摘要
随着超文本标记语言(XML)成为互联网上数据表示和交换的标准,出现了许多与之相关的应用。在分析WIS/GISC数据获取的功能和性能需求基础上,设计一套基于XML的异步通信气象数据订阅系统。介绍该订阅系统的建设背景、主要用途和适用范围,描述了通过XML描述气象元数据、订单和分发元数据的方案、订阅功能设计和并行处理模式,给出了系统的数据流程。设计方案在实际系统中得以实施,达到了应用需求。
XML,emerging as a standard for data representation and exchange on the Internet,plays an important role in varieties of applications.According to the analysis of the functional and performance requirements of WIS/GISC data access,a meteorological data subscription system is designed based on metadata presented by XML and the asynchronous communication mechanism.The background,usage,and scope of the subscription system are introduced.The scheme of describing meteorological metadata and order and dissemination information metadata represented by XML,the subscription functionality technology,the system design pattern,and the system workflow are given.The design has been implemented in the Beijing GISC system and meets the application requirements satisfactorily.
出处
《气象科技》
2012年第4期591-595,共5页
Meteorological Science and Technology
关键词
XML
订阅系统
元数据
气象数据
XML
subscription system
metadata
meteorological data
