Data model

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A data model is used to organize data. A data model captures the cardinality and referential integrity rules needed to ensure that the data is of good quality for the users.

A data model has 3 uses in an application which are getting data in, integrating data and getting data out.

A data model is also used as a communication tool for teams to communicate within the team on how data is organized and between teams.

Contents

Overview

Managing large quantities of structured and unstructured data is a primary function of information systems. Data models describe structured data for storage in data management systems such as relational databases. They typically do not describe unstructured data, such as word processing documents, email messages, pictures, digital audio, and video.

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