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[RELENG 2014] Quantifying the Business Value of Release Engineering

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Presented by Dan Tehranian at 2nd International Workshop on Release Engineering 2014 @ Google HQ on 4/11/14

Workshop Website: http://releng.polymtl.ca/RELENG2014/html/index.html

Published in: Software, Business, Technology
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[RELENG 2014] Quantifying the Business Value of Release Engineering

  1. 1. Quantifying the 
 Business Value of
 Release Engineering Dan Tehranian
 tehranian@gmail.com
  2. 2. The Language Gap Continuous Delivery Agile Continuous Integration Vagrant Jenkins Puppet Chef Tech ROI Net Present Value OpEx CapEx EBITDA Amortization IRR Business
  3. 3. Principal Engineer & “Economist in Residence” Dan Tehranian
  4. 4. “Release Engineering as a Force Multiplier”
 -John O’Duinn, circa 2013
  5. 5. Release Engineering
 As a Force Multiplier Tools++! Process++! Culture++ Release Engineers Dev Team
  6. 6. But How to Quantify?
  7. 7. The Business Value of RelEng Very Quantifiable Quantifiable
 w/More Assumptions
  8. 8. Example Improving Build Time 5 hrs -> 20 mins

  9. 9. What’s Quantifiable? • “Fully-Loaded” Cost ($$) / Engineer / Year • Number of Engineers on Team • Time Spent Doing a Specific Task • Number of Times that Task is Repeated • Overhead of Context-Switching to a New Task While Waiting
  10. 10. Obligatory Reference
  11. 11. Best
 Estimate Conservative Estimate # of Devs 100 100 Cost / Dev / Yr $225,000 $200,000 # Builds / Wk / Dev 10 5 Build Time Improvement 4 hr 4 hr % Loss for Context Switch 20% 10% —— Total Dev Time $ / Yr $4,500,000 $1,000,000
  12. 12. The Business Value of RelEng Very Quantifiable Quantifiable
 w/More Assumptions
  13. 13. What’s the Value of
 Time to Market? vs
  14. 14. Quantifying the 
 Business Value of
 Release Engineering Dan Tehranian tehranian@gmail.com

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