He made the "Checkout" button large, green, and exactly where a thumb expects it to be.
A week later, they ran a user test. A grandmother, who usually struggled with tech, tapped through the app in seconds. Don’t Make Me Think, Revisited: A Common Sense ...
Steve was a brilliant software engineer, but his latest project—a grocery delivery app—was a labyrinth of "innovation." To find a carton of milk, a user had to navigate through three animated splash screens and a categorized "lifestyle" menu. Steve called it "immersive." He made the "Checkout" button large, green, and
"Read this," she said. "The user's brain is like a battery. Every time they have to wonder 'Can I click this?' or 'Where is the home button?', you’re draining that battery. By the time they find the milk, they’re too tired to buy it." Steve was a brilliant software engineer, but his
Steve stayed late that night, devouring the chapters. He realized he had violated the "Krug’s First Law of Usability." He had built a puzzle, not a tool.