F4: DW Architecture and Lifecycle Erik Perjons, DSV, SU/KTH perjons@dsv.su.se The data warehouse architecture The back room The front room Analysis/OLAP Productt Product2 Product3 Product4 Time1 Time2 Time3 Time4 Value1 Value2 Value3 Value4 Value11 Value21 Value31 Value41 Data warehouse External sources Extract Transform Load Serve Query/Reporting Operational source systems Data marts Data mining Falö aöldf flaöd aklöd falö alksdf Operational source Data staging systems
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What is a Data Warehouse • A data warehouse is a relational database that is designed for query and analysis. • It usually contains historical data derived from transaction data, but it can include data from other sources. Finance, Marketing, • Data warehouse can be: Subject Oriented Integrated Nonvolatile Time Variant Inventory SAP, Weblogs, Legacy Identical reports produce same data for different period. daily/monthly/quarterly basis Why Data Warehouse • • • •
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1.1 Innovation leads to profitable growth if it: * Generates new profit pools * Increases demand for products and services * Attracts new customers * Opens new markets * Sustains the business for years to come 1.2 An information system collects, processes, stores, analyzes, and distributes information for a specific purpose of objective. Four basic functions of an IS are Input, Processing, Output, and Feedback. * Input: Data and information about business transactions
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Savvis, AppFog, and Quest in order to enhance its app development in the cloud. Opportunity/Duties My role as a Systems Engineer at CenturyLink involves discovering new data sources for new projects and how to incorporate this data into our data warehouse. Working closely with different business customers, I can get a full understanding of their requirements. Understanding requirements is very important because I am also involved in the implementation and verification of software that provides the
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NORAZASMIRABT OSMAN 2014192231 Chapter 6: Case 2 Data warehousing at REI: Understanding the customer 1. What is a data warehouse and why is REI building one? Data warehouse is a large store of data accumulates from a wide range of sources within a company used. It collects data from the customers to better understand the customer’s trends, needs, and preferences. It also helps company analysing the data collected and improve the management strategies and decision making process. 2
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the company the first ever United States (U.S) that reach that huge amount of sales. Costco merge with Price Club in year 1993 and came out with name of PriceCostco. Later, the name was changed to Costco Wholesale Corporation in August 1999.This warehouse club chain have 57 million members. It sales volumes only based on its members as it only open to their members and guests. Costco is the fourth largest retailer in the US and is the seventh largest in the world. Currently, Costco holding market
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Jennifer Wepking-Doeden BADM 482 Case 1 – Costco 7/14/14 Costco Case Analysis INTRODUCTION Costco’s mission statement reads: “The company will continue to pursue its mission of bringing the highest quality goods and services to market at the lowest possible prices while providing excellent customer service and adhering to a strict code of ethics that includes taking care of our employees and members, respecting our suppliers, rewarding our shareholders, and seeking to be responsible corporate
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Business Intelligence Applications Paul Villela CSCI 4304:Database Systems Dr. Carolyn W. Green 2 December 2014 Business Intelligence Applications On the May 4th, 2014 episode of Mad Men (appropriately entitled “The Monolith”, a clever nod to the iconic black monolith which provides the impetus for the evolutionary leap from beast to man in Arthur C Clarke’s novel “2001: A Space Odyssey”) Sterling Cooper & Partners, the fictional ad agency around which the show revolves, purchases
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S | W | O | T | | Slow sales growth over all (get %) | A super center move more into food distribution the gain a major cost advantage over Super Kmart and Super Target | Amazon competitor in e-commerce | Offer a wide variety of merchandise | Very saturated in the US so it should concentrate on other markets to continue growth | Online shopping is becoming very common | Target created a niche for itself by offering more upscale, fashionable merchandise . | Developed new apparel lines, such
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Wal-Mart uses is a DSS or a Decision Support System which is used primarily by executive management. Ever since Wal-Mart started using DSS, its profits and customer satisfaction ratings rose dramatically. Its DSS is also commonly known as a data warehouse, a digital hub where its entire customer related information is systematically stored for convenient use and streamlining operations (Ohlinger, 2006). This database is the world’s largest non-military database that provides value to both the business
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