Glossary term
What is ADR (Architecture Decision Record)?
ADR stands for Architecture Decision Record.
A short document recording a design decision. Example: "We chose PostgreSQL because…".
Learn it properly · System DesignLesson 6: What Is System Design? Start With RequirementsTwo teams build the same app; one collapses on launch day. The difference is not coding skill but system design — and good design always starts with requirements you can measure.