Search the main information of the case and make clear the needs of the case owner. From the perspective of advantage, the emergence of "problem" should not only focus on the case owner himself, but also the environment where the case owner is located, and start to collect data from personal situation, working environment, family and other aspects; from the perspective of advantage, look at the problem of the case owner, help the case owner to find their own advantages, connect the response resources, and solve the problem of the case owner