one-three-one-rule

The 1-3-1 framework is a structured decision-making format for technical proposals that produces one problem statement, three options with trade-offs, and one concrete recommendation with an implementation plan.

Comparing multiple architecture approaches is done by generating three distinct options with pros and cons, then selecting one recommended choice accompanied by a definition of done and a concrete implementation plan.

Structuring trade-off analysis for refactoring strategies or migration paths requires framing a clear problem statement, evaluating three viable options with pros and cons, and finalizing one actionable recommendation.

You need a structured options analysis format for technical proposals when a task has multiple viable approaches and your team requires a clear recommendation and a concrete implementation plan to align quickly.

This options analysis framework is designed for technical projects like architecture decisions, tool selection, refactoring strategies, and migration paths, enforcing a fixed output structure for technical trade-off evaluation.

A 1-3-1 decision analysis output includes a problem statement, three options with pros and cons, a recommended choice, a definition of done, and an implementation plan to guide the technical project.