軟件工作量估算

1、 PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI

2、-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEVPlanningDataSG1 EstablishEstimates建立估算建立估算SG3 ObtainCommitmentto the

3、 Plan獲得對計劃的承諾獲得對計劃的承諾SG2 Develop a Project Plan制定項目計劃制定項目計劃Project PlansPMC PROCESS IMPROVEMENT BASED ON CMMI-DEV Determine Estimates of Effortand Cost 估算項目估算項目 工作量和成本工作量和成本PlanningDataSG1 Establish Estimates Estimate the Scope of the Project 估計項目范圍估計項目范圍 EstablishEstimates of Work Product and Task

4、Attributes 對工作產(chǎn)品對工作產(chǎn)品 和任務(wù)估算和任務(wù)估算 Define ProjectLife Cycle 定義項目定義項目 生命周期生命周期 PROCESS IMPROVEMENT BASED ON CMMI-DEV Establish the BudgetandSchedule 建立項目建立項目 預(yù)算進度預(yù)算進度Planning DataSG2 Develop a Project Plan Planfor DataManagement 策劃數(shù)據(jù)管理策劃數(shù)據(jù)管理 Plan StakeholderInvolvement 涉眾參與計劃涉眾參與計劃 Plan forProjectResou

5、rces 項目資源計劃項目資源計劃Project Plans Establishthe ProjectPlan 制定項目計劃制定項目計劃 IdentifyProject Risks 識別項目風(fēng)險識別項目風(fēng)險 Plan forNeededKnowledge and Skills 計劃所需計劃所需 知識和技能知識和技能 PROCESS IMPROVEMENT BASED ON CMMI-DEVSG3 Obtain Commitment to the Plan ReconcileWork andResourceLevels 配備工作與資源配備工作與資源ProjectPlans ReviewPlans

6、 that Affect the Project 評審項目計劃評審項目計劃 ObtainPlanCommitment 獲得對計劃獲得對計劃 的承諾的承諾 PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI

7、-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEV組建專家組組建專家組系統(tǒng)介紹系統(tǒng)介紹系統(tǒng)分解系統(tǒng)分解設(shè)定額定偏差設(shè)定額定偏差(S)提交估計結(jié)果提交估計結(jié)果計算均值計算均值(AVG)取最大值取最大值(MX)，最，最小值（小值（MN)計算估計偏差計算估計偏差(V)估計偏差討論估計偏差討論 PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEVDelphiDelphiPERTPERT準確度準確度

8、受個體意志影響小，有利于獨立思考受個體意志影響小，有利于獨立思考和逐步明確。估計結(jié)果較準確。和逐步明確。估計結(jié)果較準確。受人為因素影響大，準確度稍差。受人為因素影響大，準確度稍差?？刹僮餍钥刹僮餍怨ぷ髁客度胼^高，估算時間較長。工作量投入較高，估算時間較長。容易操作和理解，用時較短。容易操作和理解，用時較短。適合項目適合項目適用于項目啟動階段初步估算。適用于項目啟動階段初步估算。適用于工期緊迫或項目中后期的重新適用于工期緊迫或項目中后期的重新估算。估算。 PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI

9、-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEV1.Each UCP should be converted

10、 into 20 hours of work. 2.Ranges the amount of time to be allocated per use case to between 20 and 28 hours. PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEV P

11、ROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI-D

12、EV PROCESS IMPROVEMENT BASED ON CMMI-DEV 版權(quán)所有，不得復(fù)制版權(quán)所有，不得復(fù)制 50 PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS I

13、MPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPROVEMENT BASED ON CMMI-DEV PROCESS IMPR