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At first, Leo was horrified. He felt like they were moving backward. But when they ran a focus group, something amazing happened. Users who had struggled with the "Smart" version for twenty minutes were now making perfect toast in five seconds. They laughed, they chatted, and they actually enjoyed using the device because they didn't have to think about it.
Frustrated, the CEO, Sarah, walked into the lab and wrote four letters on the whiteboard: kiss electronics
The lead engineer, Leo, was a fan of complexity. He loved sensors, sub-menus, and touchscreens. But a week before launch, the prototype crashed because it couldn't decide if the bread was "Wheat" or "Multigrain." At first, Leo was horrified
"Keep It Simple, Stupid," she said, tapping the board. "Leo, people don't want a computer that toasts. They want toast." Users who had struggled with the "Smart" version
She challenged the team to redesign the interface using the KISS principle:
Instead of an LCD screen displaying a progress bar, they made the toaster beep once when it was done.