Remote Pair Programming Scan Dev 2013 Johannes Brodwall

Remote Pair Programming Scan. Dev 2013 Johannes Brodwall Exilesoft Chief scientist Gues t star ring: A dipa Gune seka ra @jhannes

Can a distributed team still be Communicating closely?

After this talk • Find a remote mentor • Pair with your remote team

1. 2. 3. 4. 5. Why How Demonstration Discussion Conclusion

Global teams

There are not enough devs here

There are not enough devs here (for most values of “here”)

(There are not enough devs here) But there are more “over there”

Communication cost increases with distance

But

Communication cost increases with distance

Everybody knows that: Communication cost increases with distance

Which would you prefer:

Which would you prefer: A. Team sits onsite, but… uses headphones all day speak to customer monthly

Which would you prefer: A. Team sits onsite, but… uses headphones all day speak to customer monthly B. Team 1/3 around the world Pair programs with local devs Speak with customer daily

Practical remote programming

Don’t send each keystroke across the world and back

We want a solution that is not super-expensive

Voice sharing Screen sharing File sharing

Voice sharing (Skype) Screen sharing (Go. To. Meeting) File sharing (Dropbox)

Ping pong

Ingredient #1: Pair programming

Ingredient #2: Test driven development

Failing test Write code Failing test

Ingredient #3: Refactoring

Failing test Write code Refactor code and tests Failing test

Put together

Failing test Write code Failing test

Failing test Write code Refactor code and tests Failing test

Demonstration

What to watch for?

What to watch for? • Collaboration • Problems and approaches

Say hello to my team!

Remember: Suboptimal network

Please: • Talk about what you see to the person next to you (whisper) • Tweet to @jhannes

Demonstration (Guest starring Adipa Gunasekara)

Kata: Number names

Kata: Number names 1 => one 2 => two 33 => thirty three 365 => three hundred and five … 1, 230, 113 => one million, two hundred and thirty thousand, one hundred and thirteen

Discussion

Benefits (Guest starring Adipa Gunasekara)

Faster Lower error rate More productive

Usage

Team startup Training Job interviews

Team startup • Me locally with customer • 3 developers in Sri Lanka • First month: Daily remote pairing on rotation • High bandwidth for learning tech and domain

Dev extension • • Not tried, but I think… • One Scandinavian dev can work closely with three devs offshore If you can double your productivity, the math looks profitable…