Final answer:
For interviews aimed at eliciting requirements, unstructured interviews are generally less effective compared to structured interviews. Structured interviews enable more accurate candidate comparisons and tend to be more predictive of job performance. Preparation and reflection are key to conducting successful interviews.
Step-by-step explanation:
During an interview to elicit requirements, having a very unstructured interview may not be the most effective approach. Structured interviews, with pre-determined questions and a standardized rating system, allow the interviewer to compare candidates more accurately and have been shown to be more predictive of job performance. unstructured interviews can facilitate a more relaxed conversation and potentially reveal different types of information, the lack of structure can also result in a lack of focus and inconsistent data.
To conduct an effective interview, one should prepare by writing a script with both open and closed questions, arranging them to build on each other, and planning for follow-up questions. Lastly, reflection on the interview is essential to evaluate the effectiveness of the approach and the quality of the information gathered.