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Scrum XP è sempre più la metodologia di riferimento per i team e alcuni concetti sono divenuti di uso comune per chiunque operi nel mondo dell’IT (sia piccole realtà sia grandi aziende). Tra questi spiccano termini come user story e Product Backlog. L’utilizzo delle user story ha sempre più spesso rimpiazzato i tradizionali documenti di specifiche funzionali e gli use case, mentre il Product Backlog è diventato lo strumento per tracciare tutto ciò che riguarda la realizzazione di un Prodotto. Eppure entrambi hanno una serie di punti deboli. In questo talk mi concentrerò da una parte sulla difficoltà di avere un quadro completo ed evoluto a partire dal Backlog che è aihme piatto e mono dimensionale e dall’altro parlerò di cosa vuol dire veramente avere un approccio iterativo e incrementale nello sviluppo di un sistema.
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Rounding out your backlog Armani -‐ Leli
Italian Agile Day 2014
User Story
Mapping
Why we need a Vision?
Vision Board
How to create them?
Why bother?
User Story
Learning Outcomes Vision
What is a User Story
User Story Slicing
Why we bother?
Vision
Why we need a Vision?
Vision Board
Product Idea
Canvas as tools to sharing vision and create the backlog
Canvas as tools to sharing vision and create the backlog
Product Idea
Product Vision board
Business Model / Lean Canvas
User Story Mapping Capture and validate ini9al assump9on
Capture and validate Business Model
Capture and validate Product features
Canvas as tools to sharing vision and create the backlog Canvas as tools to sharing vision and create the backlog
Vision Statement
Target Group Needs Product Business Value
Write in one sentence the aim of the product
What are the needs that this product will sa=sfy?
List of main features of the product
What are the values that this product will generate for the company? Values can be profit, market share, cost saving, improve KPIs and so on..
Barriers Impediments to sa=sfy these needs
Impediments to reach these values
Who is out?
List eventually who is not the target
Barriers
List people who are the target of the product. People may be cutsomers, end-‐users, internal users … all stakeholders that will are impacted by the product. Use roles to iden=fy them
Product Vision Board
Il piu’ grande online store al mondo
Comprare online libri e altri beni Risparmiare Avere una scelta completa Conoscere i pareri di chi ha comprato la stessa cosa Comprare senza recarsi in negozio
Scheda libri e altri beni Ricerca Recensioni Carrello e acquisto on-‐line
Vendere mol= libri (e altri beni) in tuTo il mondo Eliminare i cos= fissi dei negozi
Consumatori in tuTo il mondo con connessione a Internet e Carta di Credito
Product Vision Board – Amazon 2005
Vision Statement
Target Group Needs Product Business Value
Lets go with our Vision Board!!!
How to create them?
Why bother?
User Story Mapping
Silent Brainstorming
Silent Brainstorming
Silent Brainstorming
• Decide on the type of ques9on • Step 1: generate ideas individually. One idea per post-‐it • Step 2: read and put ideas on the table • Step 3: group the ideas (clustering) • Step 4: Name each group • Step 5: prepare for vo9ng • Step 6: each person votes for their top 3 • Step 7: facilitator tallies the votes • Step 8: act on the item(s) with the highest vote!
Dimensional Planning
Dimensional Planning
• In Scrum the Product Backlog is an ordered list of features. Unfortunately the linearity of the ordered list is not consistent with the way us humans think about problems.
• Problems even in the business space are mul9-‐dimensional. So, we probably also should think of solving our problems in mul9ple dimensions. This is where Dimensional Planning comes in handy when spli[ng Product Backlog Items in your Product Backlog during the Refinement or Grooming mee9ngs.
Dimensional Planning
• In Scrum the Product Backlog is an ordered list of features. Unfortunately the linearity of the ordered list is not consistent with the way us humans think about problems.
• Problems even in the business space are mul9-‐dimensional. So, we probably also should think of solving our problems in mul9ple dimensions.
• This is where Dimensional Planning comes in handy when spli[ng Product Backlog Items in your Product Backlog during the Refinement or Grooming mee9ngs.
