| Summary: | 碩士 === 國立中正大學 === 企業管理研究所 === 90 === Abstract
Since hospitals in Taiwan allow appointment patients and walk-in patients simultaneously, the uncertainty of walk-in patients’ arrival times makes the resources wasted and the medical cost reduced to a limited extent. Therefore, this study would like to design a better appointment system with the improvement of some past researches.
First of all, this study discovered that many researchers used “time” as the objective function in the literature. However, through the experiment, it shows that the relationship of the expected doctors’ idle time and the expected patient’s waiting time is trade-off. It seems impossible to reduce these two times at the same time. Thus, this study regards the total cost, which is defined as the sum of these two times multiplying by their corresponding unit cost, as the objective function. Base on simulation, the improved appointment systems with the appropriate parameters are found; in addition we also build the 95% confidence interval with the “batch means” method to raise the credibility of the experiment. What’s more, we make the comparison analysis with four simulation experiments.
In the research result, the study compares the present states of the domestic and overseas hospitals at first. We discover that hospitals overseas only accept appointment patients, so their systems are better. It can be regarded as an ideal condition for domestic hospitals; moreover, the study proposes a more suitable appointment scheduling system according to some different combinations of parameters. As for domestic hospitals, we propose two improved rules: Improved rule I is to adjust interarrival times; and Improved rule II is to delay the first patient’s arrival time. Finally, this study draws up a few simple conclusion for application. For example, if the number of patients is less than 60, the number of the walk-in patients is more than that of the appointment patients and the unit time cost is less than 40, this study suggests that the hospital adopt “Improved experiment Simulation II”. But if everything remains the same except the unit time cost is more than 40, the hospital should take “Improved experiment Simulation I”.
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