You Can't Be Agile If Your Testing Practices Suck...Uber, the world’slargest taxi company owns no...
Transcript of You Can't Be Agile If Your Testing Practices Suck...Uber, the world’slargest taxi company owns no...
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You Can't Be Agile If Your
Testing Practices Suck
Peter Gfader
@peitor
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About me
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Peter Gfader
The Agile Architect
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https://beyond-agility.com/books/https://www.meetup.com/
Software-Craftsmanship-Zurich/
Peter Gfader
The Agile Architect
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About You
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What do you do in software?
• Analyze
• Discover
• Design
• Code
• Test
• Architect
• Document
• Coach
• Manage
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You Can't Be Agile If Your
Testing Practices Suck
Peter Gfader
@peitor
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Is this what Agile
is about?
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„We have Squads now“Thanks Spotify for a new word for Team.
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#pain
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What is your current pain?From Senior Management
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What is your current pain? What I heard...• Lack of Innovation
• Operational issues
• Not working with My people
• No time for improving
• Too slow
• Late delivery
• Too little visibility
• Too many dependencies to manage
• Poor morale
• Too many issues in production
• Timelines not predictable
• Morale is low
• Problems discovered too late
• Hiring great people
• Competition
• Low Employee satisfaction
• People very busy certain time, certain time team is over or understaffed
• They have the wrong Mindset
• Quality is low
• Feedback is very low and late
• Lack of know how
• Too many regulations, ISO norms, laws, compliance rules
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Which pain isgone with
Agile?
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What Agile
is not
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Agile is not
"Doing what I say… Just faster"
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Agile is not
Cheaper
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So...
What is Agile then?
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What is Agile for you?
Elevator Pitch In Pairs
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...before some defitions...
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Some
Definitions
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"Company"
=
A system
That solves external problems
And makes more money than it spends.
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"Company"
=
A system
That solves external problems
And makes more money than it spends.
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Back to
Agile
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https://twitter.com/peitor/status/425718700290105344
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VUCA?
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VUCA = volatility
uncertainty
complexity
ambiguity
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VUCA = volatility
uncertainty
complexity
ambiguity
“I don’t know”
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Can you admit thatyou don’t know?
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You should!
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You should!
Or someone else will
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Uber, the world’s largest taxi company owns no vehicles.
Airbnb, the world’s largest accommodation provider owns no real estate.
Facebook, the world’s most popular media provider creates no content.
Instagram, the most valuable photo company, sells no cameras.
Netflix, the fastest growing television network, lays no cables.
Alibaba, the world’s most valuable retailer has no inventory.
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Agile ... Why?
Agile is about working smarter, rather than harder.
lt's about generating more value with less work. particularly more monetizable value with less work.
Steve Denning https://businessagility.institute
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More
Definitions
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"Operational Agility"How quick can we
deliver value (in the form or a Product/Feature)
to changing
demands from the
market?
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„Strategic Agility“How quick can an organisation
improve its competitive position
& create opportunities for growth.
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Customer focus
is invaluable.
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Our world changes...• Globalization
• Deregulation
• Knowledge work
• The Internet
• Greater competition
• Faster pace
• Digitization of everything
• The customer is the boss
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“We are seeing more change in the next 15 years than in the last 15 years.
The big question is always, do we car manufacturers learn to become tech companies more quickly than a tech company learns to be an automotive player?”
Peter Schwarzenbauer – Aug 2017BMW management boardhttps://www.nytimes.com/2017/02/08/business/germany-bmw-daimler-volkswagen-uber.html
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“We are seeing more change in the next 15 years than in the last 15 years.
The big question is always,
do we car manufacturers learn to become tech companies more quickly than a
tech company learns to be an automotive player?”
Peter Schwarzenbauer –
BMW management board
https://www.nytimes.com/2017/02/08/business/germany-bmw-daimler-volkswagen-uber.html
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Back to the
pain
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What is your current pain? What I heard...
Skills
• Lack of Innovation
• Operational issues
• No time for improving
• Too slow (Late delivery)
• Too many dependencies to manage
• Quality is low
• Lack of know how
People
• Poor morale
• Hiring great people
• People very busy certain time, certain time team is over or understaffed
• Mindset problem? Tools & Know How is there
Market/Competition
• Customer is gone
• Market share decreases
Self Awareness
• Too little visibility
• Problems discovered too late
• Lack of Innovation
• Feedback is very low and late
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From the #pain to
Major Challenges
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Major challenges
1. Vision to 1 week Outcomes
2. Good Engineering Skills
3. Continuous Improvement
4. Leadership
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What Worked
„Peter tell me what to do“
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#TODOStop Talking „Agile“
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„Scrum says“
„This is not Agile“
„Let‘s do this in an agile way“
„XP recommends …“
„In the SAFe book its written“
„This is not Lean enough“
„You must be co-located for XP“
„Let’s make this transparent by putting
it in wall”
“We are iterative and adaptive”
“Great showcase and demo”
„Customer“
„User“
„Risk“
„Market“
„Competition“
„Value“
„Product“
„Sponsor”
„Money”
#moreContent
Stop Start
https://beyond-agility.com/stop/
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„How do we
become
agile?“
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„How do we
become
agile?“
How can we
discover and
deliver Value
faster?
What is Value in our Organization? Product?
https://beyond-agility.com/stop/
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# TODO https://www.scrum.org/resources/evidence-based-management-guide
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Value Metrics #TODO
Evidence-Based Management Metrics
https://www.scrum.org/resources/evidence-based-management-guide
Metrics for Pirates AARRR
https://www.slideshare.net/dmc500hats/startup-metrics-for-pirates-
long-version
Googles HEART
https://www.dtelepathy.com/ux-metrics/
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Quality
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Quality
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Quality
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Quality
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Major challenges
1. Vision to 1 week Outcomes
2. Good Engineering Skills
3. Continuous Improvement
4. Leadership
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How to slow down
your project / product?
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Why do we write bad code?
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1. Hypothesis For Bad Code
Broken Window Theory
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http://blog.gfader.com/2011/10/broken-window-theory-in-real-world.html
Broken Window Theory
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2. Hypothesis For Bad Code
We write bad code,
because we read bad code
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Write crappy code?
You have never seen good code!
Santa Claus. Osterhase.
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Write crappy code?
You have never seen good code!
Read good code
Make code easier to read
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Easy code to read
Easy code to change
Easy to maintain
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Code Readings?• Code Reviews
• Peer work reviews
• Pair Programming
• Mob Programming
• Pre Commit
• Gerrit
• Pull Requests
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Code Readings?• Peer Reviews
• Whole Team Code Reviews
• Pair Programming
• Mob Programming
• Pre Commit
• Gerrit
• Pull Requests
• Open source (Read? Write?)
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#TODO Tips Code Reviews
• Code, !Person
• Constructively propose changes Questions!
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Code Reviews
• Code, !Person
• Constructively propose changes Questions!
• Review not only codeo Tests
o Build process
o ..
Grow as a team
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Pair Programming
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https://twitter.com/mpetrinidev/status/1042805522603417600
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#TODO
Strong Style Pair Programming
"For an idea to go from your head into the computer
it MUST go through someone else's hands"
http://llewellynfalco.blogspot.com/2014/06/llewellyns-strong-style-pairing.html
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Mob Programming
• Whole team
• Work on same thing
• Same time
• Same space
• Same computerhttp://mobprogramming.org/
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#TODO: Review Code
• In your team
• With 1 peer
• Open source
• Brown bags – Lunch time discussion
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#TODO: Code to read in the Team
https://github.com/nsubstitute/NSubstitute
https://github.com/techtalk/SpecFlow
https://github.com/sf105/goos-code
https://github.com/machine/machine.specifications
https://github.com/BjRo/xunitbddextensions
https://github.com/dtchepak/DaveSquared.StringsTheThing
Good code is like a joke!
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Good code is like a joke!
No need for explanation
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3. Hypothesis For Bad Code
“Nobody can write
good code in 1 sit-in.”
There is no “Right the 1st time”
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3. Hypothesis For Bad Code
“Nobody can write good code in 1 sit-in”
-> Refactoring
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#TODO Refactoring
https://github.com/NotMyself/GildedRose
https://github.com/jcbozonier/Refactoring-Katas
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The little issue with Refactoring?
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Unclear what works and what doesn’t
We are never done.
Without Tests
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Change and
refactor without
fear.
With Tests
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Refactoring+
Tests=
?
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Refactoring
+
Tests
=
No Business Value
Waste?? Overhead??
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Car Breaks
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Refactoring+
Tests=
?
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Test-Driven Development (TDD)
Writing tests prior to writing the production code.
Its that easy ?
REFACTOR GREEN
RED
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http://gfader.tumblr.com/post/153724638564/tdd-as-i-think-of-it-november-2016-where-do
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Outside world and code do not match
Implemented requirements unclear
Code not understandable
TDD Outside In
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Test Driven Development
TDD = Testing technique?
TDD = Design technique?
TDD = Learning technique?
TDD = Thinking technique?
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Habit 2/7
Begin with the end in mind
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#Todo Practice Globally
November 16th (or 15th), 2019
Global Day of Code Retreat
https://www.coderetreat.org
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#Todo Find your peers
https://www.meetup.com/topics/software-craftsmanship/
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All fine... But we are here
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Proper
Root Cause
Analysis
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Proper Root Cause Analysis
1. Gather Data during Sprint
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Proper Root Cause Analysis
2. Cluster and Analyse in Retrospective
5Whys
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Proper Root Cause Analysis
3. Delegate to Team
Dive deeeeeep
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Proper Root Cause Analysis
4. How to prevent this in future?
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Proper Root Cause Analysis
5. Maximize learning
From individuals
to team (s)
to organizational learning
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5 Steps - Proper Root Cause Analysis
1. Gather Data
2. Retrospective
3. Delegate to Team -> Deep Dive
4. Prevent this in the future
5. Maximize learning
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Quality
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Quality
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How to sell to Managers?
Investment
Well crafted & tested code
is expensive.
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Investment
Well crafted & tested code is expensive.
Fixing bad code is very, very, very, very expensive.
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Agile/Lean/Scrum/Kanban/DevOps don’t matter.
What matters is to get better at
understanding your future customer
and providing value faster.
https://beyond-agility.com
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Thank You!https://twitter.com/peitor
https://www.linkedin.com/in/petergfader/
https://beyond-agility.comPeter Gfader
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ReferencesYour Todo List
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• Steve Denning 3 Laws of Business Agilityhttps://www.infoq.com/presentations/3-laws-business-agility
• Steve Denning – Why Agilehttps://businessagility.institute
• Future Leadership Training
• Haier HBR – The end of bureaucracyhttps://hbr.org/2018/11/the-end-of-bureaucracy
• Book: The Leader's Guide to Radical Managementhttp://www.stevedenning.com/Books/radical-management.aspx
References
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References
• Pragmatics of Agile Development
http://www.agiledeveloper.com/presentations/pragmatics_of_agile_development.pdf
• Kanban VS Scrum
http://www.infoq.com/minibooks/kanban-scrum-minibook
• Agile Software Development
http://www.agiledeveloper.com/presentations/AgileSoftwareDevelopment.zip
• A Thinking Tool called Agile
https://sites.google.com/site/leanagileandscrum/lean-agile-scrum-conference-
2010/presentations-las-2010/00_Kniberg_Keynote.pdf?attredirects=0&d=1
• The Four Elements of Simple Design
http://www.jbrains.ca/permalink/the-four-elements-of-simple-design
• http://agilemanifesto.org/
• http://manifesto.softwarecraftsmanship.org/
![Page 129: You Can't Be Agile If Your Testing Practices Suck...Uber, the world’slargest taxi company owns no vehicles. Airbnb, the world’slargest accommodation provider owns no real estate.](https://reader035.fdocuments.in/reader035/viewer/2022070715/5ed7ae2786e8a75e3f298cd9/html5/thumbnails/129.jpg)
Picture References• https://gratisography.com/
• https://businessagility.institute
• https://twitter.com/peitor
• https://craigsmith.id.au/2015/12/03/yow-2015-40-agile-methods-in-40-minutes/