检查通过处理和解决投诉获得的信息，以获得发展/改进机会。根据速度、准确性、礼貌、价格、产品选择、可用性、时间、位置等对客户投诉数据进行分类。确定投诉模式以诊断需要改进的领域。 Examining the information obtained through handling and resolving complaints for development/improvement opportunities. Categorize the customer complaints data on the basis of speed, accuracy, courtesy, price, product choice, availability, hours, location, etc. Determine complaint patterns in order to diagnose areas needing enhancement.