GMO'less Software Development Practices

software development practices
GMO{ the art of developing software in a natural way }
Lemİ Orhan ERGİN
Principal Software Engineer @ Sony
@lemiorhan
‘LESS

Lemİ Orhan Ergİn
Principal Software Engineer in Sony
has worked in Tüsside, BYM, GittiGidiyor/eBay
and Sony as developer, team leader, technical
coordinator and scrum master
got CSM certiﬁcate from Jim Coplien
year as Scrum Master
sprints and 4 years as team member and
scrum master
experienced in agile transformation and
building agile culture in teams & organizations
2001
2013
2009
1
56
agile
@lemiorhan

projects?failedHave you ever had

We won’t make it, we need extra time
I know it’s impossible, but we’ve already promised
We have to cancel the project before going live
We are facing critical bugs in production
We have to re-write the project from scratch
No one knows when the project will be ﬁnished
It was obvious that the project was going to fail
Everything was going ﬁne, but what the ...
“
”Project management / Team

It’s very expensive to add these features
One guy left and the project failed
People in development team is always changing
Technology and design of the project are too old
I ﬁxed a bug and new ones appeared
No one has touched some modules for years
I cannot add new features while ﬁxing bugs all day
We are doing same manual tests again and again
“
”Software Developer

11I have worked in
enterprise level
projects in my career

B2B ecommerce site for the mould industry
IBM based product management system
Product management system for Europe
Document management system for military
Marketing sites for European countries
Common toolbar for European countries
Backend services, components and APIs
Common data services for Europe
Common syndication services for Europe
Core data services for US and Canada
Vertical ecommerce module
Each one is
at least
6 months
projects

B2B ecommerce site for the mould industry
IBM based product management system
Product management system for Europe
Document management system for military
Marketing sites for European countries
Common toolbar for European countries
Backend services, components and APIs
Common data services for Europe
Common syndication services for Europe
Core data services for US and Canada
Vertical ecommerce module
6 of them
cancelled before go-live
closed after a while
will be closed soon
%55

are failing
Software projects
“50% of IT projects go into trash in Turkey”
Agile Turkey
mercer consulting
“When the real costs are added up, 80% of the
technology projects costs more than they return”

of reasons
to faila lotwe have

company
politics
some of them
are due to
we are unable to do anything here

developing
software in
unnatural way
but the reason of
all the others is

agenda
The Nature of Software
Naturalness of Software: Agility
Agile Software Development Practices

The nature
of software
and 9 main rules

The ultimate goal is
customer satisfaction
1
Customers have rights to get
software developed with the
features they need in a fast way
of course, you might not satisfy your
customer at this level. that’s fine.

In general the customers
do not know
what they really want
2

UNCERTAINITY
exists in every step of
development process
3

requirements
always change
4
Start Point
Target Point
2
1
3

Software development
is not just
5
Programming

Software should
always be
maintained
after go live
6

Software development is a
social activity
7

BIG-Up-front detailed
estimation & Design are
UNNECESSARY
8

ıncreases total real cost9 compromising quality

agility
concept emerges for helping developers
to let them develop in natural way

Agile means
Adapting to change
rapidly
and sending a feature or a ﬁx to market rapidly

agile means
evolving design and
development

Agile development is not only
about project planning
Project planning is just a part of agile software development

Agile software development
Agile planning and management
Software development practices
Customer satisfaction
Teamwork
Motivation
this is the topic we are interested in

working on the correct design
with newest and best technologies
in a short time
We aim to complete the projects by

However we always face with issues related with
humans

Getting feedback rapidly
Agile ve lean prenciples focus on the following:
Speeding up feecback loops

Let’s develop a project
by using
agile development
practices

See your developers not as resources, but talents (No headcount calculation)
Work with people who loves to share knowledge and experiences (Collaborative & Volunteer)
Educate people about agile practices and the philosophy behind (Up-Front Education)
Build your team with passionate and disciplined developers (Passionate Developer)
“Don’t pick the right technology, pick the one that’s cheapest to change” by chris matts
Before the start
Developer
Business Analyst
Tester
Product Owner