Dimensional Planning
Living Charter = Chartering
How to create a User Story Map
Activity
Task
Activity
Task Task Task
Activity
Task Task
Task Task Task Task Task Task
Backbone
Walking Skeleton
Some defini9on
• The post-‐its you create in Step 2 are the User Tasks (blue post-‐its in the diagram).
• The groups and group names in steps 3 and 4 are the User Ac3vi3es (orange post-‐its). Jeff calls these top two rows the backbone and walking skeleton of your applica9on.
• The user stories (yellow post-‐its) are organized under each User Task in order of highest to lowest priority for that User Task.
• The chronological order of how users will typically use the applica9on goes lec to right (Time).
Lets go with our mapping!!!
How to priori9ze a User Story Map
User Stories
What is a User Story
User Story Slicing
What User Stories are not
Tasks • Create user table • Create password
encryption service • Create login service • Create CSS • Create page template • Add login button
What User Stories are not
A document • Login.docx
• “this document, by its very size, ensures that it will never be read.” – Sir Winston Churchill
What User Stories are…
A small piece of functionality that provides some value to a user
• As a user, I want to login with my password, so that I can gain access to the site.
“A place holder for a conversation.”
What User Stories are…
I Independent * N Negotiable (can be prioritized) V Valuable (to a user) E Estimable S Small T Testable
Formats
By the book:
As a [role], I want to [some action], so that [goal]
As a [mom] I want to [login with my pwd] so that [I can gain access to the site]
Formats
Who What Why
As a [mom] I want to [login with my pwd] so that [I can gain access to the site]
The “by the book” format is great for learning, but at its core, it is just Who/What/Why
Why
• It allows you to see the big picture in your backlog.
• It gives you a beder tool for making decisions about grooming and priori9zing your backlog.
• It promotes silent brainstorming and a collabora9ve approach to genera9ng your user stories.
Why
• It encourages an itera9ve development approach where your early deliveries validate your architecture and solu9on.
• It is a great visual alterna9ve to tradi9onal project plans.
• It is a useful model for discussing and managing scope.
• Allows you to visualize dimensional planning and real op9ons for your project/product.
Story …
Story 1
Story 2
Story 3
Sprint N
-1
Sprint N
Sprint N
+1
Story 3
Story Slicing
Story 1
Story 2
Story 3
Story 4
Story 5
Story 6
Story 7
Story 8
Story 9
Sprint N
-1
Sprint N
Sprint N
+1
Wri9ng story tests
Automa9ng story tests
Implemen9ng the user story
Risk & Assump9ons
• Where are the risky stories? • Where are our biggest assump9ons?
Why slice?
User Story Slices go here:
How not to Slice?
Tasks • Create user table • Create password
encryption service • Create login service • Create CSS • Create page template • Add login button
How to Slice? • By screen (for basic screens
only)
• By button • By group of fields
• By workflow step • Optional workflow steps • Validation • Error handling * • Admin functions (maintaining
drop downs, etc)
• By priority • By applying the INVEST
model • By acceptance criteria • By option • By role
• By Subjective quality (never by objective quality: always be defect free)
• By value
Other Tips
• Keep them as stories! • Slice them small when needed, but don’t
get silly • Slice any time • When you are fighting over your planning
poker estimates – slice away. • Slice more liberally if the story is higher
priority
User Tasks
User Activities
User Stories
Time
Priorities
Releases
Re-‐priori3ze o;en
How to do it? 1. Divide into groups of 3-‐5 people 2. Start by gathering “things people do” – the tasks. Write them
down individually and then read them aloud to your group – Likely they start with a verb. – These are high level user stories called “Tasks” (walking skeleton) – This forms your story map skeleton
3. Group them silently (simply because it is faster) 4. Name the groups and lay them out in order of 9me (lec to
right) – These are called “User Ac3vi3es” (backbone)
How to do it? 5. Add more detailed user stories below the main tasks 6. Priori9ze top to bodom 7. Break into releases 8. Assign values
How to do it?
smithcdau (@smithcdau) 11-‐08-‐11 2:12 PM RT @shanehas9e: @jeffpadon if you're arguing about sequence it probably means it doesn't mader. #Agile2011 #yam
Our Final Map
Group
Task
Group
Task Task Task
Group
Task Task
thanks