What is the difference between an activity-on-arrow aoa


a. What is the difference between an activity-on-arrow (AOA) network and an activity-on-node (AON) network? Which is primarily used in this chapter? What is the significance of the critical path?

b. What would a project manager have to do to crash an activity? Describe how expected activity times and variances can be computed in a PERT network? Define earliest start, earliest finish, latest finish, and latest start times.

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