Task: Outline Logical Data Model |
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Define a logical data model in terms of key entities, attributes, and relationships. The scope of this task could be to outline a new data model, to outline an addition to an existing data model, or to identify applicable elements within a strategic data model. |
Disciplines: Development |
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Purpose
The goal of this stage in the development of the data model is to identify the population of entities, understand key
attribute content, and to produce an outline of how the entities are tied together by relationships. Completion of this
task yields a data model in first normal form with known entities and attributes defined in the data dictionary. The
purpose is to get agreement on the scope of the data model before investing in a detailed model. |
Relationships
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Outputs |
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Key Considerations
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Frequent stakeholder review and involvement is critical to the success of the logical database design.
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Data design and application logic design are highly dependent on and related to one another. Achieving good data
design requires strong, ongoing teaming with application logic designers throughout the development cycle.
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Physical implementation considerations are not factored in to logical database design. Independence from these
concerns enables flexible yet stable data designs.
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More Information
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Guidelines |
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Estimation Considerations |
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