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Classification scheme (information science)
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<h2 id="in-linguistics">In linguistics</h2> <p>In <a href="/facts/Linguistics/oQuamvf2">linguistics</a>, <a href="/facts/Subordinate/mYJyqFrG">subordinate</a> concepts are described as <a href="/facts/Hyponym/bjxUuoRb">hyponyms</a> of their respective superordinates; typically, a hyponym is 'a kind of' its superordinate.<a class="footnote-ref" id="fnref:1" href="#fn:1"><sup>1</sup></a> </p> <h2 id="benefits-of-using-classification-schemes">Benefits of using classification schemes</h2> <p>Using one or more classification schemes for the classification of a collection of objects has many benefits. Some of these include: </p> <ul><li>It allows a user to find an individual object quickly on the basis of its kind or group.</li> <li>It makes it easier to detect duplicate objects.</li> <li>It conveys <a href="/facts/Semantics/1L4WwLAP">semantics</a> (meaning) of an object from the definition of its kind, which meaning is not conveyed by the name of the individual object or its way of spelling.</li> <li>Knowledge and requirements about a kind of thing can be applied to other objects of that kind.</li></ul> <h2 id="kinds-of-classification-schemes">Kinds of classification schemes</h2> <p>The following are examples of different kinds of classification schemes. This list is in approximate order from informal to more formal: </p> <ul><li><a href="/facts/Thesaurus/w7xnH66H">thesaurus</a> – a collection of categorized concepts, denoted by words or phrases, that are related to each other by narrower term, wider term and related term relations.</li> <li><a href="/facts/Taxonomy_(general)/QRvFI267">taxonomy</a> – a formal list of concepts, denoted by controlled words or phrases, arranged from abstract to specific, related by subtype-supertype relations or by superset-subset relations.</li> <li><a href="/facts/Data_model/j1YyzpJ3">data model</a> – an arrangement of concepts (entity types), denoted by words or phrases, that have various kinds of relationships. Typically, but not necessarily, representing requirements and capabilities for a specific scope (application area).</li> <li><a href="/facts/Network_(mathematics)/kw3eIBUe">network (mathematics)</a> – an arrangement of objects in a random graph.</li> <li><a href="/facts/Ontology_(computer_science)/SQlhl6lp">ontology</a> – an arrangement of concepts that are related by various well defined kinds of relations. The arrangement can be visualized in a <a href="/facts/Directed_acyclic_graph/k6zq1os9">directed acyclic graph</a>.</li></ul> <p>One example of a classification scheme for <a href="/facts/Data_element/jtyoAIAd">data elements</a> is a <a href="/facts/Representation_term/clVjSMY5">representation term</a>. </p> <h2 id="see-also">See also</h2> <ul><li><a href="/facts/ISO%2fIEC_11179/vPsvIhuN">ISO/IEC 11179</a></li> <li><a href="/facts/Faceted_classification/4jNTPVMC">Faceted classification</a></li> <li><a href="/facts/Metadata/qt35z79C">Metadata</a></li> <li><a href="/facts/Ontology_(computer_science)/SQlhl6lp">Ontology (computer science)</a></li> <li><a href="/facts/Representation_class/v3jB50qm">Representation class</a></li> <li><a href="/facts/Representation_term/clVjSMY5">Representation term</a></li> <li><a href="/facts/Simple_Knowledge_Organisation_System/xuB6A34d">Simple Knowledge Organisation System</a></li> <li><a href="/facts/Semantic_spectrum/JWGYuBze">Semantic spectrum</a></li></ul> <h2 id="external-links">External links</h2> <ul><li><a href="https://stats.oecd.org/glossary/detail.asp?ID=358">OECD Glossary of Statistical Terms – Classification Schemes</a></li> <li><a href="http://standards.iso.org/ittf/PubliclyAvailableStandards/c035345_ISO_IEC_11179-2_2005(E).zip">ISO/IEC 11179-2:2005 Metadata registries (MDR) – Part 2: Classification</a></li> <li><a href="http://metadata-standards.org/metadata-stds/Document-library/Meeting-reports/SC32WG2/2002-05-Seoul/WG2-SEL-018%20ISO-IEC-11179-2%20presentation-to-open-forum.ppt">Nancy Lawler's presentation on Classification Schemes</a> <a href="https://web.archive.org/web/20070928151647/http://metadata-standards.org/metadata-stds/Document-library/Meeting-reports/SC32WG2/2002-05-Seoul/WG2-SEL-018%20ISO-IEC-11179-2%20presentation-to-open-forum.ppt">Archived</a> 2007-09-28 at the <a href="/facts/Wayback_Machine/nmQ3a6JC">Wayback Machine</a></li></ul> <h2 id="references">References</h2> <ol> <li id="fn:1"><p>Keith Allan (2002, p. 260), Natural Language Semantics, Blackwell Publishers Ltd, Oxford, ISBN 0-631-19296-4. <a href="/wiki/ISBN_(identifier)" target="_blank">/wiki/ISBN_(identifier)</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> </ol>