Sharp BlueRichard Baker's thoughts on history, science, technology, literature and the future.Integration modelling, part one- July 15, 2007 Data modelling is the art of abstracting aspects of reality relevant to a given problem and then representing those aspects in a database schema or collection of classes or other concrete form. Data modellers thus deal with deal with several different worlds simultaneously: The problem domain, a part of the real world (or at least a part of the world considered "real" from the point of view of the system being designed); The conceptual schema, an abstract model describing the problem domain.http://www.theculture.org/rich/sharpblue/archives/000187.html |