Feedback from key customers on their current and future service needs. 各部门对目前和未来服务需求的意见。
The variations in demand present a challenge to the operations manager to effectively use the perishable service capacity. 因为服务具有生产消费同时性的特点,所以服务产品无法储存,服务需求变动会对有效利用易逝的服务供给产生影响。