Applications of PERT: PERT is best suited to which of the following categories of projects?
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AMarketing and advertising programmes with uncertain task times
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BInstallation of machinery involving coordination under uncertainty
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CResearch and development projects with probabilistic durations
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DAll of these
Answer
Correct Answer: All of these
Explanation
Introduction / Context:PERT excels in environments with uncertain task durations and complex interdependencies. It supports probabilistic scheduling and risk-informed decisions across diverse projects.
Given Data / Assumptions:
- Activities have variable durations.
- Network precedence is known or can be estimated.
- Leadership requires likely completion times and risk estimates.
Concept / Approach:By using three-time estimates for each activity, PERT calculates expected times and variances, then assesses the critical path and completion probabilities. This fits R&D, campaigns, and installations where uncertainty is high.
Step-by-Step Solution:
Model the project network (nodes and activities).For each activity: collect to, tm, tp → compute te and variance.Identify the critical path and evaluate completion risk.Verification / Alternative check:Examples from R&D and marketing launches often use PERT to handle uncertainty and communicate schedule confidence.
Why Other Options Are Wrong:Each single domain is valid; the inclusive answer acknowledges PERT’s cross-domain suitability under uncertainty.
Common Pitfalls:Forgetting to update estimates as information improves; misidentifying dependencies.
Final Answer:
All of these