Using the data warehouse
The data warehouse is a method of storing historical and integrated data for use in decision support systems (DSS). The data warehouse provides a source of integrated enterprise-wide historical data. This book describes how to use a data warehouse once it has been constructed. The authors discuss how to use information to capture and maintain a competitive advantage and how to migrate legacy systems to a data warehouse.
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Using Information for Competitive
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acct acctactv acctnumb amounts of data appl approach cessing client interface client/server common complex correlations composite query created current detail data data architect data found data model data relationships data ware data warehouse contains data warehouse data data warehouse environment database server DBMS decisions DSS analyst end user end-user analyst execution feqg function gateway growth highly summarized data important informational architecture informational processing integrated iterative legacy applications legacy systems environment level of detail lightly summarized ment metadata monitoring needs ODBC ODS data Open Database Connectivity operational data store operational environment organization perspective problem production environment protocol reengineering reporting request requirements rqmnt rqmnt rqmnt server interface server platform server types shown in Figure shows structure subject areas summary data Sybase SQL Server system of record tion tx amount update usage volume of data W. H. Inmon workstation