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DWH Version Change without interrupting production Disclosure Number: IPCOM000029870D
Original Publication Date: 2004-Jul-15
Included in the Prior Art Database: 2004-Jul-15

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A Data Warehouse stores informational data, that is extracted from the operational data and then transformed for end user decision making, controlled by meta data. Operational efficiency and the precision of adjustments to changing conditions are essential for companies in today's increasing competition. Many parameters in the meta data repository, that control the data processing in a data warehouse, are subject to modifications. The invention describes the technique how a meta data repository and the exploitation of this meta data by the warehouse processes must be designed and implemented to enable a seamless migration from Version N to N+1 of the potential version change areas without interrupting processing.