In this paper, we describe how to analyze and design the accelerated life test plans to improve the quality and reliability of the item. We focus on estimating the costs of maintenance service policy because it plays an important role in assisting any manufacturing organization for sale and available equipment and maintenance cost-effective. The step-stress partially accelerated life test is assumed when the lifetime of test units follows Generalized Inverted Exponential distribution under the progressive censoring scheme. The maximum likelihood estimates,Fisher Information matrix, and the asymptotic variance and covariance matrix are obtained. The confidence intervals of the estimators are also obtained. Furthermore, a simulation study is conducted to check the accuracy of the results.

在本文中，我们描述了如何分析和设计加速寿命测试计划以提高项目的质量和可靠性。我们专注于估算维护服务政策的成本，因为它在协助任何制造组织进行销售和可用设备和维护成本效益方面发挥着重要作用。在渐进删失方案下，当测试单元的寿命遵循广义倒指数分布时，假定进行阶跃应力部分加速寿命测试。得到最大似然估计、Fisher信息矩阵、渐近方差和协方差矩阵。还获得了估计量的置信区间。此外，还进行了模拟研究以检查结果的准确性。