During project planning, detailed estimates of cost and duration are typically made at which level of task decomposition?
The work package level
The project phase level
The activity level
The deliverable level
Detailed estimates of cost and duration are typically made at the work package level, which represents the lowest level of task decomposition in a project's hierarchical structure. Work packages are manageable units of work that can be assigned to teams or individuals, facilitating accurate planning, execution, and control. Other options such as the project phase level or deliverable level are higher-level components that are too broad for detailed estimating, while the activity level may refer to specific actions but may not provide the necessary context for comprehensive estimation in predictive, plan-based methodologies.
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