Data modeling constructs and terminology
Identification of data sources is the first step in warehouse development. In this video training segment, Michael Blaha provides a framework by reviewing data modeling constructs and terminology, including dependent and independent entity types. Using IE (information engineering) notation and the ERwin tool, Blaha walks through a sample operational data model.
An armillary sphere in a painting by Sandro Botticelli, circa 1480. (source: Wikimedia Commons)
