Classification is a process related to categorization, the process in which ideas and objects are recognized, differentiated and understood. Classification is the grouping of related facts into classes. It may also refer to: Contents 1Business, organizations, and economics 2Mathematics 3Media 4Science 5Organizations involved in classification 6Other uses 7See also 8External links Business, organizations, and economics Classification of customers, for marketing (as in Master data management) or for profitability (e.g. by Activity-based costing) Classified information, as in legal or government documentation Job classification, as in job analysis Standard Industrial Classification, economic activities Mathematics Attribute-value system, a basic knowledge representation framework Classification theorems in mathematics Mathematical classification, grouping mathematical objects based on a property that all those objects share Statistical classification, identifying to which of a set of categories a new observation belongs, on the basis of a training set of data Media Classification (literature), a figure of speech linking a proper noun to a common noun using the or other articles Decimal classification, decimal classification systems Document classification, a problem in library science, information science and computer science o Classified information, sensitive information to which access is restricted by law or regulation to particular classes of people o Library classification, a system of coding, assorting and organizing library materials according to their subject Image classification in computer vision Motion picture rating system, for film classification Science Scientific classification (disambiguation) o Biological classification of organisms o Chemical classification o Medical classification, the process of transforming descriptions of medical diagnoses and procedures into universal medical code numbers o Taxonomic classification, also known as classification of species Cladistics, an approach using similarities Organizations involved in classification International Society for Knowledge Organization Other uses An industrial process such as mechanical screening for sorting materials by size, shape, and density, etc. Civil service classification, personnel grades in government Classification of swords Classification of wine Classification society, a non-governmental organization that establishes and maintains technical standards for the construction and operation of ships and offshore structures Locomotive classification Product classification Security classification, information to which access is restricted by law or regulation See also Class (disambiguation) Classified (disambiguation) Classifier (disambiguation) Data classification (disambiguation) Order Taxonomy External links Look up classification, classifications, classifies, classify, or classifying in Wiktionary, the free dictionary. Media related to Classification at Wikimedia Commons This article includes a list of related items that share the same name (or similar names). If an internal link incorrectly led you here, you may wish to change the link to point directly to the intended article.