Developer
Make teams with cross functional people (Cross functional teams)
Sit close to your team mates (Sitting CLOSE)
Deﬁne the minimum set of features that you can get feedback (Minimum Viable Product)
Focus on features valuable to the customer (Prioritization)
Avoid doing big fat up-front design (Short Up-Front Design)
Document enough, don’t go deep into details (Agile Documentation)
Let’s start the project
Business Analyst
Tester

Keep your code in a version control system (Version Control System)
Program in pairs (Pair Programming)
Review others’ code (Code/Peer Review)
Develop each feature in a new branch (Code Branching)
Follow clean code principles (Clean Code Principles)
Do code katas to improve your technical capabilities (Code Kata)
Use idiomatic and architectural patterns in addition to design patterns (Idiomatic Patterns)
Develop from customers’ point of view by BDD (Behaviour Driven Development)
Develop from developers’ point of view by TDD (Test Driven Development)
Software development and social coding
Version
Control
System
Developer
Business Analyst
Tester

Pull others’ commits and integrate with yours at least once a day (Continuous Integration)
Let the existing tests run automatically and get feedback about the failed ones (Continuous Build)
Detect untested areas in your code and improve the code coverage (Code Coverage)
Don’t afraid of deleting code, improve your design with the help of written tests (Refactoring)
Full feedback loop of continous integration should take at most 10 minutes (10 min build)
Continuous Integration
Messaging Services (emails, messages)
Version
Control
System
Continuous
Deployment
Developer
Business Analyst
Tester

Prepare a working copy of your software available in your CVS (SNAPSHOTs / daily builds)
Make the latest working copy of your software ready for deployment (Continuous delivery)
Continuous Delivery
Package Repository
Version
Control
System
Continuous
Deployment
Developer
Business Analyst
Tester

DEV TEST & QA STAGING PROD
Prepare an environment where developers can do experiments and test their code (DEV)
Have an environment where performance and load tests can be done (TEST/QUALITY ASSURANCE)
User acceptance tests should be done on an environment similar to production (STAGING/UAT/SIT)
Development Environments

Package Repository
Version
Control
System
Make releases frequently (SHORT RELEASES)
Deploy your applications with one click (Continuous DEPLOYMENT)
Shorten release and boot times of your software (Fast bootup)
Raise DevOps that knows software development and IT operations at the same time (DEVOPS)
Release Management & Deployments
DEV
TEST & QA
STAGING
PROD
Continuous
Deployment
Developer
Business Analyst
Tester

Clouds force you to follow the practices to some extent.
Software development on clouds
DevOpsDevOps DevOps DevOps
Version
Control
System
Developer
Business Analyst
Tester

You cannot talk about agility without eXtreme Programming practices.
And XP can only be achieved by pashioned programmers.“
”İsa Göksu
Agile Practice Lead

Photos used in the slidES
http://www.flickr.com/photos/emmanuelecontini/2558211856
http://www.flickr.com/photos/thecampbells/5103649471
http://www.flickr.com/photos/robbiemacphotos/7875854334
http://www.flickr.com/photos/w4nd3rl0st/7174403872
http://s590.photobucket.com/user/asmithj/media/CPC/girl_2_computer_arms_raised2.jpg.html
http://www.flickr.com/photos/usnavy/5488581781
http://www.flickr.com/photos/purplemattfish/3489639831
http://www.flickr.com/photos/thomashawk/7215052318
http://www.flickr.com/photos/nuwandalice/4764805046
http://www.flickr.com/photos/lauter-als-der-rest/6898114788
http://www.flickr.com/photos/31288116@N02/4008216690
http://www.flickr.com/photos/a2gemma/1448178195
http://www.flickr.com/photos/nuudls/3281779141

Lemİ orhan ergİn
lemiorhan@agilistanbul.com
@lemiorhan
@lemiorhan
agilistanbul.com
@lemiorhan
LINKEDINTWITTERSLIDESHAREBLOG
Principal Software Engineer @ Sony
Founder & Author @ agilistanbul.com
ﬂyingtomoon.com
The slides were presented on 13th of June, 2013 at
Agile Talks which is a set of seminars organized
by Agile Turkey few times in a year in Turkey
The content of this presentation is originally in Turkish.
The author translated into English by purpose.

GMO'less Software Development Practices

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