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  2. Information system - Wikipedia

    en.wikipedia.org/wiki/Information_system

    An information system (IS) is a formal, sociotechnical, organizational system designed to collect, process, store, and distribute information. [1] From a sociotechnical perspective, information systems comprise four components: task, people, structure (or roles), and technology. [2]

  3. Cronquist system - Wikipedia

    en.wikipedia.org/wiki/Cronquist_system

    The Cronquist system is a taxonomic classification system of flowering plants.It was developed by Arthur Cronquist in a series of monographs and texts, including The Evolution and Classification of Flowering Plants (1968; 2nd edition, 1988) and An Integrated System of Classification of Flowering Plants (1981) (see Bibliography).

  4. Dunham classification - Wikipedia

    en.wikipedia.org/wiki/Dunham_classification

    Robert J. Dunham published his classification system for limestone in 1962. [2] The original Dunham classification system was developed in order to provide convenient depositional-texture based class names that focus attention on the textural properties that are most significant for interpreting the depositional environment of the rocks.