Short answer
Handle real constraints first. Then compare optional initiatives with the lightest method that exposes the uncertainty in your decision.
Choose your starting point
Use the chooser when you do not know which method fits. Use the worked example when you need to see how constraints and scores become an actual roadmap decision.
A practical order of operations
- Name the outcome and the period covered by the decision.
- Separate mandatory work from optional opportunities.
- Choose one comparison method that matches the available evidence.
- Record every estimate and the evidence behind it.
- Test whether plausible input changes reverse the result.
- Publish the decision, rejected options, and revisit conditions.