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  2. List of Dewey Decimal classes - Wikipedia

    en.wikipedia.org/wiki/List_of_Dewey_Decimal_classes

    Class 000 – Computer science, information, and general works. Class 100 – Philosophy and psychology. Class 200 – Religion. Class 300 – Social sciences. Class 400 – Language. Class 500 – Science. Class 600 – Technology. Class 700 – Arts and recreation. Class 800 – Literature.

  3. A.L.A. Catalog - Wikipedia

    en.wikipedia.org/wiki/A.L.A._catalog

    The A.L.A. Catalog, also known as the Catalog of A.L.A. Library, as one of the most popular booklists developed by experts, is the “first general book selection guide cooperatively prepared for use by American public libraries.” [3] Before the development of the catalog, Melvil Dewey first promoted the idea of a universal library collection guide in an article “The Coming Catalogue” in ...

  4. List of astronomical catalogues - Wikipedia

    en.wikipedia.org/.../List_of_astronomical_catalogues

    Markov (telescopic asterisms) (for example: Markov 1 in Hercules) MAXI — Monitor of All-sky X-ray Image. Mayall — Nicholas Mayall (for example: globular star cluster Mayall II orbiting Messier 31, the Andromeda galaxy) Mayer (open star clusters) McC — McCormick Observatory Catalog. MCG — Morphological Catalogue of Galaxies.

  5. Stellar classification - Wikipedia

    en.wikipedia.org/wiki/Stellar_classification

    A first result of this work was the Draper Catalogue of Stellar Spectra, published in 1890. Williamina Fleming classified most of the spectra in this catalogue and was credited with classifying over 10,000 featured stars and discovering 10 novae and more than 200 variable stars. [52]

  6. Class diagram - Wikipedia

    en.wikipedia.org/wiki/Class_diagram

    The class diagram is the main building block of object-oriented modeling. It is used for general conceptual modeling of the structure of the application, and for detailed modeling, translating the models into programming code. Class diagrams can also be used for data modeling. [ 2 ]

  7. Satellite Catalog Number - Wikipedia

    en.wikipedia.org/wiki/Satellite_Catalog_Number

    The Satellite Catalog Number (SATCAT), also known as NORAD Catalog Number, NORAD ID, USSPACECOM object number, is a sequential nine-digit number assigned by the United States Space Command (USSPACECOM), and previously the North American Aerospace Defense Command (NORAD), in the order of launch or discovery to all artificial objects in the orbits of Earth and those that left Earth's orbit. [1]

  8. Eschmeyer's Catalog of Fishes - Wikipedia

    en.wikipedia.org/wiki/Eschmeyer's_Catalog_of_Fishes

    A printed 3000-page three-volume and CD version of the Catalogue was published in 1998. That was preceded by a Catalog of the genera of recent fishes in 1990. [5] The Catalog was renamed Eschmeyer's Catalog of Fishes in 2019, and is now edited by Ronald Fricke, Richard van der Laan and William N. Eschmeyer. It is available online, and updated ...

  9. PDF - Wikipedia

    en.wikipedia.org/wiki/PDF

    PDF 2.0 allows metadata to be attached to any object in the document, such as information about embedded illustrations, fonts, and images, as well as the whole document (attaching to the document catalog), using an extensible schema. PDF documents can also contain display settings, including the page display layout and zoom level in a Viewer ...