Database Reference
In-Depth Information
Figure 5-18. Some Commonly Used Database Planning Tools ( continued )
5.11 Summary and Concluding Remarks
It is now time to summarize what we have covered in this chapter:
A database model is a blueprint for subsequent database design.
It is a representation of the database. We have looked at three
database models: the E-R model, the XR model and the UML
model.
Database design involves preparation of a database specification,
which will be used to construct the database. We have discussed
database design via the E-R model, the XR model, the UML
model, the O/ESG, and normalization theory.
 
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