第3章進(jìn)度計劃

1軟件項目管理路線圖10個計劃12111213項目初始項目計劃項目執(zhí)行項目結(jié)束范圍進(jìn)度成本質(zhì)量人力溝通風(fēng)險合同配置集成12345678910四個階段2Chapter3ProjectSchedule本章內(nèi)容進(jìn)度圖示計劃編制3.13.23.33.4校務(wù)通系統(tǒng)項目進(jìn)度資源圖示3.4.43.5歷時估算3.63.73Chapter3ProjectSchedule項目進(jìn)度3.13.23.3通過項目執(zhí)行的活動和里程碑制定的工作計劃日期表。定義WBS分解出的任務(wù)任務(wù)完成的時間點關(guān)系124Chapter3ProjectSchedule項目進(jìn)度3.13.23.3定義順序關(guān)系12AB結(jié)束開始AB結(jié)束結(jié)束AB開始開始AB開始結(jié)束依據(jù)強制依賴軟邏輯外部依賴5ExampleProjectPhase1Phase2PhasenStep1Step2Step1Step2Activity1.2Activity1.1Activity1.36ExampleHouseBuilding

LandscapingBuildingClearingSeedingPlantingProjectPhasesStepsRemoveStumpsRemoveTreesActivities7ExampleMilestonesinBuildingaHouseinPhase21.1Surveycomplete1.2Permitsissued1.3Excavationcomplete1.4Materialsonhand2.1Foundationlaid2.2Outsidewallscomplete2.3Exteriorplumbingcomplete2.4Exteriorelectricalworkcomplete2.5Exteriorsidingcomplete2.6Exteriorpaintingcomplete2.7Doorsandfixturesmounted2.8Roofcomplete3.1Interiorplumbingcomplete3.2Interiorelectricalworkcomplete3.3Wallboardinplace3.4Interiorpaintingcomplete3.5Floorcoveringlaid3.6Doorsandfixturesmounted8Chapter3ProjectSchedule進(jìn)度圖示3.4甘特圖12網(wǎng)絡(luò)圖CDM圖3棒狀圖三角圖PDMADM里程碑圖任務(wù)時間今天12計劃實際9GanttDiagram(BarChart)Sample10Chapter3ProjectSchedule進(jìn)度圖示3.4甘特圖12網(wǎng)絡(luò)圖CDM圖3棒狀圖三角圖PDMADM里程碑圖11PDMSample(2)開始需求獲取項目規(guī)劃需求確認(rèn)項目計劃評審總體設(shè)計詳細(xì)設(shè)計系統(tǒng)測試集成測試編碼結(jié)束12Chapter3ProjectSchedule進(jìn)度圖示3.4甘特圖12網(wǎng)絡(luò)圖CDM圖3棒狀圖三角圖PDMADM里程碑圖13ADMSample需求獲取總體設(shè)計需求確認(rèn)系統(tǒng)測試集成測試編碼詳細(xì)設(shè)計計劃評審項目規(guī)劃12369875414Chapter3ProjectSchedule進(jìn)度圖示3.4甘特圖12網(wǎng)絡(luò)圖CDM圖3棒狀圖三角圖ADM里程碑圖PDM規(guī)劃03/03/15需求03/03/30提交03/06/1015Chapter3ProjectSchedule資源圖示3.4.4人力1時間（周）2設(shè)備資源（工時）05010015013520015資源（機時）16ResourceDiagram17Chapter3ProjectSchedule歷時估算3.6因素12方法因素1實際工作時間項目人員規(guī)模生產(chǎn)率（LOC/天）有效工作時間連續(xù)工作時間人員級別歷史項目718Chapter3ProjectSchedule歷時估算3.6因素12方法方法V定額估算法經(jīng)驗導(dǎo)出模型工程評估評審技術(shù)專家估算法類推估算法模擬估算VV19Chapter3ProjectSchedule歷時估算3.6因素12方法定額估算法T=Q/（RXS）開發(fā)效率：單位時間完成的工作量人力或設(shè)備數(shù)量活動的工作量（人月、人天）活動的持續(xù)時間（小時、日、周）小規(guī)模項目120Chapter3ProjectSchedule歷時估算3.6因素12方法定額估算法T=Q/（RXS）S=1；（正常情況）2個開發(fā)人員6個人月T=6/(2x1)=3月S=1.5；（效率提高）S=2；（時間縮短）21Chapter3ProjectSchedule歷時估算3.6因素12方法經(jīng)驗導(dǎo)出D=axEb（b次冪）b1/3左右的參數(shù)工作量（人月）2～4進(jìn)度（月）大量項目數(shù)據(jù)222Chapter3ProjectSchedule歷時估算3.6因素12方法經(jīng)驗導(dǎo)出D=axEb（b次冪）b1/3工作量（人月）2～4進(jìn)度（月）大量項目數(shù)據(jù)2COCOMOa=2.5b=0.32-0.3823Chapter3ProjectSchedule歷時估算3.6因素12方法工程評估評審技術(shù)

（O+4M+P）/6P:活動完成最大估算值（最悲觀值）M:活動完成的最大可能估算值（最樂觀值）O:活動完成最小估算值大型項目324Chapter3ProjectSchedule歷時估算3.6因素12方法工程評估評審技術(shù)

（O+4M+P）/62,3,63２1A4,6,83B4,6,84CADM圖ABC項目最樂最可最悲PERT2433646863.3364.1713.525Chapter3ProjectSchedule歷時估算3.6因素12方法工程評估評審技術(shù)

（O+4M+P）/63標(biāo)準(zhǔn)差1.07?

風(fēng)險評估方差68.3%

給出項目在13.5+1.07=14.57天內(nèi)完成的概率26Chapter3ProjectSchedule計劃編制3.7關(guān)鍵路徑法123時間壓縮法資源調(diào)整補償法關(guān)鍵鏈路法34VXXX277.FloatFloatIntervalTerms1.ESEarlyStart2.LSLateStart3.EFEarlyFinish4.LFLateFinish5.LeadStartinadvance6.LagPostpone28SchedulePlanCompiling(CMP)FloatTimeIntervalFreeFloatTotalFloatCriticalPath

2.NoFloat1.MaxLengthConditions29SchedulePlanCompiling(CMP)Example1A:100DaysStartF:5DaysD:5DaysB:10DaysC:10DaysE:10DaysFinishLag=3Lead=3A,B,C,Dperformparallel,wecancalculate:TotalProjectFinishTimeis100days.A:ES=0,LS=0,LF=100,EF=100,NoFloat&MaxCMPB:ES=0,LS=90,LF=100,EF=10,Float=9030SchedulePlanCompiling(CMP)GeneralMethodES:EarliestStartLS:LatestStartEF:EarliestFinishLF:LatestFinishActivityDescriptionAnActivityDescriptionBlockActivityLabelDurationActivitySpan(跨度)Float31SchedulePlanCompiling(CMP)ForwardPassCalculatetheearliestdatesatwhichactivitiesmaycommence(開始)andtheprojectbecompletedBackwardPassCalculatethelateststartdatesforactivities32SchedulePlanCompiling(CMP)ForwardPassAnexampleprojectspecificationwithestimatedactivitydurationsandprecedence(優(yōu)先)requirementsActivityNoDurationPrecedentsABCDEFGHDescriptionHardwareSelectionSoftwareDesignInstallHardwareCode&TestFileTake-on(收集)WriteusermanualUserTrainingInstall&Testsystem64343103A2BBE,FC,D33SchedulePlanCompiling(CMP)StartA6wksB4wksF10wksD4wksE3wksC3wksH2wksG3wksFinishThePrecedencenetworkfortheexampleproject34SchedulePlanCompiling

ForwardPassRules:TheearlieststartdateforanactivityisthefinishDatefortheprecedingactivity.WherethereisMorethanoneimmediatelyprecedingactivitiesWetakethelatestoftheearliestfinishdatesforThoseactivities35SchedulePlanCompiling(CMP)StartA6wks06B4wks04F10wks010D4wks48E3wks47C3wks69H2wks911G3wks1013FinishThenetworkaftertheForwardPass36SchedulePlanCompiling

BackwardPassRules:ThelatestfinishdateforanactivityisthelatestStartdateforalltheactivitiesthatmaycommenceImmediatelythatactivityiscomplete.WheremorethanoneactivitycancommencewetaketheearliestoftheLateststartdatesforthoseactivities.37SchedulePlanCompiling(CMP