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Project Management for IT-Related Projects by David I. Shepherd, Norman Smith, Brian West, Roger Ireland, Bob Hughes

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2.4 Activity planning

Whether or not a product flow diagram has been drawn up or whether the planner has simply drawn up a list of activities, the next step is to draw up an activity network. This shows the activities needed and the order in which they are to be carried out.

2.4.1 Activity network diagram

There are two sets of conventions for drawing up activity networks: ‘activity on node’ and ‘activity on arrow’. Figure 2.3 shows an example of an activity on arrow diagram.

Fig. 2.3 Activity on arrow network

As the name implies, the arrows in an ‘activity on arrow’ diagram represent activities, while the circles that link the arrows (that ...

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