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Dimensional modeling
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<p> Dimensional modeling (DM) is part of the <i><a href="/facts/The_Kimball_Lifecycle/1tJwvvpA">Business Dimensional Lifecycle</a></i> methodology developed by <a href="/facts/Ralph_Kimball/obMfhEK5">Ralph Kimball</a> which includes a set of methods, techniques and concepts for use in <a href="/facts/Data_warehouse/we5rblq9">data warehouse</a> design.: 1258–1260 The approach focuses on identifying the key <a href="/facts/Business_process/fYH2eREc">business processes</a> within a business and modelling and implementing these first before adding additional business processes, as a <a href="/facts/Top-down_and_bottom-up_design/MvtTkA3x">bottom-up approach</a>.: 1258–1260 An alternative approach from <a href="/facts/Bill_Inmon/haumq5vG">Inmon</a> advocates a top down design of the model of all the enterprise data using tools such as <a href="/facts/Entity-relationship_model/U8A0mwYe">entity-relationship modeling</a> (ER).: 1258–1260 </p>