Edward F. Ewen

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Star schema, which maintains one-to-many relationships between dimensions and a fact table, is widely accepted as the most viable data representation for dimensional analysis. Real-world DW schema, however, frequently includes many-to-many relationships between a dimension and a fact table. Having those relationships in a dimensional model causes several(More)
1. ABSTRACT Healthcare presents unique challenges for the architect of a data warehouse. Integrated health systems are shifting its focus away from the acute care setting and moving towards cross-continuum care management. Improving healthcare quality while reducing costs requires the elimination of unnecessary variation in the care process. This paper(More)
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