Gantt Chart & Network
Diagram
DUM 11
Gantt Chart
Gantt chart is a striped diagram named after H.L.Gantt, industrial
engineer who pioneered using this diagram during WW1
Gantt chart is used in project management for graphic representation
of planning sequence of activities over time
Original Gantt chart does not reflect relationships between activities
but modern PM software tools usually implement them
Gantt Chart
Gantt Chart with multiple levels, WBS, Milestones and
dependencies between activities
Network Diagram
1) AoA - Activity on Arrow - nods represent
milestones between project phases,
transition between them is illustrated by
arrow. AoA variant is less frequently
used.
1) AoN - Activity on Nod - Here are
milestones represented by the transitions
between nods, meanwhile individual
activities are represented as nods.
Transitions has zero lenght of duration.
Activity relations
• Finish-to-Start (FS)
- B can’t start until A ends.
- A: build a fence; B: paint the fence.
• Start-to-Start (SS)
- B cant start until A starts.
- A: grass mowing; B: grass raking.
• Finish-to-Finish (FF)
- B can’t end until A ends.
- A: add vinegar; B: blend mayonnaise.
• Start-to-Finish (SF)
- B can’t end until A starts.
- Rarely used.