The purpose behind the reference interview structure is to ensure that the library user's
information need is satisfied. The librarian can use a number of interview techniques to help identify the user's exact need. Poor reference interview skills may lead to misinterpretation of the real question, a lack of real help, and/or an unsatisfied library user. Librarians use many techniques to help identify a user's information need. With body language, repetition, and paraphrasing of what the user says, the interviewer can encourage the user to give more information about what they need. Asking open questions establishes context and helps to identify exactly what is required. A lack of follow-up, checking that the user found what they required, is one of the common mistakes made in the reference interview. ==Query formation==