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DMQ 30262

Figure 3.10 Process Decision Program Chart

3.8 ACTIVITY NETWORK DIAGRAM

The activity network diagram is also known as a PERT (program evaluation and
review technique) diagram or critical path (longest path in time from beginning to end)

diagram and is used in controlling projects.

Figure 3.11 shows an activity network PERT diagram with its nodes and times. The
nodes are circles and the times are given in days. The following steps are used to
develop an activity network diagram:

 Using the inputs from a tree diagram listing tasks to be performed in the
project, list all the tasks.

 Determine task times. The following simple formula is useful:

(to + 4tm + tp)/6

KKTM Kuantan 46 DMQ 30262