She introduced me to stock dog trials and taught me a whole lot, which enabled me to begin training my next ACD.
也是她让我开始接触畜牧犬测试，让我懂得了很多知识，而这些知识最终促使我开始训练我的下一只澳洲牧牛犬。
So it is more likely UCD stands on a higher level than the ACD, but ACD focuses on some more detailed stuff: the activities.
所以从某种程度上来说是UCD站在了一个更高的层次上去看整个用户，而ACD则是更深入地去研究用户的构成要素之一：行为。
Comparing with UCD, ACD has minimized the persona data to an "activity" level, really convenient for some quick developing, but loses some important characteristics of a fully built persona.
和UCD相比起来，ACD将人物角色模型的数据量减少到仅有行为的程度，对于快速开发来时相当的方便，但是与完整的人物模型相比，失去作为一个角色的一些重要的特性。
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