Definition of Data Warehousing Essay

lookup some(prenominal) resource (Books, Web Sites, Papers, etc.) to find three interpretations for Data Warehousing. accept the detailed information (Title, authors and the source of the definitions. For exampleData warehousing is a accumulation of decision clog technologies, aimed at enabling the knowledge proletarian (executive, manager, analyst) to make better and faster decisions. An overview of info warehousing and OLAP technology by S Chaudhuri, U Dayal, from ACM Sigmod record, Volume 26 , Issue 1 (March 1997) Pages 65 74.1. A entropy warehouse is an integrated and time varying disposition of data derived from operational data and primarily used in strategical decision do by means of online analytical serve welling (OLAP) techniques. from conceptual data warehouse design by B. Husemann, J. Lichtenberger, and G. Vossen. Page 1.2. A galactic data warehouse is a subject-oriented, integrated, time-variant, non-volatile collection of data in support of managements de cision making process about any and all enterprise argumentation processes and departments, and about the enterprise taken as a whole. A business process-oriented data warehouse is a subject-oriented, integrated, time-variant, non-volatile collection of data in support of managements decision making process about any and all business processes and their interactions with one a nonher(prenominal) and the external world. A department-oriented data warehouse is a subject-oriented, integrated, time-variant, non-volatile collection of data in support of managements decision making process about any and all departments, and their interactions with one another and with the external world. From DKMS brief No. Six Data Warehouses, Data Marts, and Data Warehousing bracing Definitions and New Conceptions by Joseph M.Firestone.3. Physically, a data warehouse system consists of databases (source databases, materialized views in the data warehouse), data transport agents that ship data from on e database to another, and a repository which stores meta data about the system and its evolution. From Architecture and Quality in Data warehouses An Extended Repository Approach by M. Jarke, M. A. Jeusfeld, C. Quix, and P. Vassiliadis.Provide a brief summary to compare the three definitions that youve found. Tell me which one is your front-runner and why?The first definition explains the components of a data warehouse and in addition its functionality in a general way. The second definition explains the function of a data warehouse and its components specific to each kind of a data warehouse like decision making with respect to a business module. The third definition explains the components of a data warehouse but does not specify the functionality of a data warehouse. I prefer the second definition over the other two definitions.