Data Federation – DW Patterns – The Holistic Data View Pattern

Following on from my last blog on data federation, the next data federation pattern I would like to discuss is a Data Warehouse Holistic Data View pattern. This is as follows.

Pattern Description
This pattern, also known as the schema extension pattern, uses data virtualization to create a holistic complete view of business activity by combining the latest most up to date operational transactional activity in one or more operational systems with detailed corresponding historical data from data warehouses and data marts.

Pattern Diagram
Holistic Data View Pattern

Pattern Example Use Case
Front-office staff in a call centre operator or a branch of a bank may need to view current risk exposure for a customer they are on the phone to while also looking at a risk exposure trend for that customer across all loan products held. A second use case is regulatory compliance reporting whereby operational and historical data may both be needed for compliance reporting.

Reasons For Using It
This pattern allows companies to quickly show a holistic view of business activity that includes the more recent transactional activity combined with historical activity. This data can be presented for analysis and reporting even if the latest transactional data has not yet reached the data warehouse.

Look out for the next data federation data warehouse patterns on virtual data mart and virtual data source coming soon.


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