Data architecture: Difference between revisions

Revision as of 21:10, 31 July 2017

Revision as of 18:53, 28 August 2017

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{{Refimprove|date=November 2008}}

In [[information technology]], '''data architecture''' is composed of models, policies, rules or standards that govern which data is collected, and how it is stored, arranged, integrated, and put to use in data systems and in organizations.<ref>
*[http://www.businessdictionary.com/definition/data-architecture.html Business Dictionary - Data Architecture]</ref><ref>
*[http://pubs.opengroup.org/architecture/togaf9-doc/arch/chap10.html TOGAF® 9.1 - Phase C: Information Systems Architectures - Data Architecture]</ref> Data is usually one of several [[architecture ___domain]]s that form the pillars of an [[enterprise architecture]] or [[solution architecture]].<ref>[http://www.learn.geekinterview.com/data-warehouse/data-architecture/what-is-data-architecture.html What is data architecture] GeekInterview, 2008-01-28, accessed 2011-04-28</ref>

== Overview ==

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|1||'''Scope/Contextual''' || List of things and architectural standards<ref>[http://www.strins.com/data-architecture-standards.html Data Architecture Standards]</ref> important to the business || Planner

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|2||'''Business Model/Conceptual''' || Semantic model or [[Entity-relationship model|Conceptual]]/[http://tdan.com/the-enterprise-data-model/5205 [Enterprise Data Model]] || Owner

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|3||'''System Model/Logical''' || Enterprise/[[Logical data model|Logical Data Model]] || Designer

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In this second, broader sense, data architecture includes a complete analysis of the relationships among an organization's functions, available [[technologies]], and [[data type]]s.

Data architecture should be defined in the '''planning phase''' of the design of a new data processing and storage system. The major types and sources of data necessary to support an enterprise should be identified in a manner that is complete, consistent, and understandable. The primary requirement at this stage is to define all of the relevant '''data entities''', not to specify [[computer hardware]] items. A data entity is any real or abstracted thing about which an organization or individual wishes to store data.

== Physical data architecture ==