Architecture Decisions Need Receipts

Every system has architecture decisions.

Some are written down. Most are buried in chats, meetings, old tickets, and one person’s memory.

That is a problem.

Six months later, someone asks why a service exists, why a queue was used, why a table has that strange column, or why a process cannot be changed quickly.

Nobody remembers clearly.

Architecture decision records are not glamorous, but they are useful. They do not need to be long. A good decision note can be one page: context, options considered, decision, consequences, and review date.

AI may make this easier by summarising discussions and drafting decision records. But the team still needs to confirm the reasoning.

The goal is not bureaucracy. The goal is memory.

A system without decision history becomes harder to change because nobody knows which constraints are real and which are ghosts.

Good architecture is not only structure. It is recorded reasoning.