A new web product data management architecture is presented. The three-tier web architecture and Simple Object Access Protocol (SOAP) are combined to build the web-based product data management (PDM) system which incl...A new web product data management architecture is presented. The three-tier web architecture and Simple Object Access Protocol (SOAP) are combined to build the web-based product data management (PDM) system which includes three tiers: the user services tier, the business services tier, and the data services tier. The client service component uses the server-side technology, and Extensible Markup Language (XML) web service which uses SOAP as the communication protocol is chosen as the business service component. To illustrate how to build a web-based PDM system using the proposed architecture, a case PDM system which included three logical tires was built. To use the security and central management features of the database, a stored procedure was recommended in the data services tier. The business object was implemented as an XML web service so that client could use standard internet protocols to communicate with the business object from any platform. In order to satisfy users using all sorts of browser, the server-side technology and Microsoft ASP.NET was used to create the dynamic user interface.展开更多
可扩展的标记语言(XML)是万维网协会(W3C)定义的用于优化 Web 上的传输的 SGML 的子集。它是一种元标注语言,提供一种描述结构数据的格式。本文讨论使用 XML 作为数据的标准格式。Web 发展的趋势是数据集成和管理,而只有利用 XML 才是...可扩展的标记语言(XML)是万维网协会(W3C)定义的用于优化 Web 上的传输的 SGML 的子集。它是一种元标注语言,提供一种描述结构数据的格式。本文讨论使用 XML 作为数据的标准格式。Web 发展的趋势是数据集成和管理,而只有利用 XML 才是解决这一问题的关键。展开更多
XML 良好的可扩展性、自描述性、开放性、互操作性、支持多文种、使 XML 已经成为 Web发展的主流趋势。本文介绍了 XML技术实施中的体系结构和主要技术难点 ;XML与数据库的连接 ;XML数据在客户端与服务器之间的交互 ;客户端对 XML 结构...XML 良好的可扩展性、自描述性、开放性、互操作性、支持多文种、使 XML 已经成为 Web发展的主流趋势。本文介绍了 XML技术实施中的体系结构和主要技术难点 ;XML与数据库的连接 ;XML数据在客户端与服务器之间的交互 ;客户端对 XML 结构的解析。展开更多
基金the National Key Project Foundation of China (No. 2001BA201A0605) and partially supported by the State Key Lab for Mechanical Transmission..
文摘A new web product data management architecture is presented. The three-tier web architecture and Simple Object Access Protocol (SOAP) are combined to build the web-based product data management (PDM) system which includes three tiers: the user services tier, the business services tier, and the data services tier. The client service component uses the server-side technology, and Extensible Markup Language (XML) web service which uses SOAP as the communication protocol is chosen as the business service component. To illustrate how to build a web-based PDM system using the proposed architecture, a case PDM system which included three logical tires was built. To use the security and central management features of the database, a stored procedure was recommended in the data services tier. The business object was implemented as an XML web service so that client could use standard internet protocols to communicate with the business object from any platform. In order to satisfy users using all sorts of browser, the server-side technology and Microsoft ASP.NET was used to create the dynamic user interface.
