CONVENTIONS FOLLOWED IN DRAWING NETWORK

The conventions followed in drawing a network are as follows:

  1. Draw the arrow directing from left to right, that is, time and progress of the project flows from left to right.
  2. As far as possible avoid drawing arrows that cross each other. Where ever crossing of arrows is unavoidable, bridging may be done.
  3. An activity is always bounded by two events, called the start event and the end event. No event should hang loosely on the network.
  4. Each node should be numbered without ambiguity. The numbers are assigned to events in such a way that the number assigned to the ending event of an activity is greater than the number assigned to the beginning event of that activity.

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