Systems remember decisions in code, but code rarely explains the conditions that made the decision reasonable.
Months later, a team sees a queue, database or vendor and cannot tell whether it was a deliberate trade-off or an accident. The missing context slows change and encourages repeated debate.
What good engineering looks like
An architecture decision record can be brief: the decision, context, considered options, consequences, owner and date. Store it near the system, link it to implementation and supersede it when conditions change.
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Describe the decision in concrete terms.
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Record constraints and assumptions.
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Name rejected options and why.
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State positive and negative consequences.
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Define the trigger for revisiting the choice.
A practical starting point
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Choose one recent irreversible or expensive decision.
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Write a one-page record from the available evidence.
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Review it with affected teams.
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Add decision recording to the delivery workflow.
The decision to make
The value is not documentation volume. It is preserving enough organisational memory to make the next decision with context.