PMI Scheduling Professional Certification (PMI-SP) Practice Exam

In a WBS, which of the following best describes the hierarchy of tasks?

1. Tasks are aggregated into summaries based on project objectives

2. All tasks must be of equal importance and resource allocation

3. Tasks can be overlapping and interchangeable without restrictions

4. The structure always lists tasks in chronological order

The correct answer is: Tasks are aggregated into summaries based on project objectives

The hierarchy of tasks in a Work Breakdown Structure (WBS) is fundamental to project management. The correct option highlights that tasks are organized into a structured framework whereby they are aggregated into summaries based on project objectives. This means that the WBS organizes tasks into hierarchies that reflect the project’s deliverables and objectives, allowing for a clear breakdown of the project into manageable components. In this structure, higher-level tasks represent larger objectives or phases of the project, while lower-level tasks represent the specific work needed to achieve those objectives. This hierarchical organization aids in tracking progress, assigning responsibilities, and managing resources effectively throughout the project lifecycle. Understanding the purpose of the WBS as a tool for organizing tasks based on project objectives is crucial to effective project planning and execution. It allows project managers to visualize the entire scope of the project, facilitating better communication and alignment among stakeholders.