It lets you build flexible code that can be assembled at run time without requiring source code links between components.
它使您能够创建灵活的代码，这些代码可以在运行时装配，无需在组件之间进行源代表链接。
2
If access to the source or target system is required, these links will launch the source and target portals for easy access.
如果需要访问源系统和目标系统，这些链接将启动源门户和目标门户，以便轻松访问它们。
3
The only thing that you cannot do is to create a cycle, meaning the source activity links to the target activity which links back to the source (similar to an endless loop).