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What is Agile development and how do I do it?
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Agileor: how I learned to stop worrying and love
changing requirements
Eric [email protected]
ReadyTalk
● Best company to work for in CO ('11-current)● Deloitte’s Technology Fast 500 ('08-current)● Best benefits in Colorado!
Labs/Open Source
Agile
Client: I am calling you about the folders you designed and printed.Me: Yes…Client: The prints are exactly as you showed us in the concept.Me: Yes…Client: We don’t want that
Waterfall AgilePhased Iterative
Working software in the final phase Working software at every build
Different people in different phases Same set of people
Verification is done in the final phase Verifiability driven
Predictive planning Adaptive planning
Less visibility - artifacts and prototypes More visibility - working software
Changes accepted at particular stages only
Changes embraced anytime
Key Differences
Manifesto for Agile Software Development
Individuals and interactions over processes and toolsWorking software over comprehensive documentation
Customer collaboration over contract negotiationResponding to change over following a plan
That is, while there is value in the items onthe right, we value the items on the left more.
Story Sizing
● First, t-shirt sized (general)● Next, pointed (more specific - LOE)● Facilitates communication of assumptions
and unknowns● Process is more important than actual point
value
Devs
Scrum Master
Product Owner
● Self Organizing● Plans individual work though iteration● cross functional, collaborative● accountable to each other
Key Challenge: delivery as a team vs. individual tasks
Devs
● keeps the team on track● removes obstacles (process)● improves process by conducting retros● monitors throughput and cycle time to look for
bottlenecks
Key Challenge: Listens without trying to propose a direct solution
Scrum Master
● Leads the team● defines value and vision for a project (high level)● prioritizes backlog● creates user stories and acceptance criteria● reviews and rejects work at delivery time
key challenge: doesn't control which and how many items go into an iteration
Product Owner
Agile In The Wild
Agile In The Wild
Scrum: The Basics
Iterations/Sprints
● Story Pointing● Iteration Planning● What tasks are stories broken down into?● Development!● Demo.● Retrospective
Scrum
● Daily Standup● Max 15 minutes● Covers:
○ What I did yesterday○ What I’m planning on doing today○ Blocks
Retrospective
● Iteration Review● Demo of shippable products to PO● What worked? What didn’t?● What stories did we finish?● Re-prioritize backlog stories● Defines goals for next sprint
Adaptability
Inspect and Adapt CONSTANTLY!• Change from Scrum to Kanban• Retrospectives• More awesome, less suck.
Pull vs. Push
Push
Pull
Bad!
Rock and Roll
Welcome to the future
● prioritize on demand● story pointing is 1 5 10● weekly throughput● Kaizen through retros
○ brief weekly○ in depth monthly or as needed
SWAG!
Eric [email protected]