1. Possible user expression requirements information is not clear, this time needs to be based on the user's words and words to understand, the user made assumptions clearly explained, especially the conflict prone parts.
2. The knowledge and terminology of the user is different from that of the technician, and this is the time to understand the process of thinking that users use to express their needs.
3. Sometimes in the interview, some problems will be forgotten, affected by unfamiliar links, so you need to design some forms before the interview.
4. In the interview is always tangled in how to do customer needs, resulting in the specific do not understand clearly, so will avoid discussing some specific solutions.
5. Always repeat to the customer before the similar problem, so in the design of the problem should have a simple and strict standards, according to the actual situation to judge.
The common approach to demand acquisition is to conduct customer interviews and discuss with your practice what problems you will encounter, and how do you solve them?