Data Vault Modeling

Starting 2021 R1 version, 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 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. Right-click the model and click Properties.

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

    3. Once enabled, Data Vault 2.0 components are available via the Model Explorer. You can now convert your model to a Data Vault model.

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