A Study Of Medical Information Processing And Implementation Based On Three-layer Architecture

With the rapid development of information technology, more and more powerful information products appear around us. While the fast of information development, cannot leave the development of software reuse technology. In the near future, information technology will cover all areas, medical information play a positive role to ease the doctor-patient dispute. The root reason of medical dispute occurred is that different people get unequal information, patient suspects the information that doctor has offered. The development of medical information promote medical cause even the whole health care of society, however, the large of medical information system for the whole system upgrade is a serious test. If the medical information system developed in the form of component, the problem will avoid. Developing the unchangeable basic function of components can use the components which have accomplished by other developers, shortening period of project. And when a function module of the medical information needs to be upgraded, only update this part of the independent components, and can ensure that does not affect the other function of medical information platform.The main content of this article is about medical information component design. The design is based on asp.net in Visual Stadio 2010 developing platform, and use SQL Server 2008 to manage the relevant data. In the process of architecture analysis of medical information, have used the three layer architecture model. Through the user requirement analysis to extract the key requirements, and realize the domain modeling, provide the class diagram, state diagram, etc. In the conceptual analysis phase, analysis robustness and give the robust diagram. Explicit the main function modules of medical information components, in this article, the main modules include hospital records, nursing records, progress note, medical orders, discharge module and user feedback module. In the hospital records module, includes nursing admission assessment record, hospital records query part and hospital records add part. In the nursing records module, includes three measuring single, nursing records query part and nursing records add part. In the progress note module, includes query the first progress note part, add the first progress note part, query daily progress note part and add daily progress note part. In the medical orders module, includes long-term orders and short-term orders. Most of information are required to print, WebBrowser component is used to realize this function as well and can reduce the burden on the server. In the medical orders module, through ajax technique to realize real-time message. In the user feedback module, the classification of text has realized, using naive Bayesian classification to design this classifier, this method applies the basic Bayesian theory, and the maximum a posteriori hypothesis is a precondition for the naive Bayesian algorithm. By means of calculating probability to determine the maximum probability category, which is the most likely category that the text belongs to. The meaning of designing user feedback module is that users can use this module to respond to the developers for the advice and insufficient of medical information applications, by extracting key words of the text, sent the text to the specified type folder of email, designers can get the functional requirements and non-functional requirements, this module can provide a reference for designers to develop and upgrade medical components. In order to make the medical information component has a better interactive experience, Javascript technology is used in the design process. In this design, I have used CSS in the page layout. Because of the simple of CSS, it has become the most widely used method by web developers in the page layout. In this design, encapsulating the medical information related functional methods as a component, and design component interface to realize the behavior calls between component and other components, meanwhile, it is convenient for development software reuse technology.