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Data warehouse


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Introduction to data warehouse

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Data warehouse

  1. 1. The Data Warehouse: Home for Your Submitted by: DataLOGO Assets Rishabh Dogra1/26/2012 1 R3-
  2. 2. Outline Expectations Data Warehouse / Data Dump The Historical Perspective Is Bigger the Better History About Data wareho use1/26/2012 2
  3. 3. What Is A Data Warehouse? “It is a home for high-value data, or data assets, that originates in corporate applications”1/26/2012 3
  4. 4. What Is Data Warehousing? “Data warehousing is the coordinated, architected, and periodic copying of data from various sources, both inside and outside the enterprise, into an environment optimized for analytical and informational processing despite platform, application, organizational, and other barriers.”  A Data Warehouse Is  Centralized  Well-managed Environment  Consistent And Redundant Processes  Open And Scalable Architecture  Process The Data Into Information1/26/2012 4
  5. 5. History 2000’s The Adult 1990’s The Adolescent 1980’s The Birth 1970’s The Preparation •Dominated by •PCs PCs & •Computing •Cost Effective Mainframe. More PC’s went Solutions •Continually •Islands of Data. Mainstream •Data bothering the •Concept of •Client/ warehouse Data-processing DDMS & RDMS server solutions Department. •Birth Place for technology embedded in •Concept of data warehouse software suits Tera Data Innovations •Plug1/26/2012 5 Compatible
  6. 6. Is a Bigger Data Warehouse a BetterData Warehouse? The size of a data warehouse is a characteristic — “almost a by-product” — of a data warehouse; it’s not an objective. The Function Contents ality Business Volume Objective1/26/2012 6
  7. 7. Historical Perspective TIME LAG1/26/2012 7
  8. 8. It’s Data Warehouse, Not Data Dump1/26/2012 8
  9. 9. Expectations from Data Warehouse Tool To Make Better Business Decisions Who are our lowest or highest margin customers ? Who are my customers What is the most and what products effective distribution are they buying? channel? What promotions Which customers have the biggest impact are most likely to go on revenue? to the competition ? What impact will new products/services have on revenue and margins?1/26/2012 9
  10. 10. Expectations from Data Warehouse Finding data at your Finger Tips1/26/2012 10
  11. 11. Expectations from Data Warehouse Facilitating Better Communications Among Different Business Units •IT - BUSINESS ORGANIZATION COMMUNICATION IT Side Business Users Issues Complaints  Unrealistic  Developers have no idea about business request  Unnecessary  No participation during features development and  IT is too slow in testing responding to  Technology- requests for support. challenged1/26/2012 11
  12. 12. Expectations from Data Warehouse Facilitating Better Communications Among Different Business Units •COMMUNICATION ACROSS BUSINESS ORGANIZATION1/26/2012 12
  13. 13. Expectations from Data Warehouse Facilitates Business Change Act as an early-warning system. Provide insight into key areas that can help to make Strategic decisions  Facilitates decision making eg: which products you want to keep in stock.  Facilitates to make data-based decisions1/26/2012 13
  14. 14. May I help you with any clarifications?1/26/2012 14