Seeing is understanding.Seeing is understanding.

TangibleBug TrackingUsing LEGO Bricks

Change Vision, Inc.

Takeshi Kakeda

takeshi.kakeda@change-vision.comAgileConference20088/5 Sheraton A, LC

Seeing is understanding.Seeing is understanding.

About Me●My name is Takeshi Kakeda

● Certified Scrum Master●Agile Community

● Participation in Japan since 2001.●Book

● One of the translators● “Agile Software Development with SCRUM”

● One of the reviewers● “Agile Estimating and Planning”

● Japanese original Books● Unit Testing, Eclipse, FreeBSD, Linux, etc

Seeing is understanding.Seeing is understanding.

About Me

Change Vision, Inc.I'm developing “TRICHORD”.

– Agile Team Kanban Board

http://trichord.change-vision.comhttp://trichord.change-vision.com

Seeing is understanding.Seeing is understanding.4

I'm from...

Tokyo, Japan

Here we arein Toronto

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Agile Communities in Japan

It'll be talked about Agile contextin Japan– 14:00 – 15:30– Kenora, 2– Presenter is Tsutom Yasui.

Please check it out!

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Japanese Open Space

Session calender about Japanese Presenter

We're going to have a party tomorrow. Please visit our space today.

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Table of Contents

What's BUG-LEGO?History of BUG-LEGOThree KeywordsBUG-LEGO on softwareConclusion

Seeing is understanding.Seeing is understanding.

What'sWhat'sBUG-LEGOBUG-LEGO

Seeing is understanding.Seeing is understanding.

LEGO Duplo LEGO

LEGO Bricks?

LEGO Bricks was made in Denmark in 1949.

A baby may eat a small piece of

LEGO!

Seeing is understanding.Seeing is understanding.

LEGO duplowith my children

Seeing is understanding.Seeing is understanding.

What's BUG-LEGO？

The structure built such as a bug...

Seeing is understanding.Seeing is understanding.

What's BUG-LEGO？

The tangible bug-tracking systemwith using tiny structure

built of lego bricks

Seeing is understanding.Seeing is understanding.

History History of BUG-LEGOof BUG-LEGO

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Before BUG-LEGOWorkflow

Catch a bug

Check BTSand

Create task

Fix it!

Create a ticket

Closethe

ticket

Seeing is understanding.Seeing is understanding.

Motivator

We got an idea of BUG-LEGO in week “FURIKAERI”.

Let's think abouthow we can see a stock of bugs.

“That's LEGO Bricks!”

Seeing is understanding.Seeing is understanding.

“FURIKAERI”

http://www.tnm.jp/gallery/search/images/max/C0032483.jpg

Stop and Turn around to go forward

Same meaning to retrospective, reflection meeting

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Initial version

There were no ticket id.

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First improvement

Ticket id on a sticky

note Summary on a sticky note

Tiny structurebuilt by lego

Seeing is understanding.Seeing is understanding.

After BUG-LEGOWorkflow

Catch a bug

Build bug-lego

Checkand

Create task

Fix it!Destroy it!

Create a ticket

Closethe ticket

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Second improvements

Priority

Dependency

DifficultySeverity

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Priority

High

Middle

Low

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Difficulty or Severity

Simple Complex

Easy/Trivial Difficult/Critical

Representation of complexity of structureas difficulty or severity of software bug

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Dependency

#138

#132

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Final version

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Three Keywords of BUG-LEGO

ConsciousnessChange of MindsetConstraint

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Consciousness

Everyone is conscious of the amount of software bug whoever come in the room

By the sounds

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Change of Mindset

Changing mindset against bug– Negative -> Positive

Pleasure in– Construction– Destruction

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Constraint

Physical constraint became a driver of reducing bugs

15inch x 15inch No constraint on BTS

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Comparison ofbefore and after

Before After

Attitude to bugs

The stock of bug

The number of peoplewho knows about bugs

Negative Positive

Increase Decrease

DeveloperDeveloperSales staffManager

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Suitable for

Early stagesCollocatedWith stakeholdersLean

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Unsuitable for

There are already many bugs DistributedOnly developer

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Next Idea Using LEGO Bricks

Progress Indicatorby giant lego

Building legofor delivered

story

Building lego as a tangible

goal

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BUG-LEGO onSoftware

Let me show you

This is developed by Akiya Mizukoshi(Change Vision, Inc)

Seeing is understanding.Seeing is understanding.

Conclusion

LEGO bricks make software bugs tangible, noticeable,and fun.– We tried BUG-LEGO

“FURIKAERI” is great activity.

Seeing is understanding.Seeing is understanding.

Question (1)

Q: What is merit on comparison with kanban on a wall?

A: It looks like kanban functionally. I'd like to use LEGO bricks as kanban :)

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Question(2)

Q:Did developers stop working because they enjoyed building LEGO bricks?

A: No, they don't ;)

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Thank you so much!