The design team, in an effort to reach unit testing, is most concerned with the Transformation and Retransformation Tools. In addition, the design team may want to modify defaults with the Technical Design Defaults tool.
As development progresses, the design team may need to transform specific pieces of the data model as the data model changes. Incremental retransformation is used for this. In general, transformation is performed the first time and retransformation is performed thereafter as needed.
The physical database definition that is created when the data model is transformed does not contain a dynamic link to the data model. This means that the design team can continue to make changes to the data model without impacting the technical design. Changes may be made to the Data Structure List without affecting the data model. Changes to the Data Structure List are lost if a subsequent transformation is performed on the data model.
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