1. The document discusses best practices for data visualization and improving pie charts. It provides tips on using the proper chart type, displaying only necessary information, encoding data accurately including for colorblindness, highlighting important elements, and calculating measures. 2. The presentation demonstrates examples of good and bad pie charts, highlighting issues like using the wrong chart type or not accounting for colorblindness. It emphasizes reducing "ink factor" and focusing on relevant information. 3. The speaker advocates checking which chart types are used in reports, reducing unnecessary content, enriching reports with calculations, and calling users to action with insights from the data. The goal is to follow rules for reducing extraneous content while enriching reports.

1. My Favorite Pie
(Chart)
Improve Your Data Vizualization
Markus Ehrenmüller-Jensen,
Business Intelligence Architect, runtastic.com

2. Please silence
cell phones

3. Explore Everything PASS Has to Offer
FREE ONLINE WEBINAR EVENTS FREE 1-DAY LOCAL TRAINING EVENTS
LOCAL USER GROUPS
AROUND THE WORLD
ONLINE SPECIAL INTEREST
USER GROUPS
BUSINESS ANALYTICS TRAINING
VOLUNTEERING OPPORTUNITIES
PASS COMMUNITY NEWSLETTER
BA INSIGHTS NEWSLETTERFREE ONLINE RESOURCES

5. Session Evaluations
ways to access
Go to passSummit.com Download the GuideBook App
and search: PASS Summit 2016
Follow the QR code link displayed
on session signage throughout the
conference venue and in the
program guide
Submit by 5pm
Friday November 6th to
WIN prizes
Your feedback is
important and valuable. 3

6. Markus
Ehrenmüller-Jensen
BI Architect, runtastic.com
Microsoft Certified Solution Expert (MCSE)
Chapter Leader PASS Austria
Organizer SQL Saturday Vienna
markus.ehrenmueller@gmail.com
sqlederhose.wordpress.com
/markus-ehrenmueller @MEhrenmueller

8. The Good, The Bad and The Pie Chart
Rules
Demos
Agenda

9. The Good, …

10. The Bad, …

11. … and The Pie Chart

12. From Data to Action
Data
+ Context
+/- Pertinence
= Information
* Presentation
= Insight
1,234,567.89
Sales in EUR
1.2 Mio
Line Chart
Declining Sales
*
 Action Increase Marketing

13. 1. Use proper chart-type.
2. Display as few information as possible,
as much information as necessary.
3. Encode accurately.
4. Highlight important things.
5. Calculate measures.
You shall …
reducing
enriching

14. 1.Use proper chart-type.
Table
Bar/Columns
Line
Pie
Portfolio / Scatter
Map

15. Compare individual values
Precise values
Detail and summary
Several scales/units
vs. Chart
Patterns, Trend, Exceptions
Relationships
Table

16. Compare Values
Ranking
Part of the whole
Bar
Histogram
Column
Over Time
Bar/Column

17. Continuous values
Over time
Deviation
Correlation
Do not use for
Nominales (North, East, …)
Ordinales (1, 2, 3, …)
(use Bar/Column instead)
Line
0
20,000
40,000
60,000
80,000
100,000
120,000
140,000
160,000

18. Pie
Majority of (two) values

19. Many values
Two or three
measures
simultaneously
Spikes
Portfolio/Scatter

20. Heatmap
Mass of data points
Do not show
Simple data
Map
Source: http://www.salzburg24.at/2014/10/2014-10-06-13_37_45-11.-Runde-RBS-vs.-WRN-Heatmap.jpgSource: http://www.gsd.harvard.edu/gis/manual/lookup/

21. 27

22. Reduce “ink factor”
Information only
No useless decoration
Use proper scaling
Precision, mio, time, …
2.Display as few information as possible,
as much information as necessary.

26. Sorting order
Zero-based Charts
Reduce Colors
Meaningful
Shades of grey
Colorblindness (eg. vischeck.com)
www.colorbrewer.org
3.Encode accurately.

30. The Bad - Original

31. The Bad - Deuteranope

32. The Bad - Protanope

33. The Bad - Tritanope

34. The Pie Chart - Original

35. The Pie Chart - Deuteranope

36. The Pie Chart - Protanope

37. The Pie Chart - Tritanope

38. Text
Color
Symbol
Spot
Data Bar
Icon-Set
4.Highlight important things.

41. Display calculated values
5.Calculate measures.

42. Demo

43. The Good, …

44. The Bad, …

45. … and The Pie Chart

46. Solution
North America
Europe
Pacific
0.00% 0.50% 1.00% 1.50% 2.00%
Discount Pct

47. Check used chart types
Reduce your reports
Enrich your reports
Call to Action

48. 1. Use proper chart-type.
2. Display as few information as possible,
as much information as necessary.
3. Encode accurately.
4. Highlight important things.
5. Calculate measures.
Wrap up
reducing
enriching

49. Questions?
Markus Ehrenmüller-Jensen
Business Intelligence Architect
runtastic.com
Microsoft Certified Solution Expert (MCSE)
Chapter Leader PASS Austria
Organizer SQL Saturday Vienna
markus.ehrenmueller@gmail.com
sqlederhose.wordpress.com
@MEhrenmueller
/markus-
ehrenmueller

50. Session Evaluations
ways to access
Go to passSummit.com Download the GuideBook App
and search: PASS Summit 2016
Follow the QR code link displayed
on session signage throughout the
conference venue and in the
program guide
Submit by 5pm
Friday November 6th to
WIN prizes
Your feedback is
important and valuable. 3

51. Thank You
Learn more from
Markus Ehrenmüller-Jensen
markus.ehrenmueller@gmail.com
or follow @MEhrenmueller