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Activity networks ­ Example 3
A(2)
1
B(4)
Begin with a start node,
labelled 1.
Activities A and B have no
preceding activities, so can
both begin at the start node.…read more

Slide 3

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Activity networks ­ Example 3
3
A(2)
1
B(4)
2
Activity C depends on both
A and B, but activity D
depends on B only.
We can deal with this by
adding a dummy activity.…read more

Slide 4

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Activity networks ­ Example 3
C(5)
3
A(2)
1
B(4)
2
D(3)
Now add activity C, which
depends on both A and B ...
... and activity D, which
depends on B only.…read more

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Activity networks ­ Example 3
C(5) E(6)
3 4
A(2)
F(3)
1
B(4)
2 5
D(3) G(8)
Activities E and F depend on
C only...
... and activity G depends on
D only.…read more

Slide 6

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Activity networks ­ Example 3
C(5) E(6)
3 4
A(2)
F(3)
1 H(2)
6
B(4)
2 5
D(3) G(8)
Activity H depends on
activities D and F.
To deal with this, we need a
dummy activity from event 5.
Now activity H can be added.…read more

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