Explanation
An unstructured interview is a type of elicitation that allows each stakeholder to freely discuss their role in a particular process. An unstructured interview is a flexible and informal conversation that does not follow a predefined set of questions or topics. An unstructured interview allows the interviewer to explore the stakeholder's perspectives, opinions, needs, and expectations in depth. An unstructured interview also allows the interviewer to adapt to the stakeholder's responses and follow new lines of inquiry. An unstructured interview is useful for eliciting tacit knowledge, complex information, and emotional aspects of the stakeholder's role. References: IIBA BABOK Guide v3, section 4.2.5, page 115; CBAP / CCBA Certified Business Analysis Study Guide, chapter 4, page 177; CBAP Sample Questions, question 238.