Entwicklung eines Multi-Data Warehouse Querytools am Beispiel der Österreichischen Krankenkassen

  • Udo Christoph Feyerl

Research output: ThesisMaster's / Diploma thesis

Abstract

The Data Warehouse of the Upper-Austrian Health Insurance Organization (called UDW) will be distributed to the other Health Insurance Organizations in Austria in the middle of 2004. This distribution forces the next development cycle of UDW. Global queries should be enabled. In cause of the distribution, fact-tables will be horizontally fragmented and all dimensions will be allocated redundantly on each site. All local Data Warehouses share the same schema. In addition to the data, UDW includes a query tool to define attributes, constraints and aggregations via an interactive program. Because of the horizontal fragmentation it is possible to execute queries on each site. This work focuses on the enhancement of the existing query tool to enable distributed query processing on federated data warehouses. The last section of this paper describes a prototype for this query tool.
Original languageGerman (Austria)
Supervisors/Reviewers
  • Schrefl, Michael, Supervisor
  • Bögl, Andreas, Co-supervisor
  • Hoffmann, Anne, Co-supervisor, External person
Publication statusPublished - Jun 2004

Fields of science

  • 102 Computer Sciences
  • 102015 Information systems

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