求翻译：Operational performance deals with the time required to deliver a customer's order. Operational performance involves delivery speed and consistency. Naturally, most customers want fast delivery. However, fast delivery is of limited value if inconsistent from one order to the next. A customer gains little benefit when a supplier promises next-day delivery but, more often than not, delivers late. To achieve smooth operations, firms typically focus on service consistency first and then seek to improve delivery speed. Other aspects of operational performance are also important. A firm's operational performance can be viewed in terms of its flexibili~ to accommodate unusual and unexpected customer requests. Another aspect of operational performance is frequency of malfunction and, when such malfunction occurs, the required recovery time. Few firms can perform perfectly all the time. It is important to estimate the likelihood of something going wrong. Malfunction is concerned with the probability of logistical performance involving failures, such as damaged products, incorrect assortment, or inaccurate documentation. When such malfunctions occur, a firm's logistical competency can be measured in terms of recove07 time. Operational performance is concerned with how a firm handles all aspects of customer requirements, including service failure, on a day in and day out basis.是什么意思？

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