scalable design-as the application grows, so too can the various components without affecting the underlying application logic 随着应用程序的增长,各种组件也能够增长,同时不影响底层的应用程序逻辑。
this allows for a scalable design in that new user-agent mappings can be added to the portal as new devices become available, but portlets need not change their behavior 这样就可以使用可伸缩的设计了,在这种设计中,新的用户代理映射可以作为新设备添加到门户,但portlet不需要改变自己的行为。