According to the PMBOK Guide, 7th edition, a joint requirements session is a technique used to elicit and prioritize requirements from multiple stakeholders in a collaborative and interactive way. It can also be called a workshop, a focus group, or a brainstorming session. To ensure that the session is effective and efficient, the project manager should organize a formal session led by a skilled facilitator who can guide the discussion, manage conflicts, and ensure participation from all attendees. The facilitator should also establish and communicate the rules for how the participants will interact with one another, such as respecting different opinions, using constructive feedback, and following an agenda. This will help to avoid chaos and confusion, and to achieve the desired outcomes of the session. References:

PMBOK Guide, 7th edition, page 149, section 5.2.3.1, Joint Requirements Session

PMBOK Guide, 7th edition, page 150, section 5.2.3.2, Facilitation