense of it all
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Last updated on Tuesday July 22, 2008 at 19:20:28 PDT (GMT -0700)
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