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Graphical Presentation of Information IBM Mid-Peninsula PC Club Pat McMahon April 17, 2006

Learn about the principles and techniques of graphical presentation of information, including resolution, consistency, and the power of charts. Explore various charting principles and examples from different industries. Discover how to effectively present data using visual elements and enhance the viewer's understanding. References to Edward Tufte's works on data visualization provided.

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Graphical Presentation of Information IBM Mid-Peninsula PC Club Pat McMahon April 17, 2006

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  1. Graphical Presentation of InformationIBM Mid-Peninsula PC ClubPat McMahonApril 17, 2006 Graphical Presentation of Information

  2. References • The Guru - Edward Tufte • (1983). The Visual Display of Quantitative Information. Cheshire: Graphics Press. • (1990). Envisioning Information. Cheshire: Graphics Press. • (1997). Visual Explanations: Images and Quantities, Evidence and Narrative. Cheshire: Graphics Press. • Microsoft Corp. (1997). Excel97 Worksheet Function Reference. Redmond: Microsoft Press. • Hawley, David and Raina (2004). Excel Hacks. Sebastopol: O’Reilly Media. Graphical Presentation of Information

  3. Tufte Basic Principles • Resolution • Photographic film can hold the most information per unit of area • Video displays hold the least • PowerPoint slides can encourage “PP Phluff” (and so can video displays and web pages) • Therefore, don’t waste real estate on “non-value-add” content • Less ink • Use gridlines, borders, boxes, etc. sparingly • Small replicates • For “dashboards,” “balanced scorecards,” etc., strive for consistency of format from chart to chart Graphical Presentation of Information

  4. Other Charting Principles • Baldrige • Level, Trend, Benchmark • Miscellaneous • Normalizing • “What if?” charts • Randomizing data Graphical Presentation of Information

  5. The Power of Charts Graphical Presentation of Information

  6. Computer Industry Revenues(first try) Graphical Presentation of Information

  7. Computer Industry Revenues(final version) Graphical Presentation of Information

  8. Are Salaries Administered Equitably? Compa-Ratio Comparison 1.40 979 U.S. Employees 1.20 1.12 1.08 1.08 1.06 1.05 1.04 1.05 1.04 1.03 1.01 1.01 1.00 1.00 Compa-Ratio .80 .60 1 2 3 1 2 3 1 2 3 1 2 3 Salary Table 1 Salary Table 2 Salary Table 3 Salary Table 4 309 People 562 People 76 People 32 People Performance Rating Within Geographic Region Graphical Presentation of Information

  9. Why is this Process Ineffective? Graphical Presentation of Information

  10. Which is the Best Selling Unit? Graphical Presentation of Information

  11. Are You Sure? Graphical Presentation of Information

  12. What Happened to the 80/20 Rule? Field Repair Cost by Cause $800,000 1800 1600 $700,000 1400 $600,000 1200 $500,000 Cost 1000 $400,000 800 $300,000 600 $200,000 400 $100,000 200 $0 0 A B C D E F G H Cause Graphical Presentation of Information

  13. Deming’s Funnel Experiment Graphical Presentation of Information

  14. Deming’s Red Bead Experiment Graphical Presentation of Information

  15. Make Your Own Control Charts Graphical Presentation of Information

  16. Make Your Own Run Charts Graphical Presentation of Information

  17. Make Your Own Run Charts Graphical Presentation of Information

  18. 2 1/2 Factors in 2 Dimensions Graphical Presentation of Information

  19. 3 Factors in 2 Dimensions Graphical Presentation of Information

  20. Use of the NOW Function Graphical Presentation of Information

  21. NOW and What if? Graphical Presentation of Information

  22. What’s the Best 401k Choice? Graphical Presentation of Information

  23. What If We Used Consultants? Increased Performance Objective Current Situation Graphical Presentation of Information

  24. Show Me the Important Stuff Graphical Presentation of Information

  25. What Would Tufte Say? Graphical Presentation of Information

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