Extending Satellites in Data Vault

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In our continuous Data Vault Friday series, our skilled trainer, Marc Finger, delves into a question posed by an audience member.

“Changes in the source system (new column/s): New row in an existing Satellite or new Satellite?”

Marc provides valuable insights into handling changes in the source system, specifically when encountering the addition of new columns. The question revolves around whether it’s more appropriate to introduce a new row in an existing Satellite or create an entirely new Satellite to accommodate these changes.

Through a clear and concise discussion, Marc elucidates the considerations and factors that influence the decision-making process. He explores the implications of both options, emphasizing the importance of aligning the chosen approach with the specific requirements and goals of the Data Vault model.

The trainer guides the audience through the thought process involved in making this decision, providing practical tips and best practices. By the end of the episode, viewers gain a deeper understanding of how to navigate the challenges associated with changes in the source system within the context of Data Vault methodology.

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To support the creation of Visual Data Vault drawings in Microsoft Visio, a stencil is implemented that can be used to draw Data Vault models. The stencil is available at www.visualdatavault.com.