| Home > Tutorial > Entity Relational Modeling vs. Dimensional Modeling > Steps to create a Data Model |
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| Entity Relational Modeling vs. Dimensional Modeling |
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| Steps to create a Data Model |
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- Get Business requirements.
- Create High Level Conceptual Data Model.
- Create Logical Data Model.
- Select target DBMS where data modeling tool creates the physical schema.
- Create domain.
- Create Entity and add definitions.
- Create attribute and add definitions.
- Assign datatype to attribute. If a domain is already present then the attribute should be attached to the domain.
- Create primary or unique keys to attribute.
- Create check constraint or default to attribute.
- Create unique index or bitmap index to attribute.
- Create foreign key relationship between entities.
- Create Physical Data Model.
- Add database properties to physical data model.
- Create SQL Scripts from Physical Data Model and forward that to DBA.
- Maintain Logical & Physical Data Model.
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