Journal
Notes from the practice
Short pieces on keeping application analytics honest—schemas, drop-offs, cohorts, and the boards teams actually open.
Naming events that survive releases
A stable event vocabulary reduces rework when features ship. Here is a practical naming pattern used across product teams in Seoul.
Reading drop-off without panic
High exit rates at a step are not always a design failure. Context decides whether you redesign, clarify, or leave it alone.
Cohorts that match how people use apps
Calendar cohorts are easy. Behavior cohorts explain retention. Choose based on the question you need answered.
Dashboards for release weeks
Release periods need a short list of health signals—not a wall of charts nobody opens under pressure.