为什么使用纸上原型？

• 快速构建
  -手绘草图比程序更快
• 轻松修改
  -在用户测试间隙轻松修改，甚至在用户测试过程中
  -没有编码的投入-所有的都会被丢弃（除了设计本身）
• 把注意力集中在一张大的图画上
  -设计师不用在细节上浪费时间
  -用户能提供更多创造性的建议，而不会吹毛求疵
• 无需帮助
  -只需简单的技能

But why use paper? And why hand sketching rather than a clean drawing from a drawing program? Hand-sketching on paper is faster. You can draw many sketches in the same time it would take to draw one user interface with code. For most people, hand-sketching is also faster than using a drawing program to create the sketch.
但是，为什么使用纸呢？而且，用手绘草图，而不用绘图软件画出整洁的图呢？在纸上手绘更快。在同样的时间内，手绘能比编码画更多的用户界面。对大多数人来说，手绘比用绘图软件创建草图要快得多。

Paper is easy to change. You can even change it during user testing. If part of the prototype was a problem for one user, you can scratch it out or replace it before the next user arrives. Surprisingly, paper is more malleable than digital bits in many ways.
纸很容易更改。你甚至可以在做用户测试的过程中更改。如果原型的某个部分对某个用户存在问题，你可以在下一个用户到来之前划掉或者更换它。令人惊讶的是，纸上原型在很多方面比数码原型更具有可塑性。

Hand-sketched prototypes in particular are valuable because they focus attention on the issues that matter in early design without distracting anybody with details. When you’re sketching by hand, you aren’t bothered with details like font, color, alignment, whitespace, etc. In a drawing program, you would be faced with all these decisions, and you might spend a lot of time on them – time that would clearly be wasted if you have to throw away this design. Hand sketching also improves the feedback you get from users. They’re less likely to nitpick about details that aren’t relevant at this stage. They won’t complain about the color scheme if there isn’t one. More important, however, a hand-sketch design seems less finished, less set in stone, and more open to suggestions and improvements. Architects have known about this phenomenon for many years. If they show clean CAD drawings to their clients in the early design discussions, the clients are less able to discuss needs and requirements that may require radical changes in the design. In fact, many CAD tools have an option for rendering drawings with a “sketchy” look for precisely this reason.
在早期设计中，不需要过多关注细节，而是把注意力集中在流程上，所以，手绘原型特别有用。当你用手绘草图时，你不用受到诸如字体、颜色、对齐、空白等细节的干扰。在绘图软件中，你必须考虑这些问题，而且你会在他们上面花费很多的时间－很显然，当你不得不放弃这些设计时，你在它们上面花费的时间就浪费了。手绘还可以促进从用户那里获得反馈。减少他们在与主题不相关的细节上的吹毛求疵。当没有颜色时，他们就不会抱怨色彩设计。更重要的是，一个手绘设计怎么看起来都是未完成的，不会是不可更改的（刻在石头），所以更易于接收建议和改进意见。建筑师很多年前就认识到这个现象。如果他们用整洁的CAD图给客户展示早期的设计，那么他们的客户很少提出需要大改设计的需求。实际上，CAD的工具中有个选项可以把图描绘成看起来像草图一样，似乎出于这个原因。

A final advantage of paper prototyping: no special skills are required. So graphic designers, usability specialists, and even users can help create prototypes and operate them.
纸上原型最终的优势是：不需要特殊的技术。于是，图形设计师，可用性专家，甚至用户都能够帮助建立原型、操作他们。

出处：大智交互设计
责任编辑：moby

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