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DATA WAREHOUSINGRequirements                   1
2
Technology is important; business value is    mandatory.   Define enterprise-level business    requirements   Prioritize...
   What is the problem area?   How does the business you approach it?   Is the data available?   Who will use the resu...
   Give me the annual revenue of all my    product lines divided over all the sales    regions over the last 3 years5
   Give me the top 10 of most profitable    products this year6
   Give me the top 10 of most sold    products of last year7
   Give me the top 10 of most profitable    customers8
   Compare the YTD revenue with the one    in the same period last year and the    target9
    Collecting the Requirements      Interviews       ▪ With individuals (or very small groups)      Facilitated Sessio...
   Each one takes more time than interviews,     but may generate more    Requires an experienced facilitator    Requir...
Prepare          Conduct                   Conduct IT     Business Interviews            Interviews      Use Data Profiles...
   Business Executive          What are the business issues?          What is your vision?        Business Manager or ...
    Interviews      Interview Team         ▪ lead interviewer, scribe, observers        Conducting the Pre-interview Re...
Process            Date Product Vendor   Shipper Dist   Store   Promo                                                 Cntr...
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2 dw requeriments

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Requerimientos DW

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Transcript of "2 dw requeriments"

  1. 1. DATA WAREHOUSINGRequirements 1
  2. 2. 2
  3. 3. Technology is important; business value is mandatory. Define enterprise-level business requirements Prioritize business requirements Plan the project Define project-level business requirements
  4. 4.  What is the problem area? How does the business you approach it? Is the data available? Who will use the results? Who cares?
  5. 5.  Give me the annual revenue of all my product lines divided over all the sales regions over the last 3 years5
  6. 6.  Give me the top 10 of most profitable products this year6
  7. 7.  Give me the top 10 of most sold products of last year7
  8. 8.  Give me the top 10 of most profitable customers8
  9. 9.  Compare the YTD revenue with the one in the same period last year and the target9
  10. 10.  Collecting the Requirements  Interviews ▪ With individuals (or very small groups)  Facilitated Sessions ▪ Brainstorming with a larger group led by a facilitator10
  11. 11.  Each one takes more time than interviews, but may generate more  Requires an experienced facilitator  Requires an initial understanding of the user area  Participants feed of of each others ideas  Participants can negotiate disagreements11
  12. 12. Prepare Conduct Conduct IT Business Interviews Interviews Use Data Profiles to Research Data Sources Write up Interview Summaries Identify Business Processes Build Initial Bus Matrix Conduct Prioritization Session Write Requirements Definition12
  13. 13.  Business Executive  What are the business issues?  What is your vision?  Business Manager or Analyst  What are your measures of success?  What data do you use?  What analysis do you typically do?  IS Data Audit  Data quality or quantity issues?  Potential roadblocks (political or technical)?  How is ad hoc analysis conducted?13
  14. 14.  Interviews  Interview Team ▪ lead interviewer, scribe, observers  Conducting the Pre-interview Research  Selecting the Interviewees  Developing the Interview Questionnaires  Scheduling the Interviews  Preparing the Interviewees  Conducting the Interviews ▪ Interviewer Rules ▪ Remember your Interview Role ▪ Verify Communications ▪ Define Terminology ▪ Establish Peer Basis ▪ Maintain Schedule Flexibility ▪ Avoid Interview Burnout ▪ Manage Expectations Continuously14
  15. 15. Process Date Product Vendor Shipper Dist Store Promo CntrPurchase X X X XOrdersDist Cntr X X X X XDeliveriesDst Cntr X X XInventoryStore Deliveries X X X X XStore Inventory X X XStore Sales X X X X15
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