One or more of the following can be used as input to the estimation:
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The number of persistent classes in the class diagram, and the relationships
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The number of entities in the logical data model, and the relationships
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Also consider adding time for the following factors
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Spread of data across platforms
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Volumetric considerations
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Performance considerations
The time taken will vary depending on the use of a database modeling tool. Use of a tool for completing this artifact
will save time in the areas of performing space calculations and writing DDL. The range can vary between:
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20%-30% of time taken for the class diagram and/ or logical data model if using a database design tool
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33% - 50% of time taken for the class diagram and/ or logical data model if not using a database design tool
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