The correct answer is C – Non-functional requirements should have been added to the definition of done. Non-functional requirements such as performance, security, or usability criteria apply across stories and should be included in the Definition of Done (DoD) to ensure consistent delivery of quality attributes.
From the PMI Agile Practice Guide:
“The definition of done should incorporate quality standards, including non-functional requirements. This ensures these standards are consistently applied across all deliverables.”
(PMI Agile Practice Guide, Section 5.2 – Definition of Done)
Mike Griffiths further explains:
“Non-functional requirements are often best represented in the DoD so they’re applied universally. Without this, teams may deliver functionality that lacks necessary quality characteristics.”
(Mike Griffiths, PMI-ACP Exam Prep, Chapter 3 – Value-Driven Delivery)
Incorrect options:
A would help but isn’t sufficient for global system qualities.
B is suitable for specific stories but doesn’t ensure consistency across the product.
D is helpful but doesn’t guarantee alignment with quality standards.
Answer: C
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