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InformationDashboardDesign
ByStephenFew
Publisher:O'Reilly
PubDate:January2006
ISBN:0‐596‐10016‐7
Pages:223
www.it-ebooks.info
Copyright
Copyright©2006StephenFewAllrights reserved.
PrintedinItaly.
PublishedbyO'ReillyMedia,Inc.1005GravensteinHighwayNorthSebastopol,CA95472
O'Reillybooksmaybepurchasedforeducational, business,orsalespromotionaluse.Onlineeditionsare
alsoavailableformosttitles(safari.oreilly.com).Formoreinformation,contactourcorporate/institutional
sales
department:800‐998‐9938orcorporate@oreilly.com.
Editor ColleenWheeler
ProductionEditor Genevieved'Entremont
ArtDirector MikeKohnke
CoverDesigner StephenFew
InteriorDesigners MikeKohnke,TerriDriscoll
ProductionServices SpecializedComposition,Inc.
PrintHistory
January2006: FirstEdition.
TheO'ReillylogoisaregisteredtrademarkofO'ReillyMedia,Inc.InformationDashboardDesignand
relatedtradedressaretrademarksofO'ReillyMedia,Inc.
Manyofthedesignationsusedbymanufacturersandsellerstodistinguishtheirproductsareclaimedas
trademarks.Wherethosedesignationsappearinthisbook,andO'Reilly
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trademarkclaim,thedesignationshavebeenprintedincapsorinitial caps.
Whileeveryprecautionhasbeentakeninthepreparationofthisbook,thepublisherandauthorassumeno
responsibilityforerrorsoromissions,orfordamagesresultingfromtheuseoftheinformation
contained
herein.
0‐596‐10016‐7
www.it-ebooks.info
Tomyparents,BobandJoyceFew,whoseprideinmyjourneyhoweverstrangethatjourneymusthave
sometimesseemedinstilleddeepdownintomybonestheresolvetokeepplacing onefootinfrontofthe
other.
www.it-ebooks.info
AbouttheAuthor
StephenFewhasover20yearsofexperienceasanITinnovator,consultant,andeducator.Today,as
PrincipaloftheconsultancyPerceptualEdge,Stephenfocusesondatavisualizationforanalyzingand
communicatingquantitativebusinessinformation.Heisworkingtoraiseconsciousnessandtoprovidea
treatmentplanthataddressestheneeds
ofbusinessinthelanguageofbusiness.Hispreviousbook,Show
MetheNumbers:DesigningTablesandGraphstoEnlighten,isapowerfulfitnessprogramdesignedto
targetthedatapresentationaspectsofthisproblem.
Today,fromhisofficeinBerkeley,California,Stephenprovidesconsultingandtrainingservices,speaks
frequently
atconferences,andteachesintheMBAprogramattheUniversityofCaliforniainBerkeley.
Moreabouthiscurrentworkcanbefoundatwww.perceptualedge.com
.
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Introduction
Fewphenomenacharacterizeourtimemoreuniquelyandpowerfully thantherapidriseandinfluenceof
informationtechnologies.Thesetechnologieshaveunleashedatsunamiofdatathatrollsoverandflattens
usinitswake.Tamingthisbeasthasbecomeaprimarygoaloftheinformationindustry.Onetoolthathas
emergedfromthiseffortinrecentyearsistheinformationdashboard.Thissingle‐screendisplayofthe
mostimportantinformationpeopleneedtodoajob,presentedinawaythatallowsthemtomonitor
what'sgoingoninaninstant,isapowerfulnewmediumofcommunication.Atleast
itcanbe,butonly
whenproperlydesigned.
Mostinformationdashboardsthatareusedinbusinesstodayfallfarshortoftheirpotential. Therootof
theproblemisnottechnologyatleastnotprimarilybutpoorvisualdesign.Toservetheirpurposeandfulfill
theirpotential,dashboardsmustdisplayadensearray
ofinformationinasmallamountofspaceina
mannerthatcommunicatesclearlyandimmediately.Thisrequiresdesignthattapsintoandleveragesthe
powerofvisualperceptiontosenseandprocesslargechunksofinformationrapidly.Thiscanbeachieved
onlywhenthevisualdesignofdashboardsis
centraltothedeve lopmentprocessandisinformedbyasolid
understandingofvisualperceptionwhatworks,whatdoesn't,andwhy.
