Six Sigma Green Belt Certification Practice Exam

A work breakdown structure (WBS) is fundamentally a detailed listing of activities required to complete a project. It breaks down the project into smaller, manageable components, allowing teams to organize their work and clarify project tasks. The WBS serves as a hierarchical framework that outlines all deliverables and subdivides them into actionable parts, which helps in estimating resources, timelines, and costs more effectively. This structure not only enhances clarity among team members regarding their roles and responsibilities but also fosters better communication and tracking throughout the project lifecycle.

The other options do not accurately describe a work breakdown structure. For instance, a measurement of a system to determine project success pertains more to performance metrics or evaluation mechanisms rather than breakdown activities. Similarly, cumulative calculations of yield are related to process performance and quality management, and secondary metrics derived from primary metrics focus on measurement rather than the organization of tasks needed to complete a project. Thus, the correct understanding of WBS highlights its role in task organization and project management, making answer B the appropriate choice.