Software engineering practices of an
agile developer how do you build Lemİ Orhan ERGİN Principal Software Engineer @ Sony @lemiorhanagilistanbul.com software @lemiorhan ?

Lemİ Orhan Ergİn Principal Software
Engineer at Sony has worked in Tüsside, BYM, GittiGidiyor/eBay and Sony as lead developer, technical leader, technical coordinator and scrum master got CSM certificate from Jim Coplien year as Scrum Master sprints in 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 CSM, PSM1 0.5M total number of views of his presentations

but it sucks! software development
is cool because we hardly find successful software

missing deadlines extra costs never
used features unknown risks unmotivated employees bugs, failures, errors legacy systems incompetent developers micro managing managers huge technical debts

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”

only very few can make
it by following non-traditional ways

how?

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

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

Today or later 9 You
have to pay the technical debt

requirements design Implementation verification maIntenance
requirements design Implementation development process of our dreams one step starts after another completes Maintenance

THE REALITY IN SOFTWARE DEVELOPMENT
requirements requirements requirements requirements DESIGN DESIGN DESIGN DESIGN DESIGN IMPLEMENTATION IMPLEMENTATION IMPLEMENTATION IMPLEMENTATION VERIFICATION VERIFICATION VERIFICATION VERIFICATION VERIFICATION VERIFICATION MAINTENANCE MAINTENANCE MAINTENANCE MAINTENANCE MAINTENANCE IGN

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

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 engineering practices Customer satisfaction Teamwork Motivation this is the topic we are interested in

Let’s develop a project by
using agile development practices

message to companies See your
developers not as resources, but talents “ ”

Define your valuesand let everyone
know Educate everyone up-front Define your team’s norms and values the manifesto

Build your teamone team per
product, not per project Cross functional teams swat team sit together Cultivate collaboration culture

Start the projectand follow these
basic practices Minimum viable product Emergent simple design short up-front design Agile Documenting

Developmentthat will never be the
same again use git code branching code / Peer review Pair Programming Clean code principles collective ownership build as if it’s open source refactoring

testing strategyyou can never succeed
without it TDD ATDD BDD Testing legacy systems A/B Testing chaos monkey MULTI LAYER TESTING design?

never release an unreviewEd code
to production! NEVER!

reproduce the bugs with tests
before fixing it or the fixed bugs may rise again!

get feedbackas soon as possible,
as much as possible code coverage continuous ıntegration continuous build code analysis 10 min build evergreen build status

continuous deliverybeing always ready to
go-live snapshots daily Builds continuous delivery central package repository

release & deployit should be
smooth and error-prune short frequent releases continuous deployment fast bootup devops enterprise environments cloud compatible

and adabt to change in
any circumstances Building robust, stable, flexible, extensible, high quality software with teams having highly-competent, motivated people in a fast and efficient way

No methodology is as effective
as being passionate and disciplined“ ”AltuĞ AlTINTAŞ Lean-Kanban Consultant

extreme programming http://www.extremeprogramming.org/ Continuous Integration
http://www.martinfowler.com/articles/continuousIntegration.html

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Lemİ orhan ergİn lemiorhan@agilistanbul.com @lemiorhan
@lemiorhan agilistanbul.com @lemiorhan LINKEDINTWITTERSLIDESHAREBLOG Principal Software Engineer @ Sony Founder & Author @ agilistanbul.com flyingtomoon.com