Data Vault Modeling

erwin Data Modeler (erwin DM) supports Data Vault 2.0 as a modeling technique across all target databases. The key principle of Data Vault Modeling is separating business keys, contexts, and relationships in distinct tables as hubs, satellites, and links.

erwin DM supports the following Data Vault 2.0 components by default through API:

  • Hub

  • Link

  • Satellite

  • Reference

  • PIT

  • Bridge

These components are available on the Home tab of the ribbon. However, to use these components, you need to enable Data Vault 2.0 on your model.

Enabling Data Vault 2.0

To enable Data Vault 2.0 on your model, follow these steps:

  1. In the Model Explorer, right-click the model and click Properties.
    The Model Editor opens.

  2. On the General tab, select the Data Vault 2.0 check box.

    3. Once enabled, Data Vault 2.0 components are available via the Model Explorer. Also, when you create or open a model, the standard Data Vault components are created by default. You can now convert your model to a Data Vault model.

    Disabling Data Vault 2.0 removes the Data Vault properties applied to the model objects, and re-enabling this option will not restore the changes.

    You can also create custom components and apply them to tables. However, these custom components do not appear on the ribbon.