Mystery shopping is a tool used externally by market research companies, watchdog organizations, or internally by companies themselves to measure quality of service, or compliance¹ with regulation, or to gather specific information about products and services. 

“神秘购物”是市场调查公司和监管机构的外部调查工具，也可以由公司作为内部调查使用，以衡量服务质量、是否遵守规则，或作收集产品和服务的特定信息之用。

 

The mystery consumer's specific identity and purpose is generally not known by the establishment being evaluated. 

被评估的机构一般不知晓神秘顾客的特定身份和目的。