A conceptual data model identifies the highest-level relationships between the different entities. Features of conceptual data model include:
- Includes the important entities and the relationships among them.
- No attribute is specified.
- No primary key is specified.
The figure below is an example of a conceptual data model.
Conceptual Data Model
From the figure above, we can see that the only information shown via the conceptual data model is the entities that describe the data and the relationships between those entities. No other information is shown through the conceptual data model.
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