An availability model for the evaluation of equipment alternatives
提出了一个基于可用性的模型来评估设备替代方案，通过成本与可用性曲线选择最优方案，并应用于医院实验室血清样本分析设备的评估。
Abstract An availability based model for the evaluation of alternatives in equipment replacement analysis is presented. The expected annual cost of an equipment alternative is developed as a function of availability. The least cost alternative for the desired availability is identified from cost vs. availability curves of the alternatives. A simulation approach is used to determine the availability of existing equipment. The methodology is applied to the evaluation of alternate equipment for the analysis of serum samples in a hospital laboratory.