AutoCAD2011ProductivityStudy
3 ©2010DavidS.Cohn
Donewfeaturesresultinincreasedproductivity?
AutoCADwasfirstreleasedinDecember1982.Eachreleasesincethenhasofferednumerousnewfeatures
andfunctionsthathavecontributedtoimprovetheoverallproductivityandusefulnessofthesoftwarebeyond
eachpreviousrelease.
Onecouldarguethatbyupgradingtothelatestrelease,customerswouldactuallysavemoneybecause
the
featuresandfunctionsofthenewsoftwarewouldenablethemtocompletetheirworkfasterthanwouldbe
possiblehadtheyusedanearlierversionofthesoftware.Yetmanycustomersskipreleasesforeconomic
reasons.
Thequestionbecomesoneofquantifyingtheactualproductivityimprovementsausercould
reasonably
expecttoachievebyupgradingfromtheiroldversionofAutoCADtothelatestrelease.
DevelopingtheStudyCriteria
Inthespringof2010,AutodeskapproachedmetoconductaproductivitystudycomparingAutoCAD2008to
AutoCAD2011.IdevisedastudyinwhichanumberofdrawingstypicalofthoseproducedbyactualAutoCAD
customerswouldberecreatedmultipletimesusingbothAutoCAD2008andAutoCAD2011,utilizingfeatures
andfunctionsjudgedtobethemostexpedientmethodforproducingthedesiredendresults.Thetime
requiredtocreateeachdrawingwouldberecordedusingastopwatchandroundedtothenearestminute.
Afterconsideringnearly100differentdrawingsproducedbyactualAutoCADusers,Iselectedeightdrawings,
mostofwhichIconcludedwouldrequireatypicaluseranywherefromanhourtohalfadaytocomplete.
Eachdrawingwaschosenbasedonanumberofcriteriadesignedtoshowcaseoneormorefeaturesofthe
softwarethatdidnotexistinAutoCAD2008butwereaddedin
subsequentreleases.Whileeachdrawingcould
certainlybeproducedusingthefeaturesandfunctionsavailableinAutoCAD2008,theadvancedcapabilities
addedinsubsequentreleaseswouldlikelyenableatypicalusertoproducethedrawingfasterusingAutoCAD
2011.
Sincethepremiseofthetestwastodeterminehowmuch
timecouldbesavedbyusinganewfeature,thetest
itselfwasalreadypredisposedtoshowthatusingAutoCAD2011ismoreproductivethanusingAutoCAD2008.
However,sinceeachofthedrawingsusedinthestudywasoriginallyproducedusingversionsofAutoCAD
predatingthe2008release,Iconcluded
thatthestudywouldpresentarealisticanalysisofthepro ductivity
gainsatypicalusercouldachieve.
Inordertoeliminateadditionalbiasesinthedesignofthestudy,suchasimprovementsinspeedsimplydueto
increasingfamiliaritywiththesampledrawings,someofthesampledrawingswereproduced
firstusingthe
2011releaseofthesoftwareandthenproducedusingAutoCAD2008,tiltinganysuchimprovementsinthe
favoroftheolderrelease.Eachdrawingwasalsoreproducedineachreleaseseveraltimesandonlythefastest
timeswereultimatelyincludedintheresults.
Inspiteoffocusingon
newfeatures,Iexpectedtoseeonlymodestreductionsinthetimerequiredtoproduce
thedrawingsinthenewerrelease.Ididnotexpecttoseedramaticimprovementsinoveralluserproductivity.
MostCADdrawingsconsistoflines,arcs,andcircles,andIreasonedthattherehavebeenvery
fewchanges
thatwouldimprovethespeedatwhichatypicaluserwouldbeabletocreateormodifytheobjectsthat
representthemajorityofatypicaldrawing.Afterall,howmuchfastercanyoudrawaline?