Speech of Alexey Vasiliev, Software Engineer at Railsware, at Ruby Meditation #25 Kyiv 08.12.2018 Next conference - http://www.rubymeditation.com/ In this talk, Alexey will tell about the project in which was necessary to implement A/B testing and what came out of it in result Announcements and conference materials https://www.fb.me/RubyMeditation News https://twitter.com/RubyMeditation Photos https://www.instagram.com/RubyMeditation The stream of Ruby conferences (not just ours) https://t.me/RubyMeditation

1. Road to A/B testing
Brought to you by Oleksii Vasyliev
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2. Oleksii Vasyliev
Web and Mobile Developer (Ruby, Java, JavaScript, Objective-C, C/C++,
Golang, Elixir/Erlang), DevOps
Open-Source libs: PGTune, SQL Joins Visualizer, RWbox, Go-Kinesis, ElixirV8,
WebP-ffi, Zopfli-ffi, MongodbLogger, SMTRails, SHTRails, ...
Open-Source books: Setting up and scaling of PostgreSQL (Russian),
Cooking Infrastructure by Chef
Leading RWpod podcast about Ruby and JavaScript
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3. What is A/B testing?
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5. First reaction
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6. Rails solutions
Split
Vanity
Field Test
A/Bingo (dead)
Bandit (dead)
Absurdity (dead)
SevenMinuteAbs (dead)
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7. Split
Variants
ab_test(:user_variations, 'new', 'old', 'strange')
ab_test(:homepage_design, {'Old' => 18}, {'New' => 2})
Conversion
ab_finished(:user_variations)7

8. Split Web interface
gem 'split', require: 'split/dashboard'
mount Split::Dashboard, at: 'split'
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10. Split Extensions
Split::Export - Easily export A/B test data out of Split.
Split::Analytics - Push test data to Google Analytics.
Split::Mongoid - Store experiment data in mongoid (still uses redis).
Split::Cacheable - Automatically create cache buckets per test.
Split::Counters - Add counters per experiment and alternative.
Split::Cli - A CLI to trigger Split A/B tests.
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11. Demo for client
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12. Small changes from client
Support SPA applications (React, Vue.js, Marionette.js)
Cover only some percentage of visitors to target an experiment
I need determines when the experiment is shown: geo data, browser/mobile
device, third-party cookies, query parameter, etc
Running simple experiments (text/image variations, etc) without
development and deployment
Support Multivariate and Multi-Armed Bandit testing
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13. Multivariate tests (MVT)
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14. Reaction
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15. Ploblems
I need better admin system for experiments (editor, settings, etc)
I need collect info about customers (geo, device, etc) and do not forget
about GDPR/Data Processing Addendum/etc
It will create load on system
Your customers not need this feature
You as developer not need this code
It is only need for marketing/business analytic team
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16. What about PaaS?
Optimizely
ABTasty
VWO
Omniconvert
Adobe Target
etc
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17. PaaS pricing
Plans start at a minimum of $36,000 a year, for 200,000 visitors or more.
https://www.quora.com/How-much-is-optimizely
AB Tasty’s package starts at $1,000 per month
https://reviews.financesonline.com/p/ab-tasty/#pricing
Enterprise Pricing starts from $1,899/month
https://reviews.financesonline.com/p/omniconvert/#pricing
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18. Me
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20. ga('require', 'GTM-234234');
Google Optimize Integration
ga('create', 'UA-234234-1', 'auto');
ga('send', 'pageview');
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21. Google Optimize Integration
<style>.async-hide { opacity: 0 !important} </style>
<script>(function(a,s,y,n,c,h,i,d,e){s.className+=' '+y;h.start=1*new Date;
h.end=i=function(){s.className=s.className.replace(RegExp(' ?'+y),'')};
(a[n]=a[n]||[]).hide=h;setTimeout(function(){i();h.end=null},c);h.timeout=c;
})(window,document.documentElement,'async-hide','dataLayer',4000,
{'GTM-234234':true});</script>
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27. if (value === '2') {
'experiment_id_A'
Google Optimize JS API
function implementExperimentA(value) {
$( document ).ready(function() {
$('#my_element').text('Hello from variant 2');
})
}
}
gtag('event', 'optimize.callback', {
name: ,
callback: implementExperimentA
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28. A/B test results
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32. MVT setup
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35. It is Free (with some limits)
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36. Conclusion
If you need PaaS for A/B testing - try Google Optimize
Free version limits: 5 experiments, 10 personalizations, 16 MVT
combinations. You can update to Optimize 360 if needed
Ability to do experiments without development
Works on top of a Google Analytics
Integration with Google Tag Manager provide additional flexibility in settings
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37. <Thank You!> Questions?
Contact information
web: leopard.in.ua
github: le0pard
twitter: @leopard_me
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