Autodesk Autocad Full 2012 Handbuch PDF herunterladen (Seite 3)

AutoCAD2011ProductivityStudy

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3 ©2010DavidS.Cohn

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Donewfeaturesresultinincreasedproductivity?

AutoCADwasfirstreleasedinDecember1982.Eachreleasesincethenhasofferednumerousnewfeatures

andfunctionsthathavecontributedtoimprovetheoverallproductivityandusefulnessofthesoftwarebeyond

eachpreviousrelease.

Onecouldarguethatbyupgradingtothelatestrelease,customerswouldactuallysavemoneybecause

the

featuresandfunctionsofthenewsoftwarewouldenablethemtocompletetheirworkfasterthanwouldbe

possiblehadtheyusedanearlierversionofthesoftware.Yetmanycustomersskipreleasesforeconomic

reasons.

Thequestionbecomesoneofquantifyingtheactualproductivityimprovementsausercould

reasonably

expecttoachievebyupgradingfromtheiroldversionofAutoCADtothelatestrelease.

DevelopingtheStudyCriteria

Inthespringof2010,AutodeskapproachedmetoconductaproductivitystudycomparingAutoCAD2008to

AutoCAD2011.IdevisedastudyinwhichanumberofdrawingstypicalofthoseproducedbyactualAutoCAD

customerswouldberecreatedmultipletimesusingbothAutoCAD2008andAutoCAD2011,utilizingfeatures

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andfunctionsjudgedtobethemostexpedientmethodforproducingthedesiredendresults.Thetime

requiredtocreateeachdrawingwouldberecordedusingastopwatchandroundedtothenearestminute.

Afterconsideringnearly100differentdrawingsproducedbyactualAutoCADusers,Iselectedeightdrawings,

mostofwhichIconcludedwouldrequireatypicaluseranywherefromanhourtohalfadaytocomplete.

Eachdrawingwaschosenbasedonanumberofcriteriadesignedtoshowcaseoneormorefeaturesofthe

softwarethatdidnotexistinAutoCAD2008butwereaddedin

subsequentreleases.Whileeachdrawingcould

certainlybeproducedusingthefeaturesandfunctionsavailableinAutoCAD2008,theadvancedcapabilities

addedinsubsequentreleaseswouldlikelyenableatypicalusertoproducethedrawingfasterusingAutoCAD

2011.

Sincethepremiseofthetestwastodeterminehowmuch

timecouldbesavedbyusinganewfeature,thetest

itselfwasalreadypredisposedtoshowthatusingAutoCAD2011ismoreproductivethanusingAutoCAD2008.

However,sinceeachofthedrawingsusedinthestudywasoriginallyproducedusingversionsofAutoCAD

predatingthe2008release,Iconcluded

thatthestudywouldpresentarealisticanalysisofthepro ductivity

gainsatypicalusercouldachieve.

Inordertoeliminateadditionalbiasesinthedesignofthestudy,suchasimprovementsinspeedsimplydueto

increasingfamiliaritywiththesampledrawings,someofthesampledrawingswereproduced

firstusingthe

2011releaseofthesoftwareandthenproducedusingAutoCAD2008,tiltinganysuchimprovementsinthe

favoroftheolderrelease.Eachdrawingwasalsoreproducedineachreleaseseveraltimesandonlythefastest

timeswereultimatelyincludedintheresults.

Inspiteoffocusingon

newfeatures,Iexpectedtoseeonlymodestreductionsinthetimerequiredtoproduce

thedrawingsinthenewerrelease.Ididnotexpecttoseedramaticimprovementsinoveralluserproductivity.

MostCADdrawingsconsistoflines,arcs,andcircles,andIreasonedthattherehavebeenvery

fewchanges

thatwouldimprovethespeedatwhichatypicaluserwouldbeabletocreateormodifytheobjectsthat

representthemajorityofatypicaldrawing.Afterall,howmuchfastercanyoudrawaline?

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