By Margaret Y. Chu
Making solid judgements and taking applicable motion depends upon the power to retrieve and learn info speedy. This consultant goals to assist readers lay the foundation for extra effective info administration, unlocking the real worth of corporation wisdom.
Read Online or Download Blissful Data: Wisdom and Strategies for Providing Data That's Meaningful, Useful, and Accessible for All Employees PDF
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Extra info for Blissful Data: Wisdom and Strategies for Providing Data That's Meaningful, Useful, and Accessible for All Employees
Obtaining such reports posed another problem: it took a long time. It involved a process in which businesspeople had to write up their requests, wait for IT to accept, prioritize, schedule, develop, and eventually produce the reports. If the requestor was lucky or had a high priority, this process could take a week or two, if not; the report would arrive as much as months later, if at all. IT always had a backlog of requests. Thus, the idea of being able to question directly a data warehouse of blissful data and obtain answers in a few seconds seemed almost magical.
But, there are no such rules. To Data Mart or Not to Data Mart? 43 TABLE 2-1 ■ A Comparison of Data Marts versus an Enterprise Data Warehouse ■ Data Mart (DM) Enterprise Data Warehouse (EDW) 1. Defined set of functions – solves a specific set of departmental/ industry problems 1. Multifunction use – solves a multitude of problems (enterprise wide) 2. Departmental clients 2. Enterprise-wide clients 3. Mostly tactical decision support 3. Strategic and tactical decision support 4. Typically smaller volumes of data within the context of the enterprise 4.
And still provide the functionality and speed of data marts. Suppose there is a central group responsible for planning and organizing the data warehouse environment for the organization. This central group works with all the departments in the organization; it obtains the source data requirements, integrates the data, and loads it into a consolidated storage medium or EDW. Notice that this central group doesn’t have to work with all the business units at the same time and build the entire EDW all at once.