“Interaction design is the art of facilitating or instigating interactions between humans (or their agents), mediated by products. By interactions, I mostly mean communication, either one-on-one (a telephone call), one-to-many (blogs), or many-to-many (the stock market). The products an interaction designer creates can be digital or analog, physical or incorporeal or some combination thereof.
Interaction design is concerned with the behavior of products, with how products work. A lot of an interaction designer’s time will be spent defining these behaviors, but the designer should never forget that the goal is to facilitate interactions between humans. To me, it’s not about interaction with a product (that’s industrial design) or interaction with a computer (that’s human-computer interaction). It’s about making connections between people.”
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