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Alice’s Adventures in Reporting Services Presenter: Jen Stirrup, Contact: [email protected] SQLBits VII Saturday 2 nd October, 2010
Alice’s Adventures in Reporting ServicesPresenter: Jen Stirrup, Contact: [email protected] VIISaturday 2nd October, 2010
Agenda
• Business Intelligence and the Red Queen’s Race• ‘you want to get somewhere… you must run at least twice as fast
as that!’
Agenda
• Business Intelligence and the Red Queen’s Race• ‘you want to get somewhere… you must run at least twice as fast
as that!’
• Business Intelligence and Alice’s Question• ‘What is the use of a book, without pictures?’
Agenda
• Business Intelligence and the Red Queen’s Race• ‘you want to get somewhere… you must run at least twice as fast
as that!’
• Business Intelligence and Alice’s Question• ‘What is the use of a book, without pictures?’
• Practical Applications – the Doorknob • ‘Read the directions and directly you will be directed in the right
direction.’
• Over to you!
Reporting and the Red Queen
Reporting and the Red Queen
Why not just tables?Zimbabwean inflation rates (official) since independenceDate Rate Date Rate Date Rate Date Rate Date Rate Date Rate
1980 7% 1981 14% 1982 15% 1983 19% 1984 10% 1985 10%
1986 15% 1987 10% 1988 8% 1989 14% 1990 17% 1991 48%
1992 40% 1993 20% 1994 25% 1995 28% 1996 16% 1997 20%
1998 48% 1999 56.9% 2000 55.22% 2001 112.1% 2002 198.93% 2003 598.75
%
2004 132.75% 2005 585.84
% 2006 1,281.11% 2007 66,212.
3% 2008231,150,888.87% (July)
Thinking with your Eyes
Stages of Processing
Stages of Processing
Pre-attentive Attributes
Attribute Example Assumption
Spatial Position
2D Grouping2D Position
Sloping to the right = Greater
Form LengthWidthOrientationSize
Longer = GreaterHigher = Greater
Colour HueIntensity
Brighter = GreaterDarker = Greater
Pre-attentive Attributes
Attribute Example Graph Type
Spatial Position
2D Grouping2D Position
Line Graph
Form LengthWidthOrientationSize
Bar Chart
Colour HueIntensity
Scatter Chart
Stages of Processing
Visual Integration
•Chartjunk•Data/Ink Ratio
Mobilising Visual Integration
•Affordance • Highlighting – bright colours• Increasing Intensity = Increasing
Values• Eye Tracking Studies• Eye Path going from cluster to legend,
and back again (Ratwani, 2008)
Mobilising Visual Integration
• Sequential Palettes
•Diverging Palettes
• Qualitative Palettes
Visual Integration
Stages of Processing
Cognitive Integration
•Building an understanding of the graph•Eye Tracking Studies•Eye Path going from cluster to cluster, rather than cluster to legend (Ratwani, 2008)
Cognitive Integration
•Summary first•Zoom and filter•Then details ‘on-demand’
• (Schneiderman, 1999)
Cognitive Integration
•Comparison•Sorting•Bookmarks – analytical view of browsing
Mobilising Cognitive Integration•Humans are not good at judging:•2D Area•Angles
Mobilising Cognitive Integration•Humans are not good at judging:•2D Area•Angles•Pie Charts and Gauges rely on these characteristics…
Lost Finale: Mins Breakdown
Bullet Chart
Text Label Bar to display Performance measure
Marker to display Comparative measure
Bar Chart Example - Original
Dot Plot Example
Bullet Graph Example
Summary
•Reporting and the Red Queen’s Race•Three Stages of Processing•Some Practical Suggestions!•Over to you!
Coming up…P/X001Understanding and Preventing SQL Injection AttacksKevin KlineP/L001SSIS FieldnotesDarren GreenP/L002The (Geospatial) Shapes of Things to ComeSimon MunroP/L005End to End Master Data Management with SQL Server Master Data ServicesJeremy KashelP/T007Understanding Microsoft Certification in SQL ServerChris Testa-O'Neill
#SQLBITS
References• Information Visualisation, Perception For Design, Second Edition, Colin
Ware, Morgan Kaufmann Publishers, San Francisco CA. • Cleveland, W.S. The elements of graphing data. Wadsworth Advanced
Books and Software, Monterey, Canada, 1985• Treisman, A. Features and Objects in visual processing. Scientific American,
255(2): 114 - 125, 1986 • Navigation-related structural change in the hippocampi of taxi drivers,
MacGuire et al 1999• Chartjunk image used 80 4-point "ley lines" pass through 137 random
points. Original raster image by The Anome, vectors by Mysid. http://commons.wikimedia.org/wiki/File:Ley_lines.svg for details. This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
References• Raj M. Ratwani, J. Gregory Trafton, Deborah A. Boehm-Davis (2008).
Thinking graphically: Connecting vision and cognition during graph comprehension. Journal of Experimental Psychology: Applied, 14 (1), 36-49 DOI:
• Stuart K. Card, Jock D. Mackinlay, and Ben Shneiderman, Readings in Information Visualization: Using Vision to Think, Academic Press, San Diego, California, 1999, quoting a research paper by Kumar, Plaisant, and Shneiderman.)
• Visual Explanations, Edward Tufte (1997)
