在访问的城市当中，殿下最喜欢哪一个呢？
Which of the cities visited did Your Highness enjoy the most?
作者在论文当中，着重叙述了此框架中如何构造系统的XML元数据，和如何基于XML实现异构数据库系统的数据转换和数据的透明访问这两个问题。
We narrates how to construct the systematic XML meta-data and realize the heterogeneous database's data convertion and transparent visiting in this thesis.
在大量的数据当中，数据冗余和数据不一致现象普遍存在，它们分散、孤立的存在于各个系统中，而且这些数据也越来越难访问、管理和用于决策支持。
But among the data, inconsistent data usually exist, and they are separated, isolated as well as different in type. Even, it is hard to access or manage these data.
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