PRINCE2F PRINCE2 Practices Practice Question
In the product-based planning approach, what is the purpose of the Product Breakdown Structure (PBS)?
⚠ Common exam trap
Test-takers frequently confuse the PBS with the Product Flow Diagram or Product Description — candidates often pick the option about ordering or quality criteria because they conflate the three product-based planning outputs.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
To identify all the products needed for the project
The Product Breakdown Structure (PBS) in PRINCE2's product-based planning technique is used to identify and decompose all the products (deliverables) required for the project. It provides a hierarchical view of the products, breaking them down from major deliverables into smaller components. The PBS answers 'what' needs to be produced, not 'how' or 'in what order' — those are addressed by the Product Flow Diagram and Product Descriptions.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
To define the quality criteria for each product
Why it's wrong here
Quality criteria belong in the Product Description, not the PBS. The PBS decomposes the project's products into a hierarchy, showing what must be produced and their relationships. It is tempting because both artefacts concern products, but quality criteria are documented separately once each product is identified.
- ✗
To show the order in which products will be created
Why it's wrong here
The Product Breakdown Structure (PBS) defines the hierarchy of all products required by the project, but it does not sequence their creation; that temporal ordering is the purpose of the Product Flow Diagram (PFD). This option is tempting because a breakdown structure often implies a logical sequence to practitioners, yet the PBS only decomposes scope, not the chronological steps of product delivery.
- ✗
To provide the cost estimate for each product
Why it's wrong here
Cost estimates are captured in the plan's cost budget, not the PBS. The PBS is a hierarchical decomposition showing the products the project must deliver and their component relationships. It is tempting because the PBS feeds estimating, but it identifies products, not their financial values.
- ✓
To identify all the products needed for the project
Why this is correct
The Product Breakdown Structure hierarchically decomposes and identifies all products required for the project, satisfying the stem's product-based planning purpose. It shows what products are needed, not their sequence or dependencies, which belong to other techniques.
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