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Data modeling is the practice of representing data structures and their relationships through conceptual modeling. The benefits of implementing this process during the design phase of your database project include improved data integrity, a more efficient development cycle, a clearer vision of the entities that are being represented in your database, and a powerful visual aid for collaboration and database design.
Methodologies and the Entity-Relationship Model
You may be familiar with the term Entity-Relationship Model (ERM). ER is technically a methodology for data modeling. A methodology is just a defined set of processes and methods which are followed during the design and development of a software project.
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