1. Eleanor Roosevelt High School
Chin-Sung Lin
Project Management

2. Project Time Management
Activity Sequencing and Network Diagrams
Activity on Arrow (AOA) Network Diagrams
Precedence Diagram Method (PDM)
Gantt Charts
Critical Path Method (CPM)
GanttProject Tool

3. Activity Sequencing and Network Diagrams
Review activities and determine dependencies of project activities or tasks
Determine dependencies in order to use critical path analysis
Network diagrams are used for showing activity sequencing
A 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 arrows
ADM is used for scheduling activities in a project plan
Precedence relationships between activities are represented by circles connected by one or more arrows
The length of the arrow represents the duration of the activity
ADM only shows finish-to-start relationships, meaning that each activity is completed before the successor activity starts
Sometimes 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

6. Activity on Arrow (AOA) Network Diagrams

7. Activity on Arrow (AOA) Network Diagrams

8. Project Network Diagrams
Also called Precedence Diagram Method (PDM)
A visual representation technique that depicts the activities involved in a project
Communicate the flow of project execution
Identify 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 occurs
Identify 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.

9. Project Network Diagrams
Task Dependency types

10. Project Network Diagrams

11. Gantt Charts
Gantt charts provide a standard format for displaying project schedule information by listing project activities and their corresponding start and finish dates in a calendar format
Symbols include:
Black diamonds: Milestones
Thick black bars: Summary tasks
Lighter horizontal bars: Durations of tasks
Arrows: Dependencies between tasks

12. Gantt Charts
Microsoft Project

13. Milestones of Gantt Charts
Milestones emphasize accomplishments for large projects
Create milestone by entering tasks that have a zero duration

14. Critical Path Method (CPM)
CPM is to predict total project duration
A 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 float
Slack or float is the amount of time an activity can be delayed without delaying a succeeding activity or the project finish date

15. Critical Path Method (CPM)

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 scope
Crashing activities by obtaining the greatest amount of schedule compression for the least incremental cost
Fast tracking activities by doing them in parallel or overlapping them

17. GanttProject Tool
GPL-licensed (free software) Java based, project management software that runs under the Windows, Linux and Mac OS X
Download:
Handbook: mdp.eng.cam.ac.uk/web/CD/engapps/project/ganttproject.pdf
Tutorial:

18. GanttProject Tool

19. Action Items Create your network diagram
Create a Gantt chart for your project
Due day: 10/03/2014, Friday