This document discusses two companies' journeys to continuous delivery of software. The first story describes automating a loan processing platform that now processes close to $4 million in loans with a small team. The second story automated a mobile device management solution for healthcare. The document then outlines the continuous delivery process used, including practices like continuous integration, deployment pipelines and emphasizing delivering business value. Challenges discussed include balancing speed and quality while improving processes through retrospectives.

1. Continuous Delivery
from the Trenches
By @leenasn

2. Agenda
● Tale of two customers
● Overview of the Process
● Our learnings

3. Story 1

4. http://www.multunus.com/portfolio/micro-loan-processing-platform/
Originator & Underwriter

5. http://www.multunus.com/portfolio/micro-loan-processing-platform/
Loan Processing

6. http://www.multunus.com/portfolio/micro-loan-processing-platform/
Payment Processing

7. Manual + Some Automation

8. http://www.multunus.com/portfolio/micro-loan-processing-platform/

9. First release of the
product
- Close to 4 million
worth of loans till
date
- An average of 4 loan
officers

10. http://www.multunus.com/portfolio/micro-loan-processing-platform/
Passive monitoring and alerting

11. http://www.multunus.com/portfolio/micro-loan-processing-platform/
Originator - Work in Progress

12. Story 2

13. http://www.multunus.com/portfolio/end-end-mobile-device-management-solution-health-media-enterprise/

14. http://www.multunus.com/portfolio/end-end-mobile-device-management-solution-health-media-enterprise/

15. http://www.multunus.com/portfolio/end-end-mobile-device-management-solution-health-media-enterprise/

16. http://www.multunus.com/portfolio/end-end-mobile-device-management-solution-health-media-enterprise/

17. Stats
Released to 1 clinic Automated the Device
Setup
Extended to Linux
Media Players

18. How?

19. Team
● 1-3 pair of programmers
● One Product Manager
● One Business Analysts/Tester
● Works closely with the business team

20. ● Every commit gets deployed to staging
● Production updates multiple times a week
● Gradual rollout for major features
● Weekly production pushes for Android Apps
● Slowly moving to a Continuous Deployment for Webapps

21. Continuous Delivery
“Continuous Delivery is a software development discipline where
you build software in such a way that the software can be
released to production at any time.”
http://martinfowler.com/bliki/ContinuousDelivery.html

22. Focus on Delivering Business
Value

23. Team understanding the users

24. Software development is a
human activity

25. Two pillars
● Respect for people
● Continuous Improvement

26. Technical Practices

27. Continuous Integration
“Continuous integration (CI) is the practice, in software
engineering, of merging all developer working copies to a shared
mainline several times a day.”

28. Mainline Development

29. Feature Toggles

30. Test Driven Development

31. Automated Deployments

32. Deployment Pipeline

33. Non-Technical Practices
Collaboration, Communication

34. Pairing

35. Timeboxing instead of
Estimating
http://www.multunus.com/blog/2013/04/estimating-to-timeboxing-our-journey/

36. User in User stories

37. Retrospectives and Cause
Effect Analysis

38. Quick overview of Tools

39. CI/CD

40. Continuous Integration a
Dollar A Day
Courtesy: James Shore

