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

April 17, 2006Graphical Presentation of Information2 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.

April 17, 2006Graphical Presentation of Information3 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

April 17, 2006Graphical Presentation of Information4 Other Charting Principles Baldrige –Level, Trend, Benchmark Miscellaneous –Normalizing –“What if?” charts –Randomizing data

April 17, 2006Graphical Presentation of Information5 The Power of Charts

April 17, 2006Graphical Presentation of Information6 Computer Industry Revenues (first try)

April 17, 2006Graphical Presentation of Information7 Computer Industry Revenues (final version)

April 17, 2006Graphical Presentation of Information8 Are Salaries Administered Equitably? Compa-Ratio Comparison Salary Table People 979 U.S. Employees Salary Table People Salary Table 2 76 People Salary Table 3 32 People Performance Rating Within Geographic Region Compa-Ratio

April 17, 2006Graphical Presentation of Information9 Why is this Process Ineffective?

April 17, 2006Graphical Presentation of Information10 Which is the Best Selling Unit?

April 17, 2006Graphical Presentation of Information11 Are You Sure?

April 17, 2006Graphical Presentation of Information12 What Happened to the 80/20 Rule? ABCDEFGH $0 $100,000 $200,000 $300,000 $400,000 $500,000 $600,000 $700,000 $800, Field Repair Cost by Cause Cause Cost

April 17, 2006Graphical Presentation of Information13 Deming’s Funnel Experiment

April 17, 2006Graphical Presentation of Information14 Deming’s Red Bead Experiment

April 17, 2006Graphical Presentation of Information15 Make Your Own Control Charts

April 17, 2006Graphical Presentation of Information16 Make Your Own Run Charts

April 17, 2006Graphical Presentation of Information17 Make Your Own Run Charts

April 17, 2006Graphical Presentation of Information18 2 1/2 Factors in 2 Dimensions

April 17, 2006Graphical Presentation of Information19 3 Factors in 2 Dimensions

April 17, 2006Graphical Presentation of Information20 Use of the NOW Function

April 17, 2006Graphical Presentation of Information21 NOW and What if?

April 17, 2006Graphical Presentation of Information22 What’s the Best 401k Choice?

April 17, 2006Graphical Presentation of Information23 What If We Used Consultants? Increased Performance Current Situation Objective

April 17, 2006Graphical Presentation of Information24 Show Me the Important Stuff

April 17, 2006Graphical Presentation of Information25 What Would Tufte Say?