传统的软件工程方法对用户界面交互行为设计的支持较少。
Traditional software engineering methods have less support to the design of user interface interactive behavior.
软件的行为是品牌的一部分，用户对产品的体验反映的是形式、内容和行为的合理平衡。
Your program's behavior is part of its brand, and your user's experience with your product should reflect the proper balance of form, content, and behavior.
每个用户都自然地对软件如何执行任务有一个心理想像，这种想像寻找原因—效果模式来深入了解机器的行为。
Each user naturally forms a mental image about how the software performs its task. The mind looks for some pattern of cause and effect to gain insight into the machine's behavior.
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