根据总体满意度衡量客户对产品和服务有效性的反馈。要分析的数据是通过调查、客户响应和基于交付的产品/服务的反馈收集的。 Measuring customer feedback in regard to product and services effectiveness based on overall satisfaction. The data to be analyzed is collected through surveys, customer responses, and feedbacks based on the delivered products/services.