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

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Contact

Llewellyn Falcollewellynfalco.blogspot.com@isidore_us

Woody Zuillwzuill@yahoo.com