Choose Index below for a list of all words and phrases defined in this glossary.


Data Model

index | Index

Data Model - definition(s)

Data Model : (1) A logical map or representation of real-world objects and events that represents the inherent properties of the data independently of software, hardware, or machine performance considerations. The model shows data attributes grouped into third normal form entities, and the relationships among those entities. (DM) (2) In data mining, an expression in symbolic terms of the relationships in data, such that the model represents how changes in one attribute or set of attributes causes changes in another attribute or set of attributes, revealing useful information about the reliability of the relationships. (DW) 

[Category=Data Quality ]

Source: Larry English, http://www.iaidq.com/main/glossary.shtml External, 21-Jan-2009 11:11


These advertisers support this free service


Data Model - The logical data structures, including operations and constraints provided by the DBMS to effectively process data; system used for the representation of data (the ERD, or relational model).

[Category=Database Management ]

Source: Northwest Database Services, 07 November 2009 11:44:54, http://www.nwdatabase.com/database-glossary-d.htm External


Data Model - A method of visualizing the informational needs of a system. A data model typically takes the form of an ERD (Entity Relationship Diagram).  A Conceptual Data Model is completely devoid of database-level information, while a Logical Data Model stores generic characteristics (such as indexes and foreign keys) without adding anything specific to a single database management system. Physical Data Models translate information from a Logical Data Model to designs that are specific to a certain database management system.

[Category=Data Governance ]

Source: The Data Governance Institute, 27 November 2009 09:16:52, http://www.datagovernance.com/glossary-governance/ External


Data Model - A logical map that represents the inherent properties of the data independent of software, hardware or machine performance considerations. The model shows data elements grouped into records, as well as the association around those records.

[Category=Information Management ]

Source: Information-Management.com, 11 June 2010 11:04:46, http://www.information-management.com/glossary/d.html External


Data Model - A logical map that represents the inherent properties of the data independent of software, hardware, or machine performance considerations. The model shows data elements grouped into records, as well as the association around those records.

[Category=Data Warehousing ]

Source: Sun.com, 23 July 2010 11:27:04, http://www.sun.com/third-party/dw/brochures/67198.Acrobat.pdf External


Data Model - A logical map that represents the inherent properties of the data independent of software, hardware or machine performance considerations. The model shows data elements grouped into records, as well as the association around those records.

[Category=Data Management ]

Source: DataMentors, 17 August 2010 09:19:52, http://www.datamentors.com/News-and-Resources/Glossary.html External


Data Model - A representation of the specific information requirements of a business area; see also ]]entity relationship model (ERM or ER model)]].

[Category=Data Warehousing ]

Source: Aexis Business Intelligence, 20 November 2010 08:07:29, http://www.aexis.eu/DataWarehouse-Glossary/ External


data model - Source: AGI glossary. www.geo.ed.ac.uk/agidict/welcome.html External

"An abstraction of the real world which incorporates only those properties thought to be relevant to the application at hand. The data model would normally define specific groups of entities, and their attributes and the relationships between these entities. A data model is independent of a computer system and its associated data structures. A map is one example of an analogue data model."

[Category=Geospatial ]

Source: Open Geospatial Consortium, 08 June 2011 08:28:21, http://www.opengeospatial.org/ogc/glossary External


Data model - (i) An abstract, self-contained logical definition of the data structures and associated operators that make up the abstract machine with which users interact (such as the relational model of data). (ii) A model of the persistent data of some enterprise (such as an entity- relationship model of data required to support a human resources department).

[Category=Data Quality ]

Source: DAMA UK, 15 July 2011 09:01:46, http://www.damauk.org/glossary.php External


data model

(1) [data models] In GIS, a mathematical construct for representing geographic objects or surfaces as data. For example, the vector data model represents geography as collections of points, lines, and polygons; the raster data model represents geography as cell matrixes that store numeric values; and the TIN data model represents geography as sets of contiguous, nonoverlapping triangles.

(2) [data models] In information theory, a description of the rules by which data is defined, organized, queried, and updated within an information system (usually a database management system).

[Category=Geospatial ]

Source: esri, 17 March 2012 09:39:51, http://support.esri.com/en/knowledgebase/GISDictionary/term/abbreviation External 


data model, data modeling

A data model defines the structure of the data for the purpose of communicating between functional and technical people to show data needed for business processes, or for communicating a plan to develop how data is stored and accessed among application development team members.

[Category=Big Data ]

Source: DataInformed, 24 October 2013 09:37:26, http://data-informed.com/glossary-of-big-data-terms/ External


Data Quality Glossary.  A free resource from GRC Data Intelligence. For comments, questions or feedback: dqglossary@grcdi.nl