Zen of Palm - 设计验证
Design Validation
How does the blacksmith learn to make the perfect horseshoe?
Validating the design of your product’s user interface.
Validating Design Quality
To get a feel for what it’s like being uncomfortable with computers.
Basic User Testing
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Does the application accomplish a complete, if limited, task?
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Can the user figure out what the application does from its name and, especially, from its user interface?
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Does your user interface imply all sorts of tempting functionality that is not actually implemented in your application? (Perhaps a redesign is indicated to avoid user confusion and disappointment.)
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How long does it take a user to figure out the full task?
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How long does it take the user to remember how to perform a task that he or she previously figured out?
Test early
Test with simulations
Test selectively
Test outsiders and be methodical
Test iteratively
在做产品的时候， 可用性测试越早做越好，即便你只是想要测试一个功能，对一个功能有任何疑虑都可以通过可用性测试来得到启发。以免避免之后要大幅度的修改。 你可以找任何一个人来做可用性测试，不一定需要非常正式，亲戚朋友都可以拉来做，让他们完成一项简单的任务，观察他们的使用方式，用了多久才完成任务，记录他们遇到的困难，和她们交流使用心得，都能帮助您更好的修改你的产品。在产品迭代的时候，也需要时不时的进行可用性测试，以便更好的改良。
What You Find
You need to know if users can’t figure out where they’re supposed to touch the screen or what to enter.
Use pain language Flush out terminology that need to be replaced with plain language.
Keep the course of action clear 用户对你的产品都会有一个大致的感受，如果他们在一开始使用的时候就感到你的产品很难使用，那之后就很难改变了。 用户体验你的产品的时候，遇到要进行选择的时候，用的是排除法，因此若提供太多的选择，反而会让他们感到迷茫。 若只有一两个，那么用户则会更加容易上手。
##Solution to Riddle 3
不仅要同客户交流使用体验，也要观察他们是如何使用的。
