Expert interviews give design teams rapid access to deep domain knowledge they could not acquire through general user research alone. Whether you are designing a medical device, a legal workflow tool, or a financial planning app, speaking with domain experts early in a project compresses the learning curve dramatically. Experts can describe system constraints, regulatory requirements, professional norms, and failure modes that typical users would never think to mention.
What It Is
An expert interview is a structured or semi-structured conversation with a person who has deep knowledge of the subject matter relevant to your design challenge. Unlike a user interview, the expert is not necessarily a direct user of the product you are designing. They might be a clinician, a policy specialist, a technology architect, or a seasoned industry practitioner. The goal is to extract their hard-won knowledge and map it onto the design problem to generate better-informed questions for subsequent user research.
How to Run It
Identify experts through professional networks, academic institutions, industry conferences, and internal contacts. Prepare a focused discussion guide that makes efficient use of their time. Prioritise questions about domain complexity, common failure modes, regulatory or ethical constraints, and the most important things that outsiders typically misunderstand. Keep sessions to forty-five to sixty minutes. Send questions in advance if the expert prefers preparation time. Take detailed notes and follow up with clarifying questions by email if needed. Triangulate insights across multiple experts rather than relying on a single perspective.
When to Use It
Expert interviews are most valuable at the very start of a project, before primary user research, to ensure the team is asking the right questions in the right context. They are also useful when a design challenge requires technical knowledge, for example understanding drug interaction constraints when designing a pharmacy tool, or understanding building codes when designing construction management software. Use them again when user research surfaces unexplained patterns that require expert interpretation.
Tips for Success
Be transparent about your background and the project's purpose. Experts give better answers when they understand what level of detail is useful. Prepare enough to ask intelligent follow-up questions, but do not pretend to know more than you do. Ask experts to describe worst-case scenarios and common misconceptions: these often yield the most design-relevant insights. Where possible, recruit experts with different professional backgrounds to surface complementary perspectives rather than a single consensus view.
