1.
The Ultimate Developer Collaboration Technique
PING PONG PAIR PROGRAMMING
Anthony Sciamanna
@asciamanna
Nick Goede
@ngoede
Heart of Agile Pittsburgh – April 27, 2017

2.
Nick Anthony
20082005
Acquisition - 2013
Early 2014
Nine years of experience working together, practicing and coaching teams on XP
XP Organization
2000

3.
The Problem

4.
Pair Programming is really interesting, everybody
talks about it but no one does it.
- Bryan Helmkamp, Founder and CEO Code Climate, Baruco 2013
“

5.
Traditional Pair Programming Challenges
What we’ve heard…

6.
I never get to type!

7.
Whenever I am driving my pair
just looks at their phone.

8.
I can’t ever get into flow
when pairing.

9.
Talking about everything I’m
doing slows me down.

10.
Developers new to TDD & pair
programming think they have
to solve the big problems
before they start pairing

11.
Programming By Coincidence
AKA Debugger Driven Development

12.
Ping Pong Pair Programming

13.
Pair Programming
Test-Driven
Development
Ping Pong Pair
Programming

14.
2. Write only
enough production
code to make the
test pass
1. Create a failing unit test (not
compiling counts as a failing test)
3. Refactor only when all unit tests are passing
Ping Pong
Pair
Programming

15.
Nick Anthony
Writes a failing test Makes the test pass
Writes the next failing testMakes the next test pass
Only when all tests pass either person can refactor
Continue until both people agree there are no more tests to write

16.
Solutions

17.
I never get to type!

18.
Whenever I am driving my pair
just looks at their phone.

19.
I can’t ever get into flow
when pairing.

20.
Talking about everything I’m
doing will slow me down.

21.
DEMO
The Bill Payer App
Allows users to view, manage, and autopay
their bills

22.
USER STORY
As a bill payer I want my mortgage bill paid
on its due date or the first business day
after its due date (when it falls on a non-
business day), so that I can maximize the
time that I keep my money in my account
without incurring penalties

23.
Anthony
https://youtu.be/WZsLNrnS4yk

24.
Nick
https://youtu.be/WujNniqzf9U

25.
Anthony
https://youtu.be/OoSvlJv24hE

26.
Nick
https://youtu.be/Kl6UbPtJNGo

27.
Anthony
https://youtu.be/kUkD_Ak6PLc

28.
Nick
https://youtu.be/5VEuhMLS_Mk

29.
USER STORY
As a bill payer I want my water bill paid on
its due date or the first business day before
its due date (when it falls on a non-business
day), so that I can maximize the time that I
keep my money in my account without
incurring penalties

30.
Anthony
https://youtu.be/6coH9P0Yuxg

31.
Nick
https://youtu.be/CSzFSzsKaXM

32.
Anthony
https://youtu.be/1gfihiwx8dw

33.
Nick
https://youtu.be/4SfL6WWsCjo

34.
Nick
https://youtu.be/1eFAMNBStCo

35.
Anthony
https://youtu.be/P_u5OWjAcWo

36.
Try Ping Pong Pair Programming!

37.
CONTACT US!
We love talking about Agile Software Development, XP,
developer practices, helping development teams improve
how they work and their code, etc.
Nick Goede
@ngoede
ngoede@gmail.com
http://nickgoede.com
Anthony Sciamanna
@asciamanna
asciamanna@gmail.com
http://anthonysciamanna.com
Github Repo – Each Step of Ping Pong Pair Programming Demo
https://github.com/asciamanna/ping-pong-pair-programming-talk