Enterprise data modelling or enterprise data modeling (EDM) is the practice of
creating a graphical model of the data used by an enterprise or company. Typical outputs of this activity include an enterprise data model consisting of
entity–relationship diagrams (ERDs),
XML schemas
An XML schema is a description of a type of Extensible Markup Language, XML document, typically expressed in terms of constraints on the structure and content of documents of that type, above and beyond the basic syntactical constraints imposed b ...
(XSD), and an enterprise wide
data dictionary
A data dictionary, or metadata repository, as defined in the ''IBM Dictionary of Computing'', is a "centralized repository of information about data such as meaning, relationships to other data, origin, usage, and format". ''Oracle Corporation, ...
.
Overview
Producing such a model allows for a business to get a 'helicopter' view of their enterprise. In EAI (
enterprise application integration) an EDM allows data to be represented in a single idiom, enabling the use of a common syntax for the XML of services or operations and the physical data model for database schema creation. Data modeling tools for ERDs that also allow the user to create a data dictionary are usually used to aid in the development of an EDM.
The implementation of an EDM is closely related to the issues of
data governance and data stewardship within an organization.
References
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Data modeling
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