Metzger J B, Stevens J M, Morphy M S, Silva J S
Arthur D. Little, Inc., Cambridge, Massachusetts 02140.
J Med Syst. 1988 Aug;12(4):231-48. doi: 10.1007/BF00999502.
Appropriate system sizing is essential to ensuring a reasonable computer response time for end users. A model is discussed that describes the type and number of interactions between user terminals and printers and the central processor for a comprehensive, integrated medical information system. The system modeled includes support to inpatient and outpatient order entry and results reporting for clinical services; registration; admission, disposition, and transfer; patient appointing; pharmacy, clinical laboratory, and radiology; medical record management; and electronic messages. Originally developed for use in benchmark testing of comprehensive systems designed for military hospitals and clinics, the model has been generalized to be applicable to other systems and settings. Results are presented for a routine busy day in a 200-bed teaching hospital providing extensive outpatient services, and a large free-standing clinic. The model results can be applied to several facets of system planning, including sizing of the central processor and communications network, determining the optimal number of storage devices and user devices, and fine tuning the user interface.
合适的系统规模对于确保终端用户获得合理的计算机响应时间至关重要。本文讨论了一个模型，该模型描述了综合集成医疗信息系统中用户终端、打印机与中央处理器之间交互的类型和数量。所建模的系统包括对住院和门诊医嘱录入以及临床服务结果报告的支持；挂号；入院、处置和转院；患者预约；药房、临床实验室和放射科；病历管理；以及电子消息。该模型最初是为军事医院和诊所设计的综合系统的基准测试而开发的，现已推广到适用于其他系统和环境。文中给出了一家拥有200张床位且提供广泛门诊服务的教学医院以及一家大型独立诊所日常繁忙一天的结果。该模型结果可应用于系统规划的多个方面，包括中央处理器和通信网络的规模确定、存储设备和用户设备最佳数量的确定以及用户界面的微调。
