Data Warehouse Development
José María Cavero Barca (Universidad Rey Juan Carlos, Spain), Esperanza Marcos Martinez (Universidad Rey Juan Carlos, Spain), Mario G. Piattini (Universidad de Castilla-La Mancha, Spain) and Adolfo Sánchez de Miguel (Cronos Iberica, S. A., Spain)
Copyright: © 2005
The concept of data warehouse first appeared in Inmon (1993) to describe a “subject oriented, integrated, non-volatile, and time variant collection of data in support of management’s decisions” (31). It is a concept related to the OLAP (online analytical processing) technology, first introduced by Codd et al. (1993) to characterize the requirements of aggregation, consolidation, view production, formulae application, and data synthesis in many dimensions. A data warehouse is a repository of information that mainly comes from online transactional processing (OLTP) systems that provide data for analytical processing and decision support.