network & gantt chart project management (lecture)
TRANSCRIPT
![Page 1: Network & Gantt chart Project management (lecture)](https://reader035.vdocuments.us/reader035/viewer/2022081419/56649da15503460f94a8e1a0/html5/thumbnails/1.jpg)
Network & Gantt chart
Project management(lecture)
![Page 2: Network & Gantt chart Project management (lecture)](https://reader035.vdocuments.us/reader035/viewer/2022081419/56649da15503460f94a8e1a0/html5/thumbnails/2.jpg)
Why to 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• Visualise floats and activity times. Effective
explanatory and teaching instrument.• Resource allocation can be performed on it.
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Two ways af translating networks into bar chart
• Calculating activity times and loacting these on the bar chart
• Drawing activities directily to a time-scale, using the node numbers ensuring correct relationships (time-scaled network)– AoA type– AoN type
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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• Activitiy bars will fall from top-left to bottom-
right. Dependent activities are always lower in the chart.
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The time-scaled network (AoA)
41
3
42
0 10 15 20 25 305
a
b
c
dburst merge
free float
10
0
27
13a7
423
23
c10
315
15
b15
d8
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Dummy activities on a time-scaled AoA network
a15
10
0
215
20
4 2525
3 2020
b
20c5
dummy
a
b c
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Time-scaled AoN network (example 1)
• Re-draw the first AoA project as an AoN network:
START
0 00
0 00
0
FINISH
20 200
20 200
0
b
0 150
0 1515
0
a
0 76
6 137
0
d
15 200
15 205
0
c
7 170
13 2310
0
• On AoN networks start and finish activities should be created if thereis no single starting/ending activities.
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Translate standard AoN to a time-scaled network
0 10 15 20 25 305
FINISH
7 17 23
START
a c
b d
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Re-draw the second AoA:
Time-scaled AoN network (example 2)
START
0 00
0 00
0
FINISH
25 250
25 250
0
b
0 200
0 2020
0
a
0 155
5 2015
5
c
20 250
20 255
0
Translate it to a time-scaled network.
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Solution
0 10 15 20 25 305
START
a
cb
FINISH
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Time-scaled AoN network(individual exercise)
START
0 00
0 00
0
e
10 130
10 133
0
d
2 73
5 105
3
c
2 100
2 108
0
b
0 55
5 105
5
a
0 20
0 22
0
FINISH
13 130
13 130
0
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Solution0 10 15 20 25 305
START FINISH
d
b
a c
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Reading
• Lockyer – Gordon (2005): Chapter 16
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Thank you for the attention