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Metadata is "data about data".[1] There are two "metadata types;" structural metadata, about the design and specification of data structures or "data about the containers of data"; and descriptive metadata about individual instances of application data or the data content. The main purpose of metadata is to facilitate in the discovery of relevant information, more often classified as resource discovery. Metadata also helps organize electronic resources, provide digital identification, and helps support archiving and preservation of the resource. Metadata assists in resource discovery by "allowing resources to be found by relevant criteria, identifying resources, bringing similar resources together, distinguishing dissimilar resources, and giving location information." [2] Definition[edit] Metadata (metacontent) is defined as the data providing information about one or more aspects of the data, such as: Metadata is data. Libraries[edit] Photographs[edit] Video[edit] Web pages[edit] [edit] [edit]

Métadonnée Un article de Wikipédia, l'encyclopédie libre. Un exemple type est d'associer à une donnée la date à laquelle elle a été produite ou enregistrée, ou à une photo les coordonnées GPS du lieu où elle a été prise. Historique[modifier | modifier le code] Tous les établissements qui ont à gérer de l'information, bibliothèques, archives ou médiathèques ont déjà une longue pratique dans la codification du signalement ou des contenus des documents qu'ils manipulent. Ces descriptions ont ensuite été informatisées sous la forme de notices bibliographiques et normalisées (voir par exemple les formats MARC en 1964 utilisant la norme ISO 2709 dont la conception a démarré en 1960). Les bibliothèques numériques ont eu recours aux mêmes dispositifs pour gérer et localiser des documents électroniques. Le terme métadonnée (en anglais : metadata) est apparu dans le cadre de la description de ressources sur Internet dans les années 1990 et s'est ensuite généralisé. Généralisation[modifier | modifier le code]

Intranet An intranet is a computer network that uses Internet Protocol technology to share information, operational systems, or computing services within an organization. This term is used in contrast to extranet, a network between organizations, and instead refers to a network within an organization. Sometimes, the term refers only to the organization's internal website, but may be a more extensive part of the organization's information technology infrastructure, and may be composed of multiple local area networks. The objective is to organize each individual's desktop with minimal cost, time and effort to be more productive, cost efficient, timely, and competitive. An intranet may host multiple private websites and constitute an important component and focal point of internal communication and collaboration. An intranet can be understood as a private analog of the Internet, or as a private extension of the Internet confined to an organization. Intranets are sometimes contrasted to extranets.

Sistema de gestión de bases de datos Un sistema de gestión de bases de datos (SGBD) es un conjunto de programas que permiten el almacenamiento, modificación y extracción de la información en una base de datos, además de proporcionar herramientas para añadir, borrar, modificar y analizar los datos. Los usuarios pueden acceder a la información usando herramientas específicas de interrogación y de generación de informes, o bien mediante aplicaciones al efecto Los SGBD también proporcionan métodos para mantener la integridad de los datos, para administrar el acceso de usuarios a los datos y para recuperar la información si el sistema se corrompe. Permite presentar la información de la base de datos en variados formatos. La mayoría de los SGBD incluyen un generador de informes. Hay muchos tipos de SGBD distintos según manejen los datos y muchos tamaños distintos según funcionen sobre ordenadores personales y con poca memoria a grandes sistemas que funcionan en mainframes con sistemas de almacenamiento especiales. [editar]

Wiki Type of website that visitors can edit A wiki ( WIK-ee) is an online hypertext publication collaboratively edited and managed by its own audience, using a web browser. A typical wiki contains multiple pages for the subjects or scope of the project, and could be either open to the public or limited to use within an organization for maintaining its internal knowledge base. Wikis are enabled by wiki software, otherwise known as wiki engines. The online encyclopedia project, Wikipedia, is the most popular wiki-based website, and is one of the most widely viewed sites in the world, having been ranked in the top twenty since 2007.[3] Wikipedia is not a single wiki but rather a collection of hundreds of wikis, with each one pertaining to a specific language. Characteristics In their book The Wiki Way: Quick Collaboration on the Web, Ward Cunningham and co-author Bo Leuf described the essence of the Wiki concept:[8][9][page needed] Editing Source editing Layout consistency Basic syntax Visual editing

Ontologie (informatique) Un article de Wikipédia, l'encyclopédie libre. Par analogie, le terme est repris en informatique et en science de l'information, où une ontologie est l'ensemble structuré des termes et concepts représentant le sens d'un champ d'informations, que ce soit par les métadonnées d'un espace de noms, ou les éléments d'un domaine de connaissances. L'ontologie constitue en soi un modèle de données représentatif d'un ensemble de concepts dans un domaine, ainsi que des relations entre ces concepts. Elle est employée pour raisonner à propos des objets du domaine concerné. Plus simplement, on peut aussi dire que l' « ontologie est aux données ce que la grammaire est au langage ». L'objectif premier d'une ontologie est de modéliser un ensemble de connaissances dans un domaine donné, qui peut être réel ou imaginaire. Les ontologies informatiques sont des outils qui permettent précisément de représenter un corpus de connaissances sous une forme utilisable par un ordinateur. Notes

Proprietary software Proprietary software or closed source software is computer software licensed under exclusive legal right of the copyright holder with the intent that the licensee is given the right to use the software only under certain conditions, and restricted from other uses, such as modification, sharing, studying, redistribution, or reverse engineering.[1][2] Usually the source code of proprietary software is not made available. Complementary terms include free software,[2][3] licensed by the owner under more permissive terms, and public domain software, which is not subject to copyright and can be used for any purpose. Proponents of free and open source software use proprietary or non-free to describe software that is not free or open source.[4][5] A related but distinct categorization in the software industry is commercial software, which refers to software produced for sale but not necessarily closed source. Software becoming proprietary[edit] Legal basis[edit] Limitations[edit] Similar terms[edit]

Database Management System: Basics List of wikis This page contains a list of notable websites that use a wiki model. These websites will sometimes use different software in order to provide the best content management system for their users' needs, but they all share the same basic editing and viewing website model. §Table[edit] §See also[edit] §References[edit] §External links[edit] Beyond Social: Read/Write in The Era of Internet of Things This blog was founded in 2003 on the philosophy of a read/write Web - a Web in which people can create content as easily as they consume it. This trend eventually came to be known as Web 2.0 - although others preferred Social Web - and was popularized by activities like blogging and social networking. It would be easy to say that the 'social' element is still the primary part of today's Web, since the popular products of this era enable you to say what's on your mind (Facebook), what's happening (Twitter), or where you are (Foursquare). All of these are mostly social activities. But more significantly, these and other products output data that will increasingly be used to build personalized services for you. The more data there is, the better Web services will be at delivering personal value to you. How We Went Beyond Social So how did we arrive at a Web that is less about social and more about you? It's not how much content you consume that is important, it's about what you do with data.

Metadata: The definitions, mappings, and other characteristics used to describe how to find, access, and use the company’s data and software components.

Found in: Hurwitz, J., Nugent, A., Halper, F. & Kaufman, M. (2013) Big Data For Dummies. Hoboken, New Jersey, United States of America: For Dummies. ISBN: 9781118504222. by raviii Jan 1