【摘要】 首先阐述随着JSR168规范的制定,一方面人们对网格门户的研究越来越广泛,但另一方面各门户平台间的差异造成Portlet的可重用性较差。其次介绍了一种构建系统架构的新方法MDA,它的核心思想是将系统的行为逻辑模型与特定的目标平台分离,此模型只需建立一次,然后可以重用于现有的或将来可能推出的不同系统平台。随后提出了在此基础上构造可应用于不同门户平台的门户网站的一般步骤。最后给出一实际门户配置系统来对此做详细阐述。更多还原

【Abstract】 With the set up of JSR168 specification,people have more and more passion on grid portal research,but on the other hand,the difference among portal platforms makes portlet’s reusability difficult.Then we describe a new method to build system architecture: MDA,whose central philosophy is to abstract the system’s action model from specific platform.This model should only be set up once and transit these models over time as the standards or infrastructure technologies change or evolve.Based on this,we propose the normal steps to develop a portal site which can be applied to any portal container.Finally,a real configuration system is illustrated to describe the steps in detail.更多还原