Sizing epics tales from an agile kingdom
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Transcript of Sizing epics tales from an agile kingdom
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Sizing EpicsTales from an agile kingdom
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The Agile Kingdom
The Quest
The Happy Ending?
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The Agile Kingdom
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The Agile Kingdom
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Once upon a time…
The Agile Kingdom
Product Owner
Vision of Ice and Fire
Vision
RequirementsUser Stories
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The whole kingdom…sizes user stories
The Agile Kingdom
0 1/2 1 2 3 5
8 13 20 40 100 ?
ProductBacklog
13
3
2
3
5
Big user story
Big user story
Small USSmall USSmall
US
ScrumTeam
smallsmall sml
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Years went by…
The Agile Kingdom
Pricing model Price / story points
0 1/2 1 2 3 5 8 13 20 40 100 ?
equals
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Years went by…
The Agile Kingdom
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Years went by…
Business owners
Product Owner Scrum Team
The Agile Kingdom
?
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The Quest
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The brave knights…challenges
The Quest
‘We need to compare in order to size and we don’t have enough epics to compare to’
0 1/2 1 2 3 5
8 13 20 40 100 ?
‘They come in different shapes and formats – some more rich in content than others’
‘We can’t spend too much time deep-diving’
‘Not a flexible scale in Planning Poker’
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The brave knights…challenges
The Quest
‘Proportion of Uncertainty is bigger in epics than in user stories’
Epics
Volume
Complexity
Uncertainty
User stories
Volume
Complexity
Uncertainty
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The brave knights…recipes
The Quest
Blue Recipe
1. Take epics2. Do planning poker
3, 5, 3, 2, 8, 133. Multiply by scale (10)
30, 50, 30, 20, 80, 130 4. Do one Epic (breakdown and implement)
30 -> 25 5. Adjust size for everything else
25, 42, 25, 17, 67, 108
Green Recipe
1. Take epics2. Choose one epic and breakdown into user stories3. Size the user stories and sum it up
1, 3, 5, 8, 13 = 30 SP4. Divide by scale and make it Reference Epic
÷ 10 -> 3 5. Do Planning Poker
3, 5, 2, 3, 8, 16. Multiply by scale
30, 50, 20, 30, 80, 10
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The brave knights…meet the king
The Quest
?
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And the epics considered…
The Quest
The Dragon
‘As a king I want to have a dragon so that I could win battles and conquercities.’
The Dire wolf
‘As a king I want to have a dire wolf so that I can protect myself against theenemies.’
The Wall
‘As a king I want to have the Wall so that it will protect thekingdom against the White Walkers.’
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Questions set
The Quest
1. User new data capturing? A: Yes/No
2. UI changes to existing screens? A: Yes/No
3. Integration with third parties? A: Yes/No
4. Data migration? A: Yes/No
5. Does it affect internal processes? A: Yes/No
6. Change the database structure? A: Yes/No
7. Is it a re-usable configurable component? A: Yes/No
8. Specific behavior for transactions? A: Yes/No
9. Special performance considerations? A: Yes/No
10.Does it affect common functionality? A: Yes/No
11. Any product specific variations? A: Yes/No
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The gathering…sizing epics
The Quest
The Dragon Benchmark 5 points
The Dire Wolf
The Wall
Size 5 points by comparison to The Dragon
Struggle 13 or 20 points by comparison to The Dragon
There is a problem!! Too BIG for the scale!!
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The gathering…
The Quest
Inspect
The previous scale and benchmark were too small and needed adjustment
Adapt
The Wall 20 pointsRe-benchmark
The Dragon 8 pointsResize
The Dire Wolf still 5 pointsResize
Therefore the new scale and benchmark
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The happy ending?
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Turn it into story points…
The happy ending?
Blue Recipe 1. Take epics 2. Do planning poker
3. Multiply by scale
What scale? What is the multiplier?
? 4. Do one Epic (breakdown and implement)5. Adjust size for everything else
No time
Inspect
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Turn it into story points…
The happy ending?
Existing backlog epic – The Three-eyed crow
“As a king I want to have a three-eyed crow so that I can have power over nature and prophetic visions.”
The Three-eyed crow Size Trying to introduce Uncertainty
Adapt
3. Choose an epic from the backlog already broken down into recently sized user stories and on the same scale
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Final estimates…
The happy ending?
The Three-eyed crow = 5 epic points
The Three-eyed crow in the backlog
30 Story points multiplier of 6
The Dire Wolf = 5 epic points ~ 30 Story points
The Dragon = 8 epic points ~ 48 Story points
The Wall = 20 epic points ~ 120 Story points
~
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In the end…
Business owners
Product Owner Scrum Team
The Happy Ending?
visibility
better release planning
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And they continued to live happily…
…well…not ever after because each daycame with a new quest for the brave knightsin their so called shinning armors.
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The End.
Signed…a Knight in so called shinning armor.
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