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What are stories
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Transcript of What are stories
Your Bard:Paul Boos
The basics of story writing
It’s a tale of 3 purposes…
Requirement
Test Cases
WBS
I’ll grant you three C’sCardConversationConfirmation
A User Story can be managed on a Card
3 x 5 4 x 6
A Card is a
P RO M I SEto have a
Conversation
With whomdo we
converse?
the Product OwnerBehold!
(representing the business)
A Storyhas a way to
Confirmit was
fulfilled
& “Analyzed”just-in-time
A Story isBroken Down
What doesa Story
looklike?
WHO + WHAT + WHY
Elemental Form:
Doctor + Get patient’s vitals & notes + View health changes
A more powerful potion:
Role|Persona + Function + Value
Doctor + Retrieve patient’s vitals & notes + View patient health changes:
better, worse, same?
Advanced Story Wizardry
As a ____, I want to ____,So I can _____.
Let’s see an example…
As a Doctor, I want to retrieve my patient’s vitals & notes,So I can assess if her/his health is improving, degrading, or stabilizing.
As a Doctor, I want to retrieve my patient’s vitals & notes,So I can assess if her/his health is improving, degrading, or stabilizing.
NOTE: biz function, not a UI element
How can we
AcceptanceCriteria?
foreshadow
Acceptance Criteria• Provide the details on what the story needs to do
and is understandable by everyone -- clarity.• Can be used as the basis for coding business
rules.• Are the conditions to fulfill that can often become
(automated) tests.• Are unique to each story.
• They are how to confirm that the story is completed to satisfaction. 19
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Creating Acceptance Criteria
Acceptance Criteria:– Back of card– Define test scenarios – Used for Product Owner confirmation– Clarified through Q&A– Often negotiated
Given an operating sensor,When the temperature ≥ 300°F,Then display “High Temp” warning light.
Acceptance Criteria
User StoryAs an operator, I want a visual alert on the operator display when the coolant temperature is too high, so that I can avoid overheating the engine..
Elemental Form:
Bullet points of cases
• Show heart rate, temperature, white blood cell count, and % oxygen in blood
• Observation notes in chronological order
Patient Summary
A more powerful potion:
Bullet points with specifics
• Show heart rate in bpm, temperature in degrees Farenheit, white blood cell count (integer #), and % oxygen in blood to tenths of a percent
• Observation notes in chronological order with date/time nurse’s last name (“nothing siginificant” can be observed, but no blanks should be shown)
Patient Summary
Advanced Criteria Wizardry
Scenario: ________
Given ____, When ____,Then _____.
Let’s see an example…
Scenario: Imacik Pashunt Patient Summary
Given Doctor Will Heal has Imacik Pashunt assigned to him, When the Imacik Pashunt is entered to retrieve the patient summary,Then the Imacik Pashunt summary is shown with the following data:Nurse Notes shown
7 Aug @ 1815, Helpa, Patient complained of thirst, given water
7 Aug @ 1005, Helpa, Patient sleeping, but restless8 Aug @ 0210, Aiden, Nothing significant noted
AND Last Vitals shown7 Aug @ 1800, Helpa: HR: 110 bpm T: 98.7°F WBC: 5 O2:
33.2%
Scenario: Imacik Pashunt Patient Summary
Given Doctor Will Heal has Imacik Pashunt assigned to him, When the Imacik Pashunt is entered to retrieve the patient summary,Then the Imacik Pashunt summary is shown with the following data:Nurse Notes shown
7 Aug @ 1815, Helpa, Patient complained of thirst, given water &
7 Aug @ 1005, Helpa, Patient sleeping, but restless8 Aug @ 0210, Aiden, Nothing significant noted
AND Last Vitals shown7 Aug @ 1800, Helpa: HR: 110 bpm T: 98.7°F WBC: 5 O2:
33.2%
NOTE: biz action(s), not a UI element(s)
Cool Reason to do Advanced Wizardry:
We can automate our requirements as tests!
Using tools like – CucumberLettuce
JBehaveFitnessSpock
So how far should you take a Story…
…on this Magical Journey?
What is the best path?
It Depends
Confirmation
Automate Tests
Used to
Simple Story
Consider need:
repeatabilitycomplication
sizing
Some stories seem too large…
They’re
EPIC
We needto shrink
them
A Good Story adheres to the…
…principles of INVEST
ndependent
egotiable
aluable
stimatable
mall
estable
IN
V
E
S
T
Independentminimize dependencies (preferably to zero)
Negotiableability for Product Owners and Delivery members to make trade-offs
Valuablefulfills customer or end user needs
Estimableunderstood well enough to be estimated
Smallcomfortably short cycle-time
Testableability to be verified that it works
How far out do we plan these story details
Planning Horizons (your Kanban view)
Product Roadmap
Start of Elaboration
End of Elaboration
DailyWork
Epics
EpicsFeatures
Stories
Tasks
Acceptance Criteria are fleshed out here
So how do we evolve Stories?
Do we use lycanthropy?
Splitting Grooming
Conversation
Acceptance Criteria
yields
As a Doctor, I want to retrieve my patient’s vitals & notes,So I can assess if her/his health is improving, degrading, or stabilizing.
As a Doctor, I want to retrieve my patient’s notes,So I can assess if her/his health is displaying any evidence of health change.
As a Doctor, I want to retrieve my patient’s vitals,So I can assess if these give evidence for improvement, degradation, or stabilization.
Confirmation
Acceptance Criteriayields
Scenario: Imacik Pashunt Patient Summary
Given Doctor Will Heal has Imacik Pashunt assigned to him, When the Imacik Pashunt is entered to retrieve the patient summary,Then the Imacik Pashunt nurse summary is shown with the following data:Nurse Notes shown
7 Aug @ 1815, Helpa, Patient complained of thirst, given water &
7 Aug @ 1005, Helpa, Patient sleeping, but restless8 Aug @ 0210, Aiden, Nothing significant noted
There’s a spell for that…
IKIWISI
So the changes are continually
Story ElaborationAd-hoc when pulled for work
From feedback during developmentand
refined…
Let’s Practice
Back Story
We’re developing Release 2 of an application to support the potion ingredient inventory at Hogwarts College of Wizardry.
Exercise No.1Divide into 2 teams.The application needs to allow teachers and students the ability to find what potions or brews an ingredient may be used within and display these alphabetically. Potions or brews used in dark magic need to be restricted to only teachers. Wizards are impatient, better show the results in 2 seconds or less.
Elect a product owner and work with her/him to create a set of user stories; we’re looking for a minimum of who+what+why for each story.
Exercise No.1 DebriefHow many stories did you get out of that short description?
Let’s read a few.
Take 2 individual stories from your last exercise.Write these onto a a couple of flip charts.Teams swap flipcharts.For 3 min on each flip chart, write questions onto stickies about how you to confirm that the story is done.
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Exercise No.2, Part 1
Swap the flipcharts back. Now have the original team take 5 minutes to write as many acceptance criteria in bullet format as possible for that story. Replace the stickies as the Q is answered.
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Exercise No.2, Part 2
Exercise No.1 DebriefLet’s look at an example of your acceptance criteria.
What roles play into creating acceptance? Why?
Exercise No.3Take the 2 stories from the ones you generated; take 5 min for them and apply the INVEST criteria.• How you know it is Independent or if it isn’t, what dependencies
does it have to other potential stories?• What parts are Negotiable about it or if it isn’t, what makes the
constraints rigid; could we make improvements to improve this?• What tells you it is Valuable to the user, or if it isn’t how could it be
given value? • Could you Estimate its complexity, or if you cannot then what
would you want to know to get more understanding?• What gives you confidence it is Small; and able to be completed it
in an iteration you might typically have, or if not, what would give you more confidence?
• And what makes it Testable, or if not, how could you improve that?Record this information onto a flip chart to share
Exercise No.3 DebriefFor the stories you generated, what are your comments on size? Small? Large?
What brought you to that conclusion?
How do you think size effects cycle-time and throughput?
Exercise No.4Take one of the requirements provided.
At your table, turn this into a story with acceptance criteria.
Once you have done so, apply the INVEST criteria.
Exercise No.4 DebriefLet’s share our stories…
Could we identify a role or persona? What about the value statement?
How well did what we have map to our acceptance criteria?
How did we do in making the stories small enough?
And the team lived…
…withgreater knowledge
ofstory-writing.
Yet…
You have now finished basicstory writing
The Sleeper Has Awaken!