Bill Verplank was a man who could do what most can’t; he had the ability to draw while he spoke. His drawings are interacting designs with the words he was saying. In his interaction designs he comes up with three important questions to answer; how do you do, how do you feel, and how do you know? “How do you do” is really how are you affecting the world in the actions you are taking. For the person you are designing for, are you doing something for them? The next question asked, “How do you feel” is really asking how do you get feedback? Does the person you’re designing for feel a good feeling from your work or a bad feeling. The last question you must ask is “how do you know?” For this question you provide the users exactly the right amount of information to understand how to use your work. Maps or just giving something identification is a good way to help the users understand. With these three questions answered successfully, that’s how you’ve identified your product as a success.
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