UML是当前建立面向对象复杂系统比较流行的可视化语言,虽然在Web系统开发时可以使用UML对系统的结构和行为建模,但却不能对界面布局建模,设计者只能用勾绘草图等方法来进行界面布局设计,这给UML设计者带来很大的不便.基于UML2.0的扩展机制并结合UML2.0的图交换规范建立的Web布局元模型,很好地解决了这一问题,使得Web布局建模可以统一在UML语言和UML的建模工具中,并可产生原型化的界面.
UML is a visual popular visual language for the object-oriented modeling of complex system. Although various structural and behavioral aspects of Web system under development can be modeled with UML, Web layout can not be modeled yet. Therefore, designers can only create sketches for Web layout, causing inconvenience for designers. Web layout metamodel based on UML2.0 extending mechanism and diagram interchange specification can solve the problem efficiently, making possible to unify Web layout with UML language and UML modeling tool and to generate prototypical Web user interface.