Wednesday 16 January 2019

Rules for Network Construction

Rules for Network Construction
1. The network should have a unique starting node (tail event) and unique
completion node (head event).
2. No activity should be represented by more than one arrow (→) in the
network.
3. No two activities should have the same starting node and same ending
node.
4. Dummy activity is an imaginary activity indicating precedena relationship
only. duration of dummy activity is zero.
5. The length of arrow bear no relationship to activity time.
6. The arrow in a network identifies the logical condition of dependence.
7. The direction of arrow indicates the direction of work flow.
8. All networks are constructed logically or based on the principal of
dependency.
9. No event can be reached in a project before the completion of
precedence activity.
10. Every activity in the network should be completed to reach the
objective.
11. No set of activities should form a circular loop.

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