Notechnologycandothisforyou.Youmustbringthisexpertisetotheprocess .Takeheartthevisualdesign
skillsthatyouneedtodevelopeffectivedashboardscanbelearned,and
helpingyoulearnthemisthesole
purposeofthisbook.
Iftheinformationisimportant,itdeservestobecommunicatedwell.
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Acknowledgments
WithoutadoubtIowethegreatestdebtofgratitudetothemanysoftwarevendorswhohavedoneso
muchtomakethisbooknecessarybyfailingtoaddressorevencontemplatethevisualdesignneedsof
dashboards.Theirkinddisregardforvisualdesignhasgivenmefocus,ignitedmypassion,
andguaranteed
mylivelihoodforyearstocome.
Now,ontothosewhohavecontributedmoredirectlyandpersonallytothiseffort.Asaman,Iwillneverbe
abletocreate,shelter,andnourishanemerginglifewithinthisbo dyofmine.Inrecentyears,however,I
haverecognized
andpursuedtheopportunity tobreathelifeintotheproductsofmyimaginationandpass
themontotheworldintheformofbooks.Writingabookisabitlikebearingachild.Workingwitha
publishertohelpthechildlearntowalkbeforeventuringintotheworld
isalessonintrust.Thefolksat
O'ReillyMediahavetaughtmetoentrusttothembeginningwithunspeakableangst,butproceeding
throughunfalteringstepstowardever‐increasingcomfortthecollegialcareofthisbelovedchild.Manyat
O'Reillyhavecontributedsomuch,buttwoinparticularhavestoodbymy
sidefromthebeginningwith
soothingvoicesofconfidenceandcalm.Myeditor,ColleenWheeler,knewwhentolisteninsilence,when
toteasemeoutofmyopia,andwhentogentlyremindmethatIwasinherconsiderateandconsiderable
care.Myacquisitionseditor,SteveWeiss,soughtmeout
andwooedmethroughmonthsofthoughtful
discussionintotheO'Reillyfold.Hegaveassurancesandhasmadesurethattheywerefulfilled.
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Sommario
Copyright 3
AbouttheAuthor 5
Introduction 6
Acknowledgments 7
Chapter1.ClarifyingtheVision 11
1.1.AllThatGlittersIsNotGold 12
1.2.EvenDashboardsHaveaHistory 14
1.3.DispellingtheConfusion 15
1.3.1.WhatIsaDashboard?
26
1.4.ATimelyOpportunity 28
Chapter2.VariationsinDashboardUsesandData 29
2.1.CategorizingDashboards 30
2.1.1.ClassifyingDashboardsbyRole 31
2.2.TypicalDashboardData 33
2.2.1.TheCommonThreadinDashboardDiversity 33
Chapter3.ThirteenCommonMistakesinDashboard
Design 38
3.1.ExceedingtheBoundariesofaSingleScreen 39
3.1.1.FragmentingDataintoSeparateScreens 40
3.1.2.RequiringScrolling 42
3.2.SupplyingInadequateContextfortheData 43
3.3.DisplayingExcessiveDetailorPrecision 45
3.4.ChoosingaDeficientMeasure 46
3.5.ChoosingInappropriateDisplayMedia 47
3.6.IntroducingMeaningles sVariety 51
3.7.UsingPoorlyDesignedDisplayMedia 52
3.8.EncodingQuantitativeDataInaccurately 56
3.9.ArrangingtheDataPoorly 56
3.10.HighlightingImportantDataIneffectivelyorNotatAll 57
3.11.ClutteringtheDisplaywith
UselessDecoration 58
3.12.MisusingorOverusingColor 61
3.13.DesigninganUnattractiveVisualDisplay 62
Chapter4.TappingintothePowerofVisualPerception 64
4.1.UnderstandingtheLimitsofShort‐TermMemory 65
4.2.VisuallyEncodingDataforRapidPerception 67
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4.2.1.AttributesofColor 69
4.2.2.AttributesofForm 70
4.2.3.AttributesofPosition 71
4.2.4.AttributesofMotion 71
4.2.5.EncodingQuantitati ve Versus CategoricalData 71
4.2.6.LimitstoPerceptualDistinctness 73
4.2.7.UsingVividandSubtleColorsAppropriately 74
4.3.GestaltPrinciples
ofVisualPerception 74
4.3.1.ThePrincipleofProximity 75
4.3.2.ThePrincipleofSimilarity 75
4.3.3.ThePrincipleofEnclosure 76
4.3.4.ThePrincipleofClosure 77
4.3.5.ThePrincipleofContinuity 78
4.3.6.ThePrincipleofConnection 78
4.4.Applyingthe
PrinciplesofVisualPerceptiontoDashboardDesign 79
Chapter5.EloquenceThroughSimplicity 80
5.1.CharacteristicsofaWell‐DesignedDashboard 81
5.1.1.CondensingInformationviaSummarizationandException 82
5.2.KeyGoalsintheVisualDesignProcess 83
5.2.1.ReducetheNon‐DataPixels
86
5.2.2.EnhancetheDataPixels 94
