[rakuten techconf2014] [a-5] lessons learned from ruby

Lessons learned form Ruby Powered by Rabbit 2.1.2

Lessons learned form Ruby

楽天技術研究所ネットワーク応用通信研究所

RubyアソシエーションHeroku

まつもとゆきひろYukihiro "Matz" Matsumoto

@yukihiro_matz


　

1993


　

Crash of Bubble economy in Japan


　

Project Cancel


　

Skunk works


　

Lesson １


　

Don't ask for permission,beg for forgiveness


　

Permission


　

You can permit only when you understand


　

Limit of asking permission


　

Persuasion


　

Compromise


　

Hinders innovation


　

The Innovator's Dilemma


　

Innovation


　

You need freedom to innovate


　

Lesson ２


　

Don't value ideas


　

Idea matters in innovation


　

Or not


　

Ruby


　

Object-oriented scripting language


　

Everyone can think of


　

Perl, Python,...


　

It only takes a minute to make up an idea


　

It takes months or years to implement


　

Mere idea matters not


　

Adding ideas can ruin the product


　

Mere ideas have no value


　

Ideas without implementations have no value


　

Details matter


　

Working implementations matter


　

Community matters


　

Philosophy matters


　

Lesson ３


　

Never give up


　

Software Lifespan


　

Apps: 2+ years


　

Services: 5+ years


　

Frameworks: 10+ years


　

Languages: 20+ years


　

Some software live long


　

Have higher viewpoint


　

Adopt changing situation


　

Application domains


　

Scripting → Web


　

Sysadmin

Research computing

Embedded programming


　

Changing platforms


　

Multi-core

Cloud


　

Tooling


　

RubyGems

Ruby on Rails

New Relic

Code Climate


　

Ruby did not have CPAN


　

Ruby has RubyGems


　

Ruby was slow


　

Ruby is faster


　

We always meet complaints


　

Complaints are good


　

Most people just leave without complaints


　

Complaints tell us where to improve


　

They indicate you have room to improve


　

Don't give up


　

Cheer up


　

Move forward bit by bit


　

You will win gradually


　

Lesson ４


　

Mind the power of OSS


　

Open Source Software


　

Free Software


　

Libre Software


　

FLOSS


　

Free/Libre/OpenSource Software


　

Richard Stallman


　

Stallman is my hero


　

He changed the world


　

The Internet is driven by FLOSS


　

Linux


　

Apache


　

Ruby, PHP, Python, Perl


　

MySQL, PostgreSQL


　

OpenOffice, LibreOffice


　

DNS, OpenSSL


　

Firefox, Chromium


　

1998


　

The term "OSS" was created


　

Rephrasing free software


　

Software Freedom


　

Freedom to execute1.

Freedom to study2.

Freedom to modify3.

Freedom to redistribute4.


　

Engineers' paradise


　

Engineers' instinct


　

You can be better with freedom


　

The power of secrecy


　

The infomation has nature to spread


　

The power of disclosure


　

The new business model


　

Implicit alliance


　

If you can't stop it


　

You must join in


　

And you can't stop it


　

No choice


　

Thanks RMS!


　

Software development has changed


　

Internet based development


　

Decentralized development


　

Social Coding


　

Github


　

Lesson ５


　

Mind the community


　

Community


　

OSS community


　

Made by spontaneous volunteers


　

Mostly driven by techical interest


　

Or maybe by career pressure


　

Most successful OSS has atractive community


　

Technologically, Philosophically


　

OSS communities are like sharks


　

Must move forward, or die.


　

Need continuous progress


　

To entertain/atract members


　

If we stop progressing


　

The community will lose interest


　

They will go away


　

And start more interesting things


　

Moving forward over stability


　

Progress over cost


　

Even in the enterprise


　

Lesson ６


　

Amateurism


　


Don't value ideas

Never give up


Mind the community


　

Software development has changed


　

Hard to forecast


　

Hard to estimate


　

Need to be flexible


　

Keep moving forward


　

Adopt the situation


　

Amateurism


　

In software development


　

Great amateurs surpass ordinary professionals


　

Software made by amateurs


　

Be amateurs


　

Summary


　

From Ruby experience, I learned those lessons


　


Don't value ideas

Never give up


Mind the community


　

Be great amateurs


　

Driven by technological interest


　

Create great software


　

To create great future


　

Thank you!

[rakuten techconf2014] [a-5] lessons learned from ruby

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