1. Project management (seminar)
Network & Gantt chart
Project management
(seminar)

2. Why translate a network to a Gantt chart?
Gantt chart is more readily to understood by ‘unskilled’ people. It is especially useful when presenting to the top management.
Progress can be easily displayed on it.
To visualise floats and activity times. Effective explanatory and teaching instrument.
Resource allocation can be performed on it.

3. Two ways of translating networks into bar chart
Calculating activity times and locating these on the bar chart.
Drawing activities directly to a time-scale, using the node numbers ensuring correct relationships (time-scaled network)
AoA type
AoN type

4. The time-scaled network (AoA)
Mark activities by nodes (events)
Any dummy must be drawn in as a vertical line with its head and tail node-labels
Activity bars will fall from top-left to bottom-right. Dependent activities are always lower in the chart.

5. The time-scaled network (AoA)1 2 7 13 a 4 23 c 10 3 15 b d 8 4 1 3 2 10 15 20 25 30 5 a b c d
burst
merge
free float

6. Dummy activities on a time-scaled AoA network15 1 2 20 4 25 3 b c 5 4 1 3 2 10 15 20 25 30 5
dummy a b c

7. Time-scaled AoN network (example 1)
Re-draw the first AoA project as an AoN network: a 7 6 13 c 7 17 13 23 10
START
FINISH 20 b 15 d 15 20 5
On AoN networks start and finish activities should be created if there are no single starting/ending activities.

8. Translate standard AoN to a time-scaled network5 7 10 15 17 20 23 25 30
START
FINISH a c b d

9. Time-scaled AoN network (example 2)
Re-draw the second AoA:
START
FINISH 25 b 20 a 15 5 c
Translate it to a time-scaled network.

10. Solution 5 10 15 20 25 30
START
FINISH a b c

11. Time-scaled AoN network (individual exercise)2 10 8 a 2
START e 10 13 3
FINISH 13 d 2 7 3 5 10 b 5 10

12. Solution 5 10 13 15 20 25 30
START
FINISH a c d b e

13. Reading
Lockyer – Gordon (2005): Chapter 16

14. Thank you for the attention