Backlog and estimation
The product backlog (ordered, refined, detailed at the top), relative estimation in points, planning poker, velocity and delivery forecasting, ordering by value and effort.
- 24 cards
- 6 topics
- Free
The outline, topic by topic
Each topic is weighted the way the exam weighs it.
- Concepts
- Questions
- Sort and link
- The numbers
- Scenarios
- Understand
A few cards from the deck
Product backlog: what is it?
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An ordered list of everything thought necessary to evolve the product, kept up to date at all times.
It is ordered, not just listed: the top holds what will be done first, the bottom holds still-vague ideas.
A team committed to 25 points. At the end of the sprint, items totalling 20 points meet the Definition of Done, and 5 points are 90% complete. What is the velocity of the sprint?
- 20 points
- 25 points
- 24.5 points
- 22.5 points
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20 points
Velocity counts only what is fully finished. The 90% items are worth 0 points for this sprint and are counted in the sprint where they are finished.
The values on planning poker cards follow a sequence close to the … sequence, whose gaps grow with size.
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The values on planning poker cards follow a sequence close to the Fibonacci sequence, whose gaps grow with size.
The gap between two values grows with size, reflecting that uncertainty grows with it: nobody decides between 12 and 13.
Backlog refinement: what is it?
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An ongoing activity of splitting, detailing, estimating and reordering backlog items so they are ready to enter a sprint.
The top of the backlog is refined mostly, just before it is needed: detailing the bottom would be wasted work, as priorities will change.