Dolin R H
Kaiser Permanente, La Palma, CA 90623, USA.
J Am Med Inform Assoc. 1995 Sep-Oct;2(5):323-31. doi: 10.1136/jamia.1995.96073835.
To analyze the temporal aspects of symptoms, including their temporal uncertainty, in order to develop a high-level conceptual data model representation of this domain.
A basic tenet of existing temporal models is that events occur not only relative to a particular date or time, but also relative to the time of some other event. The time an event occurs, particularly when the event is a symptom being recalled by a patient or collected by a busy provider, is frequently incomplete or uncertain, and this uncertainty must also be represented in a temporal data model. The object-oriented modeling technique used in this study is becoming popular among U.S. medical informatics standards developers.
A conceptual data model for the temporal aspects of symptom data, including temporal uncertainty, has been developed. The object-oriented modeling approach used enables the temporal objects and attributes defined in this model to be inherited by other medical objects, such as problems.
The temporal comparators presented here have previously been defined, and may serve as the basis for standardizing the terms used to describe how one event temporally relates to another. In an attempt to achieve domain completeness, this study concentrated more on developing a model that is highly expressive than on developing one that is easily queried. This trade-off in representation versus "queryability" will require further analysis and may require modifications to the underlying model.
分析症状的时间特征，包括其时间不确定性，以便开发该领域的高级概念数据模型表示。
现有时间模型的一个基本原则是，事件不仅相对于特定日期或时间发生，而且相对于其他某个事件的时间发生。事件发生的时间，特别是当该事件是患者回忆或忙碌的医疗服务提供者收集的症状时，往往是不完整或不确定的，这种不确定性也必须在时间数据模型中体现出来。本研究中使用的面向对象建模技术在美国医学信息学标准开发者中越来越受欢迎。
已开发出一个用于症状数据时间特征（包括时间不确定性）的概念数据模型。所采用的面向对象建模方法使该模型中定义的时间对象和属性能够被其他医学对象（如问题）继承。
这里提出的时间比较器此前已被定义，可作为标准化用于描述一个事件与另一个事件时间关系的术语的基础。为了实现领域完整性，本研究更多地专注于开发一个具有高表达性的模型，而非一个易于查询的模型。这种在表示与“可查询性”之间的权衡需要进一步分析，可能还需要对基础模型进行修改。
