How to Use the Definition of Ready to Speed Up Estimation
The single biggest cause of slow estimation sessions is stories that aren't ready to be estimated. A Definition of Ready (DoR) fixes this before the meeting starts: it's the gate that makes backlog refinement actually work.
What a Definition of Ready is
A DoR is a checklist a story must pass before the team will estimate it. Unlike the Definition of Done (which applies after delivery), the DoR applies before any work begins.
A basic DoR might require:
- A clear user story format ("As a... I want... So that...")
- Acceptance criteria written in testable format
- Dependencies identified and unblocked
- UI mockups attached (if relevant)
- Business value or priority assigned by the Product Owner
How it speeds up estimation
When a story doesn't meet the DoR, the facilitator calls it out immediately: "This isn't ready: no acceptance criteria." The story is pulled, and you move on.
Without a DoR, the team spends 20 minutes trying to estimate something they don't understand, arrive at a wide spread, and either park it anyway or pick an arbitrary number nobody trusts.
How to create yours
Run a quick retrospective exercise: ask the team to recall the last time estimation stalled. What was missing? That's a DoR criterion. Common results:
- "We couldn't estimate because we didn't know who was the approver" → add decision-maker identified
- "We spent 10 minutes explaining the context" → add brief technical context written in the description
- "The scope kept changing during voting" → add scope frozen before entering sprint planning
The DoR is a living document
Revisit it every quarter. As the team matures, some criteria will feel obvious (and can be removed) while new ones will emerge from new problem patterns.
A DoR doesn't slow down the Product Owner: it gives them a clear contract for what "ready for sprint" means. That clarity helps everyone.
