This study proposes a model to optimize postsale services consisting of four factors: (a) the basic warranty length, (b) the extended warranty length, (c) the preventive maintenance level, and (d) the preventive maintenance interval. Furthermore, consumer demand for the product and extended warranty are considered as functions of the length of the basic warranty and extended warranty periods, respectively. Because buyer dissatisfaction with a product can lead to the loss of potential buyers and the switch of current customers to the competitors, both manufacturer and buyer satisfaction are considered in the model. Three comparative studies are done for showing the effectiveness of the model. The first one compares the results of simultaneous optimization from the two perspectives of manufacture and customer with the single‐objective optimization results from each of the mentioned viewpoints. The second comparison studies the provision of extended warranty contract in the proposed model, and the third comparison investigates the effect of preventive maintenance actions on the results of the model.

中文翻译：

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兼顾制造商和购买者的满意度，根据基于保修期限的需求优化维护策略

这项研究提出了一个优化售后服务的模型，该模型包括四个因素：（a）基本保修期限；（b）延长保修期限；（c）预防性维护水平；以及（d）预防性维护间隔。此外，消费者对产品的需求和延长的保修期分别视为基本保修期和延长保修期的函数。由于购买者对产品的不满意会导致潜在购买者的流失以及当前顾客转向竞争对手，因此模型中考虑了制造商和购买者的满意度。完成了三项比较研究，以显示该模型的有效性。第一个将制造商和客户这两个角度的同时优化结果与上述每个观点的单目标优化结果进行了比较。第二个比较研究了建议模型中延保合同的条款，第三个比较研究了预防性维护措施对模型结果的影响。