Away day

Stop amazing.Start working.

l iver

the resources

the mission

ﬁnd . -type f ( -name *.css -o -name *.js -o -name *.java -o -name *.jsp -o -name *.html )-print0 | xargs -0 cat | wc -l

ﬁnd . -type f ( -name *.css -o -name *.js -o -name *.java -o -name *.jsp -o -name *.html )-print0 | xargs -0 cat | wc -l 558982 lines of code

grep -R ‘<bean’ . | wc -l

grep -R ‘<bean’ . | wc -l 684 spring beans

grep -R ‘class’ . | wc -l

grep -R ‘class’ . | wc -l 3096 java classes

grep -R ‘@Test’ . | wc -l

grep -R ‘@Test’ . | wc -l 1774 junit4 tests

grep -R ‘public void test’ . | wc -l

grep -R ‘public void test’ . | wc -l 1603 junit3 tests

our nice tech stack

integration40 queues 157 ﬁelds 20 schemas 20 cores ~ 30 ofﬂine jobs 5 webservices

104integration points!

~le tests

~le tests• 2777 junit tests

~le tests• 2777 junit tests• 360 functional tests

~le tests• 2777 junit tests• 360 functional tests• ruby 1.8.6 (no bundler!)

~le tests• 2777 junit tests• 360 functional tests• ruby 1.8.6 (no bundler!)• windows xp

~le tests• 2777 junit tests• 360 functional tests• ruby 1.8.6 (no bundler!)• windows xp• monkeypatches for IE/windows

~le tests• 2777 junit tests• 360 functional tests• ruby 1.8.6 (no bundler!)• windows xp• monkeypatches for IE/windows• 4 hours build

4 teams35 devs

6 engineers

6 managers

pigeons!

many of them

ﬁrst storyproduct feed import

IHateYouForeverImpl• 2272 lines• 32 dependencies• getItemStatus (3 setters)

IHateYouServiceImplTest 78 lines of test setup

loadAllProducts.xml 26 pages

ProductDTO.java• 86 attributes• + getters / + setters• equals() => 400 lines

let’s throw it all awayand start from scratch!

ok!let’s AMAZE this codebase

pague o aluguel!

massive cleanup• intensive refactoring• pair programming• rant! whining! crying!

6 weeks later...

zoom++

fuuuu• silly refactoring (speculative)• bugs in prod

todos ‘chora’

todos ‘chora’• little trust on the offshore team

todos ‘chora’• little trust on the offshore team• the project almost gets cancelled

todos ‘chora’• little trust on the offshore team• the project almost gets cancelled• IM leaves

todos ‘chora’• little trust on the offshore team• the project almost gets cancelled• IM leaves• tech lead leaves

we were alone :’(

new approach

foca no trabalho!

purism must stop

right software >software right

is it worth refactoring?• does it block another story?• does it block delivery?

speculation“this is going to impact on story #125 of the next iteration” facts x speculation software is inherently fuzzy

legacy code is working code http://favim.com/image/467371/

sweep it under the carpetfaçadesparallel class hierarchy

tolerate heresy

reduce the feedback cycleis there anyone using it?

featurelevel MVPs

avoid theformal sign-off

fantasyarchitecture

what do they wanna hear?

is it possible not to test?

divide and conquer

technical debt factories

in the end...

the client

is this success aconsequence of the initial effort?

simmas não

here’s my number nettofarah@gmail.com @nettofarah vgomes@thoughtworks.com @vvgomesso call me, maybe

thank you!

Away day

by Ivayr Farah Netto on Oct 22, 2012

Accessibility

Categories

Upload Details

Usage Rights

1 Embed 1

Statistics

Away day Presentation Transcript