building the right thing
DESCRIPTION
My presentation on building the right thing through collaboration and continual discovery. Presented at Agile Australia 2012.TRANSCRIPT
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Building the Right Thing
through collaboration and continual discovery
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The Team
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The Team
Joanne
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The Team
TerryJoanne
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The Team
Terry SallyJoanne
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#293 - Add a new friend by email address (M)
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#293 - Add a new friend by email address (M)2/5/12 - Terry, Joanne, Sally
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#293 - Add a new friend by email address (M)2/5/12 - Terry, Joanne, Sally
IN OUT
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#293 - Add a new friend by email address (M)2/5/12 - Terry, Joanne, Sally
IN OUT- searching for friends by name
- autocomplete when typing name
- inviting new users to join if they are not members already
- select friend by searching by email address
- only show addresses of those that aren’t my friends already
- confirm when I add a friend, only add them if I answer yes
- back to email search results when I answer no
- “You are now friends” confirmation afterwards
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• Defer detail until the last responsible moment
• Understand and solve the problem together
• Capture the conversation but keep it simple
• Define “done”
• Stop telling/start building as soon as you have enough detail
Good Stories are Told, Not Written
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To Do Dev Test Done
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To Do Dev Test Done
Day 1
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To Do Dev Test Done
Day 2
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To Do Dev Test Done
Day 3
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To Do Dev Test Done
Day 4
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Last Day
To Do Dev Test Done
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Last Day
To Do Dev Test Done
Average time in play:
4+ days
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To Do Dev Test Done
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To Do Dev Test Done
Day 1
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To Do Dev Test Done
Day 2
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To Do Dev Test Done
Day 3 - Dev is Blocked!
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To Do Dev Test Done
Helping to Free Up Test...
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To Do Dev Test Done
Dev is Unblocked
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To Do Dev Test Done
Day 4
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To Do Dev Test Done
Day 4
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To Do Dev Test Done
Last Day...
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To Do Dev Test Done
By the End of the Day
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To Do Dev Test Done
By the End of the Day
Average time in play (cycle time):
2.6 days
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cost
cycl
e ti
me
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4 days X 5 stories = 20 days cost
cycl
e ti
me
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2.6 days X 5 stories = 13 days 4 days X 5 stories = 20 days
cost
cycl
e ti
me
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To Do Doing Done
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• Build things in a way that allows people to play earlier
• Don’t retreat to your bay in the assembly line
• Think: concurrent activities, not sequential phases!
• Share the responsibility for getting stories to “Done”
Reducing Cycle Time
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• Spot the problem using statistics
• Split stories by fidelity or functionality
• Swarm to complete things faster
Keeping Stories On Track
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Individuals and Interactionsover Processes and Tools
The Agile Manifesto
[email protected] @brentsnook
http://www.slideshare.net/fuglylogic/building-the-right-thing
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• Kent Beck, Cynthia Andres, Extreme Programming Explained: Embrace Change (2nd Edition), Addison-Wesley Professional, 2004
• Alistair Cockburn, Agile Software Development: The Cooperative Game (2nd Edition), Addison-Wesley Professional, 2006
• Niklaus Wirth, A Brief History of Software Engineering, 25 Feb 2008, 1 May 2012 <http://www.inf.ethz.ch/personal/wirth/Articles/Miscellaneous/IEEE-Annals.pdf>
• The Rise and Fall of Waterfall, Youtube, 2 May 2012, <http://www.youtube.com/watch?v=X1c2--sP3o0>
• The Agile Manifesto, 1 May 2012, <http://agilemanifesto.org>
• Little's Law, Wikipedia, 2 May 2012, <http://en.wikipedia.org/wiki/Little's_law>
• Jeff Patton, Kanban Over Simplified, Agile Product Design, 2 May 20102, <http://www.agileproductdesign.com/blog/2009/kanban_over_simplified.html>
• Timeline of computing 1950–1979, Wikipedia, 21 May 2012, <http://en.wikipedia.org/wiki/Timeline_of_computing_1950%E2%80%931979>
• Gang of Four, Design Patterns: Elements of Reusable Object-Oriented Software, Addison-Wesley Professional, 1994
• William J. Brown, Raphael C. Malveau, SkipMcCormick, Thomas J. Mowbray, Anti Patterns: Refactoring Software, Architectures, and Projects in Crisis, Wiley, 1998
• Anti-pattern, Wikipedia, 21 May 2012, <http://en.wikipedia.org/wiki/Anti-pattern>
• Sasa Stamenkovic, Queuing Theory, 3 April 2009, 21 May 2012, <http://stamenkovic.se/2009/04/03/queuing-theory/>
• Images created with Paper (www.fiftythree.com/)
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