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Semantic data model (SDM) is a high-level semantics-based database description and structuring formalism (database model) for databases. This database model is designed to capture more of the meaning of an application environment than is possible with contemporary database models. An SDM specification describes a database in terms of the kinds of entities that exist in the application environment, the classifications and groupings of those entities, and the structural interconnections among them. SDM provides a collection of high-level modeling primitives to capture the semantics of an application environment. By accommodating derived information in a database structural specification, SDM allows the same information to be viewed in several ways; this makes it possible to directly accommod

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  • El modelo de dato semántico en ingeniería de software tiene varios significados: 1. * Es un modelo conceptual de datos en el que se incluye información semántica. Esto significa que el modelo describe el significado de sus instancias. Tal modelo de dato semántico es una abstracción que define cómo los símbolos almacenados (los datos de la instancia) se relacionan con el mundo real.​ 2. * Es un modelo de datos conceptual que incluye la capacidad de expresar información que permite el intercambio de información para interpretar su significado (semántico) de las instancias, sin necesidad de conocer el meta-modelo. Estos modelos semánticos están orientados a los hechos (en oposición a los orientados a objetos). Los hechos son típicamente expresados por relaciones binarias entre elementos de datos, mientras que las relaciones de orden superior se expresan como colecciones de relaciones binarias. Típicamente las relaciones binarias tienen la forma de ternas: Objeto--Objeto. Por ejemplo: La Torre Eiffel París. Típicamente, los datos de instancia de los modelos de datos semánticos incluyen explícitamente los tipos de relaciones entre los diversos elementos de datos. Para interpretar el significado de los hechos de las instancias se requiere que se conozca el significado de los tipos de relaciones (tipos de relación). Por lo tanto, los modelos de datos semánticos típicamente estandarizan tales tipos de relación. Esto significa que el segundo tipo de modelos de datos semánticos permiten que las instancias expresen hechos que incluyen su propio significado. El segundo tipo de modelos de datos semánticos suele estar destinado a crear bases de datos semánticas. La capacidad de incluir significado en bases de datos semánticas facilita la creación de bases de datos distribuidas que permiten a las aplicaciones interpretar el significado del contenido. Esto implica que las bases de datos semánticas pueden ser integradas cuando usan los mismos tipos de relación (estándar). Esto también implica que en general tienen una aplicabilidad más amplia que las bases de datos relacionales u orientadas a objetos. (es)
  • Semantic data model (SDM) is a high-level semantics-based database description and structuring formalism (database model) for databases. This database model is designed to capture more of the meaning of an application environment than is possible with contemporary database models. An SDM specification describes a database in terms of the kinds of entities that exist in the application environment, the classifications and groupings of those entities, and the structural interconnections among them. SDM provides a collection of high-level modeling primitives to capture the semantics of an application environment. By accommodating derived information in a database structural specification, SDM allows the same information to be viewed in several ways; this makes it possible to directly accommodate the variety of needs and processing requirements typically present in database applications. The design of the present SDM is based on our experience in using a preliminary version of it. SDM is designed to enhance the effectiveness and usability of database systems. An SDM database description can serve as a formal specification and documentation tool for a database; it can provide a basis for supporting a variety of powerful user interface facilities, it can serve as a conceptual database model in the database design process; and, it can be used as the database model for a new kind of database management system. A semantic data model in software engineering has various meanings: 1. * It is a conceptual data model in which semantic information is included. This means that the model describes the meaning of its instances. Such a semantic data model is an abstraction that defines how the stored symbols (the instance data) relate to the real world. 2. * It is a conceptual data model that includes the capability to express and exchange information which enables parties to interpret meaning (semantics) from the instances, without the need to know the meta-model. Such semantic models are fact-oriented (as opposed to object-oriented). Facts are typically expressed by binary relations between data elements, whereas higher order relations are expressed as collections of binary relations. Typically binary relations have the form of triples: Object-RelationType-Object. For example: the Eiffel Tower Paris. Typically the instance data of semantic data models explicitly include the kinds of relationships between the various data elements, such as . To interpret the meaning of the facts from the instances, it is required that the meaning of the kinds of relations (relation types) be known. Therefore, semantic data models typically standardize such relation types. This means that the second kind of semantic data models enables that the instances express facts that include their own meanings. The second kind of semantic data models are usually meant to create semantic databases. The ability to include meaning in semantic databases facilitates building distributed databases that enable applications to interpret the meaning from the content. This implies that semantic databases can be integrated when they use the same (standard) relation types. This also implies that in general they have a wider applicability than relational or object-oriented databases. (en)
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  • U.S. Air Force as Integrated Computer-Aided Manufacturing program (en)
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  • Planning of Data Resources, Building of Shareable Databases, Evaluation of Vendor Software, Integration of Existing Databases (en)
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  • Semantic data model (en)
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  • Gellish , ISO 15926-2 (en)
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  • semantics-based database description (en)
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  • El modelo de dato semántico en ingeniería de software tiene varios significados: 1. * Es un modelo conceptual de datos en el que se incluye información semántica. Esto significa que el modelo describe el significado de sus instancias. Tal modelo de dato semántico es una abstracción que define cómo los símbolos almacenados (los datos de la instancia) se relacionan con el mundo real.​ 2. * Es un modelo de datos conceptual que incluye la capacidad de expresar información que permite el intercambio de información para interpretar su significado (semántico) de las instancias, sin necesidad de conocer el meta-modelo. Estos modelos semánticos están orientados a los hechos (en oposición a los orientados a objetos). Los hechos son típicamente expresados por relaciones binarias entre elementos d (es)
  • Semantic data model (SDM) is a high-level semantics-based database description and structuring formalism (database model) for databases. This database model is designed to capture more of the meaning of an application environment than is possible with contemporary database models. An SDM specification describes a database in terms of the kinds of entities that exist in the application environment, the classifications and groupings of those entities, and the structural interconnections among them. SDM provides a collection of high-level modeling primitives to capture the semantics of an application environment. By accommodating derived information in a database structural specification, SDM allows the same information to be viewed in several ways; this makes it possible to directly accommod (en)
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  • Modelo semántico de datos (es)
  • Semantic data model (en)
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