Architecture decision records: what to get right first

The gap between knowing this and actually doing it is where most teams lose ground. If you only fix one thing about architecture decision records this quarter, make it the first item below.

Most systems fail at the seams rather than inside any one component. Most teams find the first pass takes an afternoon and the maintenance takes minutes a month.

Start here

Record the decision, the alternatives, and why they were rejected. The teams that handle this well are rarely the ones with the biggest budgets. If two people in the business would answer this differently, that gap is the actual problem.

Then this

The reasoning is what future teams actually need. The teams that handle this well are rarely the ones with the biggest budgets. The teams that stay on top of it are the ones who put it on a calendar rather than a wish list.

Eventually

A short record beats a long document nobody opens. There is a version of this that is over-engineered, and it is worth avoiding. If two people in the business would answer this differently, that gap is the actual problem.

How to tell if yours is fine

Architecture is the set of decisions that are expensive to reverse, which is the only reason they deserve the name. Three things worth confirming about architecture decision records before you move on:

• Someone can say what the current setup is without going to look
• The reasoning is what future teams actually need — and you know whether that is true here
• There is a way to tell whether the last change to this helped

Worth checking on your own setup before it becomes someone else's problem to fix.