XML 也是自描述和信息完整的；应用程序可利用这一特性通过少量必要的编程或无需编程来自动构建自身。
XML is also self-describing and informationally complete; applications can use this feature to automatically build themselves with little or no programming required.
表单和视图的名称一般都需要翻译，因为它们是可以看到的。所以，在编程时有必要为它们添加别名。
The form name and view name usually need to be translated because they are visible, so adding the alias name is necessary for programming consideration.
在一种动态类型语言中，使用元编程特性来实现高级设计经常是必要的。
In a dynamically typed language, it is often necessary to use metaprogramming features to implement advanced designs.
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