The current music survey has reached a cooperation with to realize the combination of consumer behavior analysis + research and Special Database visit data. The sample collection is mainly based on consumers' browsing preferences, online shopping crowd behavior characteristics, and search preferences to locate target users. Its user attribute labels are roughly: young hot mom, loyal fruit powder or lipstick harvester, Dyson true love powder and other types. The Special Database advantage of the Le survey is that the sample for e-commerce online shopping consumers is quite abundant, but the sample for other fields is relatively small. Three generations of evolution of online questionnaire sample database, who can represent the future? The Le survey also Special Database introduced more sources by recruiting resources to ensure the authenticity and breadth of the sample. Its official website data shows that: NetEase and other mainstream portal cooperation accounts for 10% of the total, Baidu search engine accounts for 10%, various application store channels account for 10%, and Alipay's sites, China Telecom channels account for 30% of the total. The total number of samples it Special Database executes every year reaches 3 million+. In addition, the second-generation questionnaire platform has begun to introduce a reward mechanism: for example. The joy survey is a coexistence of material and non-material incentives. Once launched a survey coupon activity for students Special Database in 2014, providing free sample services for students. However, only 2 points were awarded to those who filled out the questionnaire, which also caused a large number of random fillings, exposing the shortcomings of the sample library in member selection and quality control at that time. Motivated by the rewards for filling out the questionnaire at that time, users who took the initiative to participate in the questionnaire Special Database often consciously became.actors" and became the people needed by the questionnaire. Due to the insufficient screening mechanism of the second-generation questionnaire platform.