What is the fundamental distinction between PERT and CPM_____________?
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Answer: D. guessed times are used in PERT and evaluated times in CPM
Explanation
PERT traditionally incorporates probabilistic three-time estimates to account for uncertainties inherent in complex research and development tasks. Conversely, CPM typically relies on deterministic, evaluated time values derived from established historical performance data. This fundamental difference in time estimation methodology distinguishes PERT network analysis from standard Critical Path Method calculations. Both PERT and CPM are essential network analysis techniques used by project managers to schedule and control complex engineering endeavors. PERT was originally designed for research projects where task durations are highly uncertain and difficult to predict accurately. CPM was developed for construction projects where activity durations are relatively well understood based on prior experience.
Option A incorrectly suggests PERT deals exclusively with events while CPM deals with activities, whereas both manage activity networks. Option B is false because critical paths are determined in both PERT and CPM network scheduling techniques. Option C is incorrect because cost accounting can be integrated into both PERT and CPM project management frameworks.
- Subject
- Engineering
- Category
- Mechanical Engineering
- Topic
- —
- Difficulty
- medium
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