Tell us something you designed recently. What were the key metrics for your design, and how did you measure them?

Question Analysis

This question tests your ability to design a solution and evaluate its success. It requires you to discuss a recent design project, focusing on the objectives you set, the metrics used to measure success, and how you monitored these metrics. The interviewer is interested in your problem-solving skills, creativity, and how data-driven you are in evaluating the effectiveness of your designs.

Answer

Situation: Recently, I designed a user interface for a mobile application aimed at improving user engagement for an e-commerce platform. The challenge was to create an intuitive and visually appealing design that would encourage users to spend more time on the app and ultimately increase conversion rates.

Task: My task was to develop a new interface that would simplify the navigation process and highlight promotional offers more effectively. The key metrics to evaluate the success of this design were user engagement, measured by the average session duration, and the conversion rate, measured by the percentage of sessions that resulted in a purchase.

Action: I started by conducting user research to understand the pain points in the existing interface. Based on the feedback, I designed a cleaner layout with more prominent call-to-action buttons and streamlined the checkout process. I implemented A/B testing to compare user interactions with the old and new designs.

Result: After launching the new design, we observed a 20% increase in average session duration and a 15% improvement in conversion rates over three months. These results were measured using Google Analytics and in-app tracking tools. The success of the design was validated through increased user satisfaction and revenue growth.

By clearly defining and measuring key metrics, I was able to objectively assess the effectiveness of my design and make data-informed decisions to enhance the user experience.