Remote pair programming conference 2012

Remote Pair Programming

A Guide for Distributed Agile Teams

Wednesday, August 15, 12

Agenda

OverviewPeople

Challenges“You’re Remote Pairing Today”

TechnologyWednesday, August 15, 12

http://svy.mk/pairprogram

Feedback

Joe Moore - @joemjoe.moore@gmail.com

Pivotal Labs - @pivotallabshttp://svy.mk/pairprogram

Pair programming since 2000

Remote pair programming full time since 2010

Pair Programming?

Two developers coding on the same

development workstation

Pair Programming?

Solving the same problem, at the same time, together

Pair Programming?

• Higher quality • Fewer defects • Focus • Intensity • Faster

problem solving • Knowledge transfer • Code review •

Remote pair programming

Pair programming, but not at the same physical computer

What does it look like?

Remote pairing:debugging a phone

http://youtu.be/mfoJ6mBVi2w

Challenges

Remote pairing:(listen for both our voices)

http://youtu.be/CWJMzW1ZqNE

Remote pairing:coding via screen sharing

http://youtu.be/4PkT1bbmA4I

Your projectis split between

multiple locations

You work for a “virtual company”

Your project has remote developers

Someone needs another person’s expertise

but they’re not co-located

You’re giving a remote pairing interview

RPP can have the same benefits as

in-person pair programming

Counteract remote development pitfalls

Silo is a four-letter word

Some people like it better than in-person pairing?

It’s true! I’ve heard it multiple times!

It’s about the people, not just technologies

You can’t fix a team of tools with tools

Patience

Express your ideasclearly and concisely

Extremely good pairing etiquette

“Do you mind if I drive?”“I’m going to grab the mouse.”

“Can I look at something?”“Go ahead and drive.”

Supportive operations/infrastructure team

A good attitude

Team must be generous and understanding

Do’s and Don’ts

• Be patient • Be assertive about being included

• Make an effort to include remote dev• Take breaks, play ping pong• Use video (especially at first)

x Exclude remotes from local conversationsx Exclude remotes from meetings

x Be the strong, silent typex Just walk away

x Lay your headphones on keyboard

Don’t…How?

Regarding Video

I’m striving for a “high fidelity”

experience

Let’s play a game called:“What’s going on?”

What’s going on?

Challenges

The same challenges as in-person pair programming

Challenges

Lacks some of the traditional work-from-home benefits

(especially full-time pairing)

Challenges

Lack of shared facilities

Challenges

Lack of shared facilities

• Whiteboards • Notecards • Big visible charts • Information

radiators • Lunch area • Hallway conversations •

Challenges

2 timezones is hard

Challenges

3 timezones is harder

Challenges

12 timezones is…???

Challenges

Technology gremlins

ChallengesTechnology gremlins

• flaky internet • firewalls • Skype • crappy software • broken hardware • Skype

• VPNs • SKYPE

• Skype • Skype • Skype • Skype • Skype • Skype • Skype • Skype • Skype ype • Skype • Skyyyyyyyype • Skype • Skype • Skype • Skype • Skype • Skype SKYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYPE!!!!!!! • Skype

• Skype • Skype • Skype • Skype •

Skype • Skyyyye!!! • Skype • Skype • Skype • Skype •

Skyyyyyyyyyyyyype!!! • Skype • Skype • Skype • Skype • Skype • Skype •

Skype • Skype • Skype • Skype • Skype • Skype • Skype • Skype • Skype •

ChallengesWorking from home?

Get savvy with your home network

Meetings, stand-ups, scrums, planning sessions, etc?

But what about…

Now what?

“You’re remote pairing today”

1. Find a headset 2. Exchange Skype info and invites3. Call, preferably with video4. Talk about RPP experiences5. Agree on OS, editor, dev setup6. Choose and try a screen sharing tech

Remember theDo’s and Don’ts

Remote pairing interviews

See previous list, and also:

• Send interviewee a setup email 24 hours before the interview

• Consider browser-based screen sharing for simplicity (more later)

“You’re remote pairing today”Remote pairing interviews

Hello Sally --

I'm Joe Moore, software engineer at Pivotal Labs. You and I will be remote pairing today! Do you mind answering a couple of questions and performing a little setup?

• What is your Skype ID?• What operating system are you using? Are you on a Mac, PC, or Linux machine?• What is your screen resolution?

If you could, please download and install TeamViewer, which we will likely use

Remote pairing interviews

Questions

before we talk about technology?

The Tech

There will be problems

The Tech

Fast high speed Internet,especially upload bandwidth

from the host

The Tech

Remember wired networks?

They’re fast!

The Tech

VPN: gateway through firewalls

The Tech: Screen Sharing

Many options depending on networks speed, firewalls,

ease of use

The Tech: Screen Sharing

Full desktop sharingor

Terminal based

The Tech

Full Desktop Sharing

The Tech: Screen SharingFull Desktop Sharing

ConsiderationsCross

Platform? Works across Windows, Mac, Linux

No VPN Some (usually) punch through firewalls, some don’t

In Web Browser

Quickest way to get a session going, but sometimes limiting

2-Way Control

Presentation software only allows the host to control

Joe’s Recommendations

Cross Platform No VPN In Web Browser 2-Way Control

✓(VNC) X X ✓✓ X X ✓X ✓ X ✓✓ ✓ ✓ ✓✓ ✓ ✓ ✓✓ ✓ ✓ ✓✓ ✓ X X

✓ ✓ ✓ X

Screen Sharing

The Tech

/System/Library/CoreServices

2-Way Control

✓✓✓✓✓✓XX

Pause for

The Tech: “Screen” Sharingtmux – shared ssh sessions

• Fast! • Good for Vim, Emacs editors• Popular in Ruby, Scala communities• Best for low bandwidth connections• Addictive usage model

The Tech: “Screen” Sharingtmux cont…

• Requires ssh access, possibly VPN• Learning curve using tmux commands• Desktop screen sharing for some activities• Not for IDEs - iOS, Java, .NET

The Tech

Video Conferencing

The Tech

Love it or hate it, Skype is ubiquitous and has

great echo cancelation

Video Conferencing

The TechVideo Conferencing

http://www.cisco.com/web/telepresence

Development Workstation

Computer for Development

Laptop for

Snowball Mic for Groups

orOffice

Speakers for

Groupsor

Office

Headest

Long Term Remote Pairing

Works best withdedicated RPP stations

and dedicated audio/video laptops

Dedicated stations: everyone knows where to find

the remote people

Telepresence, etc.

Random Thoughts

“Skype-enabled”meeting rooms

Conference Rooms

http://www.cisco.com/web/telepresence

Conference Rooms

What about iPads?

Promising!

What about iPads?

What about ROBOTS!?!?!

http://anybots.com

http://www.newscientist.com

http://internetdebris.blogspot.com/

OMG ROBOTS!!!!!!

http://www.newscientist.com

http://internetdebris.blogspot.com/ ???

OMG ROBOTS?????

Thank You!Joe Moore

Pivotal Labs@joem

joe.moore@gmail.comhttp://svy.mk/pairprogram

Remote pair programming conference 2012

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