Presentation on theme: "Eleanor Roosevelt High School"— Presentation transcript:
1 Eleanor Roosevelt High School Chin-Sung LinProject Management
2 Project Time Management Activity Sequencing and Network DiagramsActivity on Arrow (AOA) Network DiagramsPrecedence Diagram Method (PDM)Gantt ChartsCritical Path Method (CPM)GanttProject Tool
3 Activity Sequencing and Network Diagrams Review activities and determine dependencies of project activities or tasksDetermine dependencies in order to use critical path analysisNetwork diagrams are used for showing activity sequencingA network diagram is a schematic display of the logical relationships among, or sequencing of, project activities
4 Network Diagrams Two popular network diagrams: Activity on Arrow (AOA) network diagrams or Arrow diagramming method (ADM)Project network diagrams or Precedence Diagram Method (PDM)
5 Activity on Arrow (AOA) Network Diagrams Also called Arrow Diagramming Method (ADM)A network diagram in which activities are represented by arrowsADM is used for scheduling activities in a project planPrecedence relationships between activities are represented by circles connected by one or more arrowsThe length of the arrow represents the duration of the activityADM only shows finish-to-start relationships, meaning that each activity is completed before the successor activity startsSometimes a "dummy task" is added, to represent a dependency between tasks, which does not represent any actual activity. Such a dummy task often has a completion time of 0
8 Project Network Diagrams Also called Precedence Diagram Method (PDM)A visual representation technique that depicts the activities involved in a projectCommunicate the flow of project executionIdentify missing activities: When an activity is not identified, it’ll never be done.Identify dependencies: Each activity is dependent on some other activity. When a dependency is not identified, the project will be delayed until such a time that identification occursIdentify critical activities: Certain activities have a greater impact on project schedule than others. This is known as the Critical Path Method (CPM)Create a project schedule: The final goal is to create a practical and robust project schedule.
11 Gantt ChartsGantt charts provide a standard format for displaying project schedule information by listing project activities and their corresponding start and finish dates in a calendar formatSymbols include:Black diamonds: MilestonesThick black bars: Summary tasksLighter horizontal bars: Durations of tasksArrows: Dependencies between tasks
13 Milestones of Gantt Charts Milestones emphasize accomplishments for large projectsCreate milestone by entering tasks that have a zero duration
14 Critical Path Method (CPM) CPM is to predict total project durationA critical path for a project is the series of activities that determines the earliest time by which the project can be completed.The critical path is the longest path through the network diagram and has the least amount of slack or floatSlack or float is the amount of time an activity can be delayed without delaying a succeeding activity or the project finish date
16 Critical Path Method (CPM) Three main techniques for shortening schedules:Shortening the duration of critical activities or tasks by adding more resources or changing their scopeCrashing activities by obtaining the greatest amount of schedule compression for the least incremental costFast tracking activities by doing them in parallel or overlapping them
17 GanttProject ToolGPL-licensed (free software) Java based, project management software that runs under the Windows, Linux and Mac OS XDownload:Handbook: mdp.eng.cam.ac.uk/web/CD/engapps/project/ganttproject.pdfTutorial: https://www.youtube.com/watch?v=5rHCSa5ad34&feature=youtu.be
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