PRINCE2F PRINCE2 Practices Practice Question
What is the purpose of the Product Breakdown Structure (PBS)?
⚠ Common exam trap
PRINCE2 exams often test the confusion between the PBS (which identifies products and their relationships) and the Product Flow Diagram (which sequences the creation of those products), leading candidates to incorrectly select Option D.
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 the products to be produced and their relationships
The Product Breakdown Structure (PBS) is a hierarchical diagram that identifies all the products (both management and specialist) that the project must deliver, along with their relationships. It decomposes the final output into smaller, manageable components, ensuring nothing is missed. This directly supports the PRINCE2 principle of 'focus on products' by providing a complete product scope before planning activities or assigning resources.
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 assign responsibilities to team members
Why it's wrong here
A Product Breakdown Structure decomposes the product into its component deliverables; responsibility assignment belongs to the organisation structure, not the PBS. A PBS is the correct choice when the project must define what will be produced before planning activities.
- ✗
To define quality criteria for each product
Why it's wrong here
Quality criteria belong in the Product Description, which accompanies each product in the plan; the PBS only decomposes the product into its component parts. Confusing the two is tempting because both documents relate to products, but a PBS that listed criteria would duplicate the Product Description rather than show hierarchy.
- ✓
To identify the products to be produced and their relationships
Why this is correct
The Product Breakdown Structure decomposes the project's products into a hierarchy, showing each product and its parent-child relationships. This satisfies the stem's requirement by identifying what must be produced and how those products relate, forming the basis for subsequent product descriptions and the product flow diagram.
- ✗
To sequence activities in the Project Plan
Why it's wrong here
Sequencing activities is the job of the Project Plan, which derives its schedule from the product flow and dependencies; the PBS only decomposes the final product into its constituent parts. The temptation arises because both sit in the Plans theme, yet a PBS carries no timing or dependency information.
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Same concept, more angles
1 more way this is tested on PRINCE2F
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. In PRINCE2, what is the primary purpose of the Product Breakdown Structure (PBS)?
hard- A.To show the dependencies between products
- ✓ B.To identify all products that must be produced by the project
- C.To define the quality criteria for each product
- D.To show the order in which products will be created
Why B: The Product Breakdown Structure (PBS) is a hierarchical decomposition that identifies all the products the project must produce, breaking the final product into its component products and sub-products. It answers 'what' will be produced, not 'how' or 'in what order'.
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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