Develop Yourself

Kata, Kumite & Randori

Who am I?

● Susi Moog● 50% Neusta / 50% TYPO3 Inc.

● Coaching / Teaching Devs● Scrum Master● Dev-”Mom”

What Makes a good Musician?Knows music theory

Knows how his instrument works

Some talent and creativity

And…

Training, Training, Training

What Makes a good Athlete?Fitness

Predisposition

Some talent

And…

Training, Training, Training

...And Develope

rs?

The Typical DevTrained by an apprenticeship or from university

… or not trained in IT at all

Lots of theoretical knowledge

Expected to solve highly complex problems“Training” is done on the job

Software Development?Creative Process

… and a craft

Software craftsmanship?No entry barriers

“Bad code works, too”

No unified tools

There is no “right way”

Manifest For Software CraftsManshipKnow your tools

Editor

Keyboard

Language

Libraries

Patterns

Creativity

http://manifesto.softwarecraftsmanship.org/#/en

Your Editor / IDELearn shortcuts

Customize it!

Look for plugins

Extension of your limbs

Take time to learn it

Editor SummaryUsing your editor should be like a reflex

Needs to be trained

Go your way

Training

Training - Kata, Kumite, RandoriConcept from martial arts

Automate motions

Repeat, Repeat, Repeat

Secure Space to Practice

Kata = only you

Kumite = you and a partner

Randori = group of people / team

What’s A Kata?Simple problem

Time Box

Start from scratch - every time!

Kickstarter on github (php, C#, JavaScript)

Kata WorkflowRemove distractions

Open your IDE

Start the counter

Start to code

TDD style: red, green, refactor

Stop after time is up

Recap

Delete code

Kumite | Randori WorkflowEither “come green - go green” or

“come red - go red”

Smallest possible step to get the test green

So e.g.

Person A: red Test, green Test, Refactor

Person B: red Test, green Test, Refactor

After every cycle switch person

For 1 hour not more than 5 people

Only the current pair talks

Recap with group at the end

Kata - Critics Every day the same - that’s boring / not helpful

Do it differently every day

Variations

Use specific patterns

No mouse

SOLID principles

… your own

Don’t forget the recap

It’s training!

Kata Exampleshttps://projecteuler.net/

http://www.codewars.com/ -> https://www.codewars.com/kata/heavy-metal-umlauts/train/php

OMG! Live

Coding!

Code Reviews

Pair Program

ming

Code Reviews / Pair ProgrammingGreat way to learn

Be open to critique

Find the right partner

Trust

Honesty

Skill Level

Sympathy

SummaryConsciously train your skills

Refactor (or throw away) frequently

Adhere to YAGNI

Evaluate and recapitulate your work

Achieve Greatness!

Links; Further Readinghttp://youtu.be/2mhjxp1SdKY?t=3m43s (Rowan Merewood - Building Better Developers)

codekata.comcodingdojo.orgkatas.softwarecraftsmanship.orgpaulwpagel/codekatahttp://blog.codinghorror.com/the-ultimate-code-kata/Credit for the basic presentation goes to @djbasster

Thank You