You can use design layers to represent the different phases in the model development process. Using design layers, you can create separate models that are related and linked to one another. Within each design layer, you can make design decisions that allow you to transition from one layer to another. Possible examples of design layers include: enterprise, conceptual, logical, generic physical, physical, and data warehouse.
You can associate modeling objects in related models using tools like Add Model Source, Sync with Model Source, Split Logical/Physical models, and Derive model.
If you want to simply match existing objects in two models, creating a link between the objects, use the Link Model Source tool. Unlike the Add Model Source, Derive Model, and Sync with Model Source features, the Link Model Source feature creates no new objects in the target model (although you can use features in the Resolve Differences dialog to import and export objects and properties). You can maintain or update linked objects using the Sync with Model Source tool.
To link objects of two models
When your linked models change, you can keep them in sync by using the Sync with Model Source wizard. On the Actions menu, choose Sync with Model Source to start the synchronization process.
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