项目管理之进度计划.ppt

Exercise GOAL: To establish a schedule for the BOA ATM project based upon the WBS and estimates from the previous exercises. * * * * * * * PM07.* V2.1 Scheduling Fitting it all together into a timeline Objectives Identify tools and techniques used to schedule projects Describe the scheduling process Use the Precedence Diagram Method to develop network diagrams : PERT Integrate resources into the scheduling process Iterative Nature of Planning Goal Statement Resources Schedule Risks Work Budget Project Baseline Estimates Scheduling Steps Determine Task Dependencies Draw a Network Diagram Calculate the Critical Path Schedule Integrate Milestones into schedule Integrate Resources into schedule The first result is probably not the best one: this is an iterative process and needs to be repeated every time the estimates or the development environment changes Project Scheduling Tools Network Diagram Gantt Chart Histograms / Loading Charts Diagramming Techniques CPM - Critical Path Method PDM - Precedence Diagramming Method Critical Path Method A B C D E F Precedence Diagram B C J D E I H F G SF SS FF A K Activity-Identifier Duration Activity Description Responsible Person Slack/Float ES EF LS LF Labeling Activity Nodes Example: Precedence Diagram 2 21 Code Scheduler 1.3.1.1 20 P 0 2 21 13 23 Code Safety Interlock 1.3.2.1 11 D 11 2 12 22 27 Unit Test Scheduler 1.3.1.2 6 P 0 22 27 Unit Test Safety Interlock 1.3.2.2 4 P 11 13 16 24 27 Code Update PS 1.3.3.1 8 D 15 2 9 17 24 Unit Test Update PS 1.3.3.2 3 P 15 10 12 25 27 Thread Test 1.4.1 10 T 0 28 37 28 37 Phase Transition Rev. 1.2.3 1 All 0 1 1 1 1 Activity Description ID DUR SKILL SLACK ES EF LS LF Critical Path PDM Diagram B 5 D 1 C 4 E 6 A 3 F 2 Non-Calendar Forward Pass Consecutive Work Days Early start dates B D A F C E 5 1 4 6 3 2 1 3 4 8 9 9 4 7 9 14 15 16 Backward Pass Consecutive Work Days Late start dates 9 14 E 6 9 14 F 2 15 16 15 16 D 1 9 9 14 14 C 4 4 7 5 8 B 5 4 8 4