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The data warehousing market consists of tools, technologies, and methodologies that allow for the construction, usage, management, and maintenance of the hardware and software used for a data warehouse, as well as the actual data itself. Surveys indicate Data Warehousing will be the single largest IT initiative after completion of Y2K efforts. Data warehousing is currently a $28 Billion market (Source: Data Warehousing Institute) and we estimate 20% growth per annum through at least 2002.Two of the pioneers in the field were Ralph Kimball and Bill Inmon. Biographies of these two individuals have been provided, since many of the terms discussed in this paper were coined and concepts defined by them. In order to clear up some of the confusion that is rampant in the market, here are some definitions: Data Warehouse: The term Data Warehouse was coined by Bill Inmon in 1990, which he defined in the following way: "A warehouse is a subject-oriented, integrated, time-variant and non-volatile collection of data in support of management's decision making process". He defined the terms in the sentence as follows: Subject Oriented: Data that gives information about a particular subject instead of about a company's ongoing operations. Integrated: Data that is gathered into the data warehouse from a variety of sources and merged into a coherent whole. Time-variant: All data in the data warehouse is identified with a particular time period. Non-volatile Data is stable in a data warehouse. More data is added but data is never removed. This enables management to gain a consistent picture of the business. We have Centers in:- Kalkaji-9350254311 Kingsway Camp-9015286073 Vikaspuri-9311306006 Gurgaon-9310806006 Noida-9310254311 For Further Enquiry Contact us at:9311962325 Regards High Technologies Solutions E-1/1 First Floor, Above Airtel Showroom Sector-7 Rohini, Opp To M2K Rohini Ph: - 011-43306601/ M:- 9311962325 Email: - info-north@htsindia.com Website: - www.htsindia.com # # # High Technologies solutions is the one of the best training institute in delhi/ncr,HTS provides training in .NET, JAVA, SQT, PHP, IBM Mainframe, Embedded Systems, SAS, ERP, AS400, SEO, Share Point, Oracle etc. HTS Provides 100 % job assistance. End
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