one-three-one-rule

The 1-3-1 rule is a structured framework for technical decision-making that frames a problem into one sentence, presents three options with pros and cons, and recommends a single path with an implementation plan.

To create a decision brief for architecture migration options, frame the problem in one sentence, evaluate three tooling or migration paths with pros and cons, and select one recommendation with a definition of done and actionable implementation plan.

Use a 1-3-1 brief for tooling selection when multiple approaches exist and you need to align stakeholders. It delivers three options with pros and cons and a recommended path with measurable definition of done.

Yes, you can use the 1-3-1 framework for any multi-option technical decision, particularly when choosing between architectures, tooling selections, or migration paths to generate a concise brief to share with teams.

A 1-3-1 decision brief for migration paths includes a one-sentence problem statement, three options with clear pros and cons, a single recommended path, a measurable definition of done, and an actionable implementation plan.