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Economics of
Continuous Delivery
Adrian Perreau de Pinninck Bas, Ph.D.
@eidrien aperreau@gmail.com
https://homevestorsfranchise.com/blog/news/2014/10/people-invest-real-estate-mutual-funds/
Opening
http://www.qentelli.com/continuous-delivery/
http://natgeo.se/natur/naturkatastrofer/galleri-orkanen-irene
https://wallpapercave.com/w/zDuwdi3
http://www.qentelli.com/continuous-delivery/
https://devops.stackexchange.com/questions/488/how-does-continuous-integration-relate-to-continuous-delivery-deployment
https://www.suse.com/es-es/solutions/devops/
http://cs.astronomy.com/asy/m/sunandmoon/449739.aspx
By Grégoire Détrez, original by Jez Humble -https://commons.wikimedia.org/w/index.php?curid=43977816
Version
Control
Atomic
Commits
Mocking Trunk-Based
Development
Dependency
Injection
Branch by
Abstraction
Automated
Testing
Automated
Infrastructure
Hot
Deployment
Blue-Green
Deployment
Canary
Releases
A/B Testing
With Continuous Delivery
Without
http://cbus52.blogspot.com.es/2014/01/snow-rollers.html
With Continuous Delivery
Cost per phase
Machine costs
for phase
Engineer costs
for phase
With Continuous Delivery
Engineer costs per unit of time
Machine costs per unit of time
error rate at phase
time to execute phase
time to fix phase
What is the error rate?
error rate at phase
error rate at commit level
time to execute phase
commits per unit of time
Without
Engineer costs per unit of time
Time to integrate a new version
Time to release on production
Comparison
?
Time to integrate a new version
Time to release on production
Time of release cycle in non-continuous
Time of continuous delivery cycle
error rate at phase
time to fix phase
Comparison
if
?
Time to integrate a new version
Time to release on production
Time to fix phase
error rate at commit level
commits per unit of time
Time of release cycle in non-continuous
Time of continuous delivery cycle
Comparison
if
?
?
Time to integrate a new version
Time to release on production
Time to fix phase
error rate at phase level
commits per unit of time
Time of release cycle in non-continuous
Time of continuous delivery cycle
Transition to B
Bugs
Resiliency
time to
fix bug
# pending
commits
age of
bugs
# engineers
time
between
releases
Time to fix phase Commits per unit of time
Time to execute phase Error rate at commit level
https://www.quora.com/What-is-the-big-O-notation-and-how-do-I-calculate-it-Will-you-give-me-examples-of-code-and-their-corresponding-representations-in-O-notation
Bugs
Zero Bugs?
Transition to C
Cost of Delay
Examples
With Continuous Delivery
Time to fix phase
Time to execute phase
error rate at phase
Money won per unit of time for a feature in production
Without
Time to integrate a new version
Time to release on production
Time of release cycle in non-continuous
Money won per unit of time for a feature in production
Comparison
Time to fix phase
Time to execute phase
error rate at phase
Time to integrate a new version
Time to release on production
Time of release cycle in non-continuous
Transition to Closing
Monitor your Inventory
Closing
http://www.clipartpanda.com/clipart_images/cartoon-maths-symbols-30289403
https://www.smartjobboard.com/blog/monetize-your-job-board-website/
https://engineering.linkedin.com/blog/2016/11/linkedin_s-oregon-data-center-goes-live
= 1€/minute
100K€/year
100
=
= 3 months
= 2 weeks
= 2 weeks
= 1 hour
= 8 hours
Calculate savings in a year
M = 0€/minute
Cost per release without CD = 33440€
Cost per feature with CD = 61€
Savings / year = 82K€
Calculate savings in a year
Calculate savings in a year
https://wallpapercave.com/w/zDuwdi3
Simulation Parameters
error rate at phase
error rate at commit level
time to execute phase
commits per unit of time
Economics of Continuous Delivery

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Economics of Continuous Delivery