Entity Attribute Value

См. также в других словарях:

• Entity–attribute–value model — (EAV) is a data model to describe entities where the number of attributes (properties, parameters) that can be used to describe them is potentially vast, but the number that will actually apply to a given entity is relatively modest. In… …   Wikipedia

• Entity-attribute-value model — (EAV), also known as object attribute value model and open schema is a data model that is used in circumstances where the number of attributes (properties, parameters) that can be used to describe a thing (an entity or object ) is potentially… …   Wikipedia

• Attribute-value system — An attribute value system is a basic knowledge representation framework comprising a table with columns designating attributes (also known as properties , predicates, features, dimensions, characteristics or independent variables depending on the …   Wikipedia

• Attribute-value pair — A name–value pair, key–value pair, field–value pair or attribute–value pair is a fundamental data representation in computing systems and applications. Designers often desire an open ended data structure that allows for future extension without… …   Wikipedia

• Entity-relationship model — A sample Entity relationship diagram using Chen s notation In software engineering, an entity relationship model (ERM) is an abstract and conceptual representation of data. Entity relationship modeling is a database modeling method, used to… …   Wikipedia

• Attribute — The word attribute can refer to:* In philosophy, property, an abstraction of a characteristic of an entity or substance * In art, an object that identifies a figure, most commonly referring to objects held by saints see emblem * In social… …   Wikipedia

• Attribute domain — The attribute domain is the set of values allowed in an attribute.For example: Rooms in hotel (1 300) Age (1 99) Married (yes or no) Nationality (Sri Lankan, Indian, American, or British)For the relational model it is a requirement that each part …   Wikipedia

• SGML entity — In SGML and its derived markup languages HTML and XML, an entity is a named body of data associated with a document, or the unnamed document entity itself. Once defined, a named entity can be referenced any number of times within the document,… …   Wikipedia

• List of XML and HTML character entity references — In SGML, HTML and XML documents, the logical constructs known as character data and attribute values consist of sequences of characters, in which each character can manifest directly (representing itself), or can be represented by a series of… …   Wikipedia

• EAV — entity attribute value [data organization]; equine abortion virus; equine arteritis virus * * * electroacupuncture after Voll …   Medical dictionary

• EAV — • entity attribute value [data organization]; • equine abortion virus; • equine arteritis virus …   Dictionary of medical acronyms & abbreviations