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Slide deck of a workshop facilitated at the conference Global SCRUM GATHERING Berlin 2014.
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Alex Schwartz HERE, a Nokia Business
A New Dojo: The Art of Story Splitting
Presented at the Global Scrum Gathering Berlin 2014
My Journey• Software
development since 1990
• RolesProgrammer
-> Tech Lead -> Release manager -> Lean Manager (DevOps, Continuous Delivery)
-> Coach (Inhouse)
• Companies:<<startups>>
Martial Arts (Aikido) since 1990
Dojo 道場=
place for practicing a martial art
= trainings hall
mutual respect
save
together trust
Dojos
(Martial Arts)Dojos Coding Dojo
Coaching Dojo
Conflict Dojo
……
Story SplittingDojo
Rachel Davies:http://www.agilexp.com/presentations/AgileCoachesDojo.pdf
Story Splitting Dojo
• Born end of 2010• Inspired by Lisa Crispin,
at Agile Testing Days 2010• Max participants: 50 • Number of sessions: approx. 30
most in my company (HERE/Nokia) + a few on conferences
Story Splitting Dojo: Setup & Roles
Responsibilities1 x facilitator1 x product owner
Facilitator• Watches the process• Does not answer question
regarding the story/epic
Product Owner• Answers questions
regarding the story/epic• Does not help to split the
story/epic
Padovan• Works on splitting the
story/epicUp to 5 working groups with up to 8 padovans each
…
…
Story Splitting Dojo: Setup & Roles
1 x facilitator2-5 product owner
Up to 10 working groups with up to 10 padovans each
…
…
- XL variant -
…
…
…
Facilitator mingles with POs
Build your team• Introduce yourself• Agree on a name for your
team• Agree on the most
important purpose to split stories
…
Let’s take it away… or onegaishimasu!
How we will split Epics/Stories?
Huge Storyor
Epic
Story #1
Story #2
Story #3…
Story #4
First story with scenarios using GIVEN-WHEN-THEN
Example for ScenariosAs a user of MyCoolBlog.com, I want to login into my blog, such that I can start sharing my thoughts.
Scenario: Login with valid credentials works. Given a user of MyCoolBlog.com with its login credentials When the user logs in
Then the login is accepted And the homepage of the user is shown.
Scenario: A login with invalid credentials is rejected.Given a user of MyCoolBlog.com with its user name and wrong
passwordWhen the user logs inThen the login is rejected
And the forgotten password page is displayed.
From the example story below, create acceptance criteria for scenarios using the GIVEN-WHEN-THEN style.
StoryAs an internet shopper, I want to specify the address to which my items are to be shipped, so that I can get the items I ordered.
Notes• There are already items in the cart• There is no shipping available outside of Germany• An address checking service exists• The next step in the flow is checkout
Warm-up Exercise
From the example story below, create acceptance criteria for scenarios using the GIVEN-WHEN-THEN style.
StoryAs an internet shopper, I want to specify the address to which my items are to be shipped, so that I can get the items I ordered.
Notes• There are already items in the
cart• There is no shipping available
outside of Germany• An address checking service
exists• The next step in the flow is
checkout
Warm-up Exercise - Debrief
• What did you experienced in your group?
• Was it easy to select the WHEN?
• What if the external service is down?
Story Splitting Exercise
Instructions: In your working group (using flipchart paper on the table)
• split the epic into stories• The first story has to
be described using with scenarios using GIVEN-WHEN-THEN.
• All stories have to be end-2-end stories and deliver user value.
• Order the stories by business value
Epic:As an Internet shopper, I want to select shipping options for my items during checkout and see the shipping cost.
Notes:• User has already entered shipping address. • User will be able to choose different
options for different items. The options are Post, 5-day Ground, 2 day and Overnight. Items > 20 lbs. are Ground only.
• PO Box addresses can only be shipped Post.
• We have API to cost calculator available, takes postal code and weight
© Copyright Lisa Crispin 2009 and Janet Gregory, used with friendly permission by Lisa
Story Splitting Exercise – DebriefEpic:As an Internet shopper, I want to select shipping options for my items during checkout and see the shipping cost.
Notes:• User has already entered shipping address. • User will be able to choose different
options for different items. The options are Post, 5-day Ground, 2 day and Overnight. Items > 20 lbs. are Ground only.
• PO Box addresses can only be shipped Post.
• We have API to cost calculator available, takes postal code and weight
© Copyright Lisa Crispin 2009 and Janet Gregory, used with friendly permission by Lisa
• Present your stories to the big group
• PO: How did you perceived being in the role?
• How long it took until a group asked if we sell more heavy items?
• Who knows what is our business?
Story Splitting Exercise – Round 2Instructions:
Focus on the specific question provided to your group.
Epic:As an Internet shopper, I want to select shipping options for my items during checkout and see the shipping cost.
Notes:• User has already entered shipping address. • User will be able to choose different
options for different items. The options are Post, 5-day Ground, 2 day and Overnight. Items > 20 lbs. are Ground only.
• PO Box addresses can only be shipped Post.
• We have API to cost calculator available, takes postal code and weight
© Copyright Lisa Crispin 2009 and Janet Gregory, used with friendly permission by Lisa
Questions for Round #2• What is the smallest slice?• Is there an example of “business value without
implementation”?• Is there a potential legal issue?• Thinking about hosting/operations: Is there a
risk of an outage? If so, how you deal with it?
Retrospective
• What did you experienced in your group?• What did you learn about Story Splitting?• How to better practice Story Splitting?• Other example stories?• What do you like about this Dojo format?• What are your ideas for improvement?
Thanks!
Please provide feedback!
domo arigato gozaimashita
or
Background: Resources covering Story Splitting
• Arto Eskelinen conducted a workshop “Slicing User Stories” on the Global Scrum Gathering Berlin 2014 and used a nice pragmatic technique
• Mike Cohn mentions in his book “Estimation and Planning” several good ideas for slicing
• Gojko Adzic introduced the Hamburger Method for slicing stories: http://gojko.net/2012/01/23/splitting-user-stories-the-hamburger-method/
• Paul Boos has a pretty comprehensive slide deck “User Story Splitting”, http://de.slideshare.net/pmboos/user-story-splitting
• The InfoQ article http://www.infoq.com/news/2011/04/how-to-split-user-stories provides a good overview of different approaches
Hint for searching for more references:
There are two terms: “story splitting” and “story slicing”.
Benjamin Felis provided a sketch of the session:https://twitter.com/benjaminfelis/status/514363329562038272/photo/1
Thanks!
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