core agile values
DESCRIPTION
TRANSCRIPT
Core Agile Values
SESSION CODE: DPR302
Llewellyn Falco Agile CoachSpun Labs
Woody ZuillScrum Master
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DemoCowboy Programming
Mistakes : 11
Cost: $2.75
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DemoWaterfall
Mistakes : 7
Cost: $1.75
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DemoAgile
Mistakes : 19
Cost: 19₵
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Methodologies
Cowboy Waterfall Agile
$2.75 $1.75 $0.19
11
7
19
Cost Mistakes
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Core Agile ValueReduce the Cost of Mistakes
Ways to mitigate the cost of mistakesDetection (early)Change (easy)Area of Effect (reduced)
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Mistake #1
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What was the Mistake?
How would you mitigate the cost of mistakes?Detection (early)Change (easy)Area of Effect (reduced)
Misunderstood Requirement
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Never say NeverMisunderstood Requirement
Requirements Demo
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Recap #1Misunderstood Requirement
Onsite Customer
Detection
1 customer, use your own product
Business analyst. Trust. Tunnel Vision
Agile Practice
Issue
First Steps
Common Mistakes
Resources Lean Software Development by Mary Poppendieckwww.industrialxp.org/sittingTogether.html
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Mistake #2
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What was the Mistake?
How would you mitigate the cost of mistakes?Detection (early)Change (easy)Area of Effect (reduced)
Knowledge Silo
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Recap #2Knowledge Silo
Pair Programming
Change
½ hour a day, everyday
1 person watching
Pair Programming Illuminated by Laurie Williams
Agile Practice
Issue
First Steps
Common Mistakes
Resources
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Mistake #3
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What was the Mistake?
How would you mitigate the cost of mistakes?Detection (early)Change (easy)Area of Effect (reduced)
Changing Requirement
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Recap #3Changing Requirement
Refactoring
Change
2 minute steps. Automatic Refactorings
Rewrites, Adding Functionality Working Effectively w/Legacy Code by Michael Feathers
Clean Code by Robert Martin
Agile Practice
Issue
First Steps
Common Mistakes
Resources
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Mistake #4
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What was the Mistake?
How would you mitigate the cost of mistakes?Detection (early)Change (easy)Area of Effect (reduced)
Integration
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Recap #4Integration
Continuous Integration
Detection, Area of Effect
Automated Build, Source Control
Killing the messenger
Agile Practice
Issue
First Steps
Common Mistakes
ResourcesCI: TFS, CruiseControl, Hudson, Team City.SourceControl: TFS, SVN, Git, Mercurial, Tortoise*Build: MsBuild, Nant
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Mistake #5
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What was the Mistake?
How would you mitigate the cost of mistakes?Detection (early)Change (easy)Area of Effect (reduced)
Bugs
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Bugs
Start Code QAEnd Code
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Recap #5Bugs
Test Driven Development
Detection
Write steps in English
Test after
Frameworks: MSTest, NunitBook: Test Driven Development, Kent Beck
Agile Practice
Issue
First Steps
Common Mistakes
Resources
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Test Driven Development ( TDD)
// make a new order
// buy 10 shirts at R100 each
// set sales tax to 10%
// verify order total
var order = new Order();
order.AddItem(“Shirt”, count: 10, price: 100);
order.SalesTax = .10;
Assert.IsEqual(1100, order.Total);
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Mistake #6
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What was the Mistake?
How would you mitigate the cost of mistakes?Detection (early)Change (easy)Area of Effect (reduced)
Built Something Users Didn’t Like
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Recap #6Built Something Users Didn’t Like
Iterative Development
Detection
Reduce Scope to 2 weeks.
Partial Work doesn’t count.
Agile Retrospectives, Esther DerbySucceeding with Agile, Mike Cohn
Agile Practice
Issue
First Steps
Common Mistakes
Resources
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Iterative Development
Requirements2 Small Circles in Center Line at bottomRectangle around everything
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Iterative Development
VS
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CommonAgile Practices
On Site CustomerPair ProgrammingRefactoringContinuous IntegrationTest Driven Development (TDD)Iterative Development (Scrum)
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Agile Introduction [repeated]
10.5 Easy Code Excellence Techniques [Refactoring]
A Hands On Coding Dojo - Part 1 & 2 [ TDD ]
So Cal Code Camp – Jan 29th & 30th
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TeachingKidsProgramming.org• Do a Recipe Teach a Kid• Free Courseware (recipes)• Ages 10 ++• Microsoft SmallBasic
