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Dev.to
7/13/2026
The Psychology Behind Great Software

The Psychology Behind Great Software

Short summary

The article applies five psychology principles—Hick's Law, Jakob's Law, Progressive Disclosure, Peak-End Rule, and Aesthetic-Usability Effect—to software design with real product examples from Google, Instagram, Uber, and Asana. It argues that understanding human behavior is as important as technical skill for building successful products. The piece also touches on how psychology affects engineering team dynamics and warns of a dark side to these techniques.

  • •Five UX psychology principles explained with real product examples
  • •Great software adapts to people, not the other way around
  • •Psychology also impacts team communication and decision fatigue

Generated with AI, which can make mistakes.

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