Top 3 Adr Interview Questions
Browse 3 real-world technical and behavioral interview questions about Adr. Review scenarios, edge cases, and architectural best practices.
Every architecture document you have inherited is out of date. How do you write documentation that survives contact with a changing system?
Stale documentation is a symptom of documenting things that change faster than anyone will maintain them. Write down decisions and their reasons, which are immutable once made, generate anything derivable from the code, and let the rest go undocumented on purpose.
You want to reverse a decision recorded in an ADR two years ago, and everyone who made it has left. How do you go about it?
Reconstruct the original context first and test whether it has genuinely changed or whether you simply inherited a cost you dislike, then write a new record that supersedes rather than edits the old one, price the half-reversed state explicitly, and get agreement from the teams who now carry the consequences.
What belongs in an architecture decision record, and how do you decide a decision deserves one?
An ADR captures the context that forced a choice, the options considered with the reason each was rejected, the decision, and the consequences including the costs you accept. Write one when the decision is expensive to reverse or would surprise a future reader, and supersede it rather than edit it.