Kaustav Roy

A chilling exploration of how broken interfaces, ignored warnings, and human error conspired in silence — until the world heard the blast. The world’s worst nuclear disaster was not just a failure of physics. It was a failure of design Theme: Human-machine interaction and interface design in high-risk environments This case study draws heavily on my work at Eugenie.ai, where I got the chance to design on AI-powered dashboards for assets and process-level management in heavy industries. That experience s...

How to Drive Real User Engagement by Transforming Intent into Action through Behavioral Design A familiar theme Ah, January 2025 (yes, somehow we made it through another year!) and there you are again, making The Big Fitness Promise™. You go all in — download the fancy workout app, set a million reminders, and buy enough gear to open your own gym (because those moisture-wicking socks were on sale, okay?). Week one? You’re basically Rocky Balboa. But then February hits, and suddenly those perky app notif...

How Understanding Motivation, Ability, and Prompts Can Enhance User Engagement and Drive Positive Behavior Change Imagine reaching for your phone as soon as you wake up in the morning. A brief skim of your social media stream quickly becomes thirty minutes of pointless scrolling. Even though you didn’t plan to do this, the notifications, tailored suggestions, and never-ending content pulled you in. What was that just now? A series of cues (those little red notification dots), ability (convenient access ...