Designers talk a lot about Human-Centered Design where it is important to design for the needs of the person. Well, this doesn’t work when the goal is millions of people all across the world. Computers and software, phones and applications, automobiles, kitchen appliances and housewares are intended for consumption by millions. Human-Centered Design can no longer apply: what does it mean to discover the precise needs of millions of people? Instead, I have argued for Activity-Centered Design, where the activity dictates the design.

Technology dictates the activity. In turn, the activity dictates the design. When the design is appropriate for the technology, people accept it, regardless of culture.