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Use Repeated Data Models Method to Simplify Model Management

A master model is used to manage the logical and physical data design so the data model, technical design, and Referential Integrity (RI) triggers are migrated to other project models from the master model. Changes to the logical or physical design are only allowed in the master data model.

Business Value

Using a master model allows the model size to be more manageable. In addition, logical and physical design maintenance is isolated from projects because the designs are managed in the master model. Also, diverse project schedules now can be accommodated. Since changes are controlled through the master model, model management is simplified.

Additional Considerations

Since the data model and data structure are identical in all models, the RI triggers will be the same regardless of the model used as the source. Model management may become more complex because of multiple project models. Project models may contain data definitions that are not used for that project.