HKSM
WBS Dictionary
A structured reference that, for each WBS element, records its deliverables, the work to be performed, and related schedule details.
Key Points
- Expands the WBS by adding descriptive details for each component or work package.
- Typically includes scope description, deliverables, activities, acceptance criteria, owner, milestones, estimates, and schedule info.
- Reduces ambiguity and supports planning, estimating, risk analysis, and control.
- Each entry maps to a unique WBS code and can be tailored to the needed level of detail.
Example
On a CRM implementation project, WBS element 3.2 "Data Migration" has a dictionary entry listing the deliverable (customer data migrated to the new system), key activities (extract, transform, load; data validation), acceptance criteria (99.5% accuracy; no critical data loss), responsible owner (Data Lead), dependencies (environment ready, source data freeze), and a schedule window (weeks 8-10).
PMP Example Question
Which document should the project manager review to find acceptance criteria and schedule details for a specific work package?
- WBS Dictionary
- Project schedule network diagram
- Requirements traceability matrix
- Issue log
Correct Answer: A — WBS Dictionary
Explanation: The WBS dictionary provides detailed information for each WBS component, including deliverables, activities, and schedule-related details.
