根据对XML规范内容和要求的一致理解，应用程序可以轻易生成这种格式，并且其它应用程序也可以方便地使用这种格式。
That format is easily produced by applications, as well as consumed by (other) applications, based upon an agreed upon understanding of what the XML specification provides and demands.
“如果根据这样的要求定义文化，那么这种文化只能在人类社会才能找到，”Thornton说。
"If you define culture according to that, then culture is necessarily something that you find only in humans," Thornton said.
这种数据结构约束的弱化要求根据需要强化应用程序逻辑中的约束。
This weakening of the data structure constraint requires the strengthening of constraints within the application logic as necessary.
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