Page 165 - DCAP601_SIMULATION_AND_MODELING

Unit 9: Simulation of a PERT Network (I)

Notes

A completed network diagram created using Microsoft Visio. Note the critical path is in red.

Advantages of PERT

1. PERT chart explicitly defines and makes noticeable dependencies (precedence relationships)
between the WBS elements
2. PERT facilitates identification of the critical path and makes this visible
3. PERT facilitates identification of early start, late start, and slack for each activity,

4. PERT offers for potentially reduced project duration due to better understanding of
dependencies leading to improved overlapping of activities and tasks where feasible.
5. The large amount of project data can be prepared & presented in diagram for use in
decision making.

Did u know? The full form of AOA and AON
Activity on Arrow and Activity on Node

Disadvantages of PERT

1. There can be potentially hundreds or thousands of activities and individual dependency
relationships
2. The network charts tend to be large and clumsy requiring several pages to print and
requiring special size paper

3. The lack of a timeframe on most PERT/CPM charts makes it harder to show status although
colours can help (e.g., specific colour for completed nodes)

LOVELY PROFESSIONAL UNIVERSITY 159