Interviews are an excellent means to get up close and personal with building users, learning first-hand about their interests, expectations and needs concerning the building. Interviews can take place with different kinds of stakeholders. For the strategic brief, it will be useful to conduct interviews with the key decision makers and the sponsors of the project (the ceo, project manager, and/or head of the facility management department). What are their visions and dreams concerning the project? What do they think should be achieved with it? How ambitious are they? Should it be a normal building or something exceptional?For the functional brief, the scope of the interviews should be broader, involving a wide range of users (depending on the type of building these can be office workers, teachers, medical staff, visitors, patients, et cetera). The purpose of these interviews is to gain a comprehensive understanding of the activities of users, their way of thinking and their practical needs. For the technical brief, it will be useful to conduct interviews with key technical personnel, for example people from the it department, laboratory experts, or people from the facility management department.Briefing interviews can usually be semi-structured, which means that they resemble a normal conversation. To steer the conversation, it will be useful to have a list of topics or questions. After the interview, the same list can be used for categorization of answers. What have the different interviewees said about specific topics? Are their ideas converging or diverging? Is there a coherent image or idea emerging from the interviews, or is additional research needed?A point to consider is that interviewees may use the interview as a means to push through wish lists or highly personal opinions concerning the project. This cannot be entirely avoided, but follow-up questions can help here (e.g. What makes you say that? or Is that a widely held opinion in the organization or a personal one?). Furthermore, it can be useful to rephrase what people say (Do you mean that ) to make things clearer, although the interviewer should be careful not to steer the conversation.Recommendations-Inform the interviewees beforehand about the topics to be discussed and about the use of the outcomes (e.g. anonymized or not).-Consider further involvement of the interviewees in the later stages of the project (e.g. in focus groups or work groups).-Write a short report of each interview. Full transcripts are even better, but this can be very time-consuming (although transcription software can help with this).-Analyse whether interview outcomes are converging or diverging.-Look for telling quotes and anecdotes that can be used as narratives in the brief.-Consider group interviews. These are time efficient and discussions between the interviewees may provide interesting additional insights