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Now let's turn to feedback. How would you let a user know

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when something was done? How does the user know that the action has

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been completed? So now, now you're going to do the exchange. So

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now you're exchanging with someone. How do you know when it's been completed?

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>> Okay.

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>> You know what's funny about these questions, is they seem obvious. Like,

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duh, right, but actually when you're the designer, you have to think about this.

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>> Yeah.

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>> What happens that shows it's done?

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>> Mhm.

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>> The numbers change. Does anything else happen?

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Do they see the numbers change? If you view

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this like some Apple products sometimes, like when

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you delete something, the little piece moves into the

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trash can. You know, that's feedback. Right? But

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it's also feedback that showed what happened. Like this

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thing didn't just disappear, it moved into this

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other folder that you can actually go to. [SOUND]