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Most agile software development team grapple with user stories as a technique for understanding what needs to be developed iteratively. Come to this workshop to hear some techniques for uncovering useful user stories and how to slice them in a way to deliver value in small increments. We’ll give you a cheatsheet for story splitting to take away with you
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THE ART OF SLICING & DICING USER STORIES
@RachelCDavies
A WORKSHOP IS LEARNING THROUGH YOU DOING SOME WORK ..
RACHEL DAVIES Agile Coach @Unruly Media, London
Started as software developer in 1988… …Consulting, designing, engineering, leading, coaching, training…. Co-author of first book on “Agile Coaching” in 2009.
ABOUT UNRULY MEDIA Unrulymedia.com
ABOUT YOU
WORKSHOP AIMS
! What is a “user story”
! What is a “persona”
! Why is a persona valuable
! Try story splitting
! Not covering estimation or prioritization or implementing stories
What is a User Story?
A user story is a short description of a system feature that is:
“…understandable to customers and developers, testable, valuable to the customer and small enough so that the programmers can build half a dozen in an iteration.”
Kent Beck, 2001
3C’S
" Conversation between customer & developers
" Card notes of story & tests on index cards
" Confirmation tests that show story is complete
• Ron Jeffries, Xprogramming.com
Find out more .. Talk to users &
stakeholders! In person or hangout/chat
START WITH A CONVERSATION
QUESTIONS HELP FIND CONTEXT
Ask questions to uncover the user stories.. • Who will use it? • What problem are they trying to solve? • What’s their goal? • Why is this valuable to them? Understand this before diving into solution
details
USER STORY FORMAT
EXAMPLE USER STORY
EPICS?
Old saying “A bird in the hand, worth two in the bush” Look for ways to deliver small amount of value as early as possible!
BENEFITS OF SPLITTING
Small stories are:
• Better understood
• Get delivered more quickly
• .. ?
Iteration, RELEASE WHEN READY
Consumable Vertical Slices
DTSTTCPW Do the simplest thing that can
possibly work!
Epic User Stories
T
Acceptance Tests
T
T
T
T
Sometimes creating acceptance tests uncovers new stories
SMALLEST STORY IS A TEST
HOW TO SPLIT
• What does a user see?
• What information is essential?
• What can a user do?
• What behaviours does the system have?
• What safety needs to be considered?
• Failure cases • What platforms is this supported on?
Business TECHNICAL
Needs Options
Business Development
Value
SHARED RESPONSIBILITY
NURTURING EMPATHY
Through workshops, interviews and gathering research
Mining personas
Comments/Notes
PUT YOURSELF IN THEIR SHOES
CREATE AN EMPATHY MAP FOR ONE PERSONA
Nurture empathy with Visible personas
DIALS There are dials that we can move up and down to iteratively improve the story through iterative delivery.
SAFETY How much do we need to protect the user?
How helpful does system need to be?
SLICK? How pretty does the system need to be?
REALITY How much of the system needs to be there?
PRACTICAL WORK
GROUPWORK
! Get into groups of 2-4 people
! Grab some index cards
! Select one personas
! Use an empathy map to get into their shoes
! Write user stories relevant to this persona
! What dials can you apply to the stories you write? " Safety? Helpfulness? Slickness? ..?
Goal: as many stories as possible!
HEADLINE “EPIC” STORIES
! Happy couple: Invite guests to contribute photos
! Guests: Upload photos
! Happy couple: Select photo set to share
! Guests: Add information about photos
! Guests: View photos
CREATE AN EMPATHY MAP FOR ONE PERSONA
THANK YOU!
www.slideshare.net/RachelDavies
LINKS • Story Maps Jeff Patton
http://www.agileproductdesign.com/blog/the_new_backlog.html • Bill Wake http://xp123.com/articles/twenty-ways-to-split-stories/ • Rachel Davies
http://agilecoach.typepad.com/agile-coaching/2010/09/ideas-for-slicing-user-stories.html
• Richard Lawrence http://www.richardlawrence.info/2009/10/28/patterns-for-splitting-user-stories/
• Lasse Koskela http://radio.javaranch.com/lasse/2008/06/13/1213375107328.html • James Grenning http://www.renaissancesoftware.net/blog/archives/48 • George Dinwiddie http://idiacomputing.com/pub/UserStories.pdf • Joe Rainsberger
http://www.jbrains.ca/permalink/how-youll-probably-learn-to-split-features • Thomas http://agile-management.com/wordpress/splitting-user-stories/ • Mark Levison
http://agilepainrelief.com/notesfromatooluser/2010/09/story-slicing-how-small-is-enough.html and http://agilepainrelief.com/notesfromatooluser/2010/12/more-notes-on-story-splitting.html
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