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Educational Management

Notes critical path delays the project. Similarly, to accelerate the project it is necessary to reduce the
total time required for the activities in the critical path.

Project progresses, the actual task completion times will be known and the network
diagram can be updated to include this information. A new critical path may emerge,
and structural changes may be made in the network if project requirements change.

13.10 Advantages of CPM

By Jason Chavis, eHow Contributor

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t =3 mo
t =1 mo D F
t =3 mo t =2 mo
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B C
t =4 mo t =3 mo
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Advantages of the Critical Path Method
There are many advantages to using the critical path method. Over the years, the critical path
method has been developed to provide efficiency and effective management procedures. It uses a
mathematical process to help determine a time line for a project, what resources will be needed and
what order the activities need to occur first. This system has streamlined all aspects of a projects
process and how management is undertaken.

13.11 Disadvantages of CPM

CPM was developed for complex but fairly routine projects with minimal uncertainty in the project
completion times. For less routine projects there is more uncertainty in the completion times, and
this uncertainty limits the usefulness of the deterministic CPM model. An alternative to CPM is the
PERT project planning model, which allows a range of durations to be specified for each activity.

What is slack time ?

Self Assessment

2. Fill in the blanks :
(i) Critical path method uses a ______ based algorithm in effective project management.
(ii) CPM was first developed by the U.S. Navy during the ______.

(iii) A list of all activities to be performed is knows as ______.
(iv) CPM is a ______ model that does not take into account variation in the Completion time.

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