Which of the following is NOT a recommended technique for Product Backlog refinement?

A. Conducting regular Backlog refinement meetings
B. Creating detailed designs for all items in the Product Backlog
C. Collaboratively discussing and clarifying Product Backlog items
D. Estimating the effort required for Product Backlog items.

Correct Answer: B

While Product Backlog refinement involves adding detail, estimates, and order to Product Backlog items, creating detailed designs for all items is not recommended. Detailed designs are usually developed during Sprint Planning or during the Sprint, not as part of refinement. The goal of refinement is to make the Product Backlog items clear, transparent, and ready for the next Sprint Planning