Robinson Judas, de Lusignan Simon, Kostkova Patty, Madge Bruce, Marsh A, Biniaris C
Division of Community Health Sciences, St George's - University of London, London, UK.
Inform Prim Care. 2006;14(4):247-52. doi: 10.14236/jhi.v14i4.636.
Rich Site Summary (RSS) feeds are a method for disseminating and syndicating the contents of a website using extensible mark-up language (XML). The Primary Care Electronic Library (PCEL) distributes recent additions to the site in the form of an RSS feed. When new resources are added to PCEL, they are manually assigned medical subject headings (MeSH terms), which are then automatically mapped to SNOMED-CT terms using the Unified Medical Language System (UMLS) Metathesaurus. The library is thus searchable using MeSH or SNOMED-CT. Our syndicate partner wished to have remote access to PCEL coronary heart disease (CHD) information resources based on SNOMED-CT search terms.
To pilot the supply of relevant information resources in response to clinically coded requests, using RSS syndication for transmission between web servers.
Our syndicate partner provided a list of CHD SNOMED-CT terms to its end-users, a list which was coded according to UMLS specifications. When the end-user requested relevant information resources, this request was relayed from our syndicate partner's web server to the PCEL web server. The relevant resources were retrieved from the PCEL MySQL database. This database is accessed using a server side scripting language (PHP), which enables the production of dynamic RSS feeds on the basis of Source Asserted Identifiers (CODEs) contained in UMLS.
Retrieving resources using SNOMED-CT terms using syndication can be used to build a functioning application. The process from request to display of syndicated resources took less than one second.
The results of the pilot illustrate that it is possible to exchange data between servers using RSS syndication. This method could be utilised dynamically to supply digital library resources to a clinical system with SNOMED-CT data used as the standard of reference.
丰富站点摘要（RSS）源是一种使用可扩展标记语言（XML）来传播和联合网站内容的方法。初级保健电子图书馆（PCEL）以RSS源的形式分发该网站的最新内容。当新资源添加到PCEL时，会手动为其分配医学主题词（MeSH词），然后使用统一医学语言系统（UMLS）元词表将这些词自动映射到SNOMED-CT术语。因此，该图书馆可使用MeSH或SNOMED-CT进行搜索。我们的联合合作伙伴希望基于SNOMED-CT搜索词远程访问PCEL冠心病（CHD）信息资源。
通过RSS联合在Web服务器之间传输，试点提供响应临床编码请求的相关信息资源。
我们的联合合作伙伴向其最终用户提供了一份CHD SNOMED-CT术语列表，该列表是根据UMLS规范进行编码的。当最终用户请求相关信息资源时，此请求从我们联合合作伙伴的Web服务器转发到PCEL Web服务器。从PCEL MySQL数据库中检索相关资源。使用服务器端脚本语言（PHP）访问此数据库，这使得能够基于UMLS中包含的源断言标识符（CODEs）生成动态RSS源。
使用联合方式通过SNOMED-CT术语检索资源可用于构建一个正常运行的应用程序。从请求到显示联合资源的过程耗时不到一秒。
试点结果表明，使用RSS联合在服务器之间交换数据是可行的。这种方法可动态用于将数字图书馆资源提供给以SNOMED-CT数据作为参考标准的临床系统。