Chapter6.EffectiveDashboardDisplayMedia 101
6.1.SelecttheBestDisplayMedium 102
6.2.AnIdealLibraryofDashboardDisplayMedia 106
6.2.1.Graphs 107
6.2.2.Icons 131
6.2.3.Text 133
6.2.4.Images
133
6.2.5.DrawingObjects 134
6.2.6.Organizers 135
6.3.Summary 137
Chapter7.DesigningDashboardsforUsability 138
7.1.OrganizetheInformati ontoSupportItsMeaningandUse 139
7.1.1.OrganizeGroupsA ccordingtoBusinessFunctions,Entities,andUse 139
7.1.2.Co‐locate
ItemsThatBelongtotheSameGroup 139
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7.1.3.DelineateGroupsUsingtheLeastVisibleMeans 140
7.1.4.SupportMeaningfulComparisons 141
7.1.5.DiscourageMeaninglessComparisons 142
7.2.MaintainConsistencyforQuickandAccurateInterpretation 143
7.3.MaketheViewingExperienceAestheticallyPleasing 143
7.3.1.ChooseColorsAppropriately 144
7.3.2.ChooseHighResolution
forClarity 145
7.3.3.ChoosetheRightText 145
7.4.DesignforUseasaLaunchPad 145
7.5.TestYourDesignforUsability 146
Chapter8.PuttingItAllTogether 147
8.1.SampleSalesDashboard 148
CritiqueofSalesDashboardExample1 151
Critique
ofSalesDashboardExample2 152
CritiqueofSalesDashboardExample3 153
CritiqueofSalesDashboardExample4 154
CritiqueofSalesDashboardExample5 155
CritiqueofSalesDashboardExample6 156
CritiqueofSalesDashboardExample7 157
CritiqueofSales
DashboardExample8 158
8.2.SampleCIODashboard 159
8.3.SampleTelesalesDashboard 161
8.4.SampleMarketingAnalysisDashboard 162
8.5.AFinalWord 164
AppendixA.RecommendedReading 165
Colophon 166
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[...]... Richard Brath and Michael Peters, "Dashboard Design: Why Design is Important," DM Direct, October 2004 www.it-ebooks.info Chapter 2. Variations in Dashboard Uses and Data Dashboards can be used to monitor many types of data and to support almost any set of objectives business deems important. There are many ways to categorize dashboards into various types. The way that relates most directly to a dashboard' s visual design involves the role it plays, whether strategic, analytical, or ... operational. The design characteristics of the dashboard can be tailored to effectively support the needs of each of these roles. While certain differences such as these will affect design, there are also many commonalities that span all dashboards and invite a standard set of design practices. www.it-ebooks.info Categorizing dashboards Common threads in dashboard data Non‐quantitative dashboard data ... Many people think of dashboards and KPIs as nearly synonymous. It is certainly true that dashboards are a powerful medium for presenting KPIs, but not all quantitative information that might be useful on a dashboard belongs to the list of defined KPIs. In fact, not all information that is useful on dashboards is even quantitativethe critical information needed to do a job cannot always be expressed numerically. Although most information that typically finds its way onto a dashboard is quantitative, some types of non‐... that same article in DM Direct: The real value of dashboard products lies in their ability to replace hunt‐and‐peck data‐gathering techniques with a tireless, adaptable, information flow mechanism. Dashboards transform data repositories into consumable information. 1 Dashboards aren't all that different from some of the other means of presenting information, but when properly designed the single‐screen display of integrated and finely tuned data can deliver insight in an ... work better is counterproductive. Dashboards are customized. The information on a dashboard must be tailored specifically to the requirements of a given person, group, or function; otherwise, it won't serve its purpose. A dashboard is a type of display, a form of presentation, not a specific type of information or technology. Keep this distinction clear, and you will be freed to focus on what really matters: designing dashboards to ... given to their visual design. This book strives to fill this gap. However, confusion abounds, demanding a clear definition of dashboards before we can explore the visual design principles and practices that must be applied if they are to live up to their unique promise. www.it-ebooks.info Problems with dashboards today Dashboards in historical context Current confusion about what dashboards are ... Dashboards can provide a unique and powerful means to present information, but they rarely live up to their potential. Most dashboards fail to communicate efficiently and effectively, not because of inadequate technology (at least not primarily), but because of poorly designed implementations. No matter how great the technology, a dashboard' s success as a medium of communication is a product of design, a result of a display that speaks clearly and immediately. Dashboards can tap into the tremendous power of visual ... Gregory L. Hovis, "Stop Searching for InformationMonitor it with Dashboard Technology," DM Direct, February 2002. Mark Leon, "Dashboard Democracy," Computerworld, June 16, 2003 3 By including these examples from the web sites of software vendors and a few other sources, I do not mean to endorse any of these dashboards or the software products used to create them as examples of good design, nor as extraordinary examples of poor design. To varying degrees they all exhibit visual design problems that I'll address in ... around to see all the information, it has transgressed the boundaries of a dashboard. If you must shift from screen to screen to see it all, you've made use of multiple dashboards. The object is to have the most important information readily and effortlessly available so you can quickly absorb what you need to know. Must the information be displayed in a web browser? That might be the best medium for most dashboards today, but it isn't the only acceptable medium, and it might not be the best medium 10 ... dashboard can support. However, this is the only classification that significantly relates to differences in visual design. 2.1.1.1. Dashboards for strategic purposes The primary use of dashboards today is for strategic purposes. The popular "executive dashboard, " and most of the dashboards that support managers at any level in an organization, are strategic in nature. They provide the quick overview that decision makers need to monitor the health and opportunities of the business. Dashboards of this type focus on high‐level measures of performance, including forecasts to light . 78
4.4.Applyingthe
PrinciplesofVisualPerceptionto Dashboard Design 79
Chapter5.EloquenceThroughSimplicity 80
5.1.CharacteristicsofaWell‐Designed Dashboard 81
5.1.1.Condensing Information viaSummarizationandException. thantherapidriseandinfluenceof
information technologies.Thesetechnologieshaveunleashedatsunamiofdatathatrollsoverandflattens
usinitswake.Tamingthisbeasthasbecomeaprimarygoalofthe information industry.Onetoolthathas
emergedfromthiseffortinrecentyearsisthe information dashboard. Thissingle‐screendisplayofthe
mostimportant information peopleneedtodoajob,presentedinawaythatallowsthemtomonitor
what'sgoingoninaninstant,isapowerfulnewmediumofcommunication.Atleast
itcanbe,butonly
whenproperlydesigned.
Most information dashboardsthatareusedinbusinesstodayfallfarshortoftheirpotential. Therootof
theproblemisnottechnologyatleastnotprimarilybutpoorvisual design. Toservetheirpurposeandfulfill
theirpotential,dashboardsmustdisplayadensearray
of information inasmallamountofspaceina
mannerthatcommunicatesclearlyandimmediately.Thisrequires design thattapsintoandleveragesthe
powerofvisualperceptiontosenseandprocesslargechunksof information rapidly.Thiscanbeachieved
onlywhenthevisual design ofdashboardsis
centraltothedeve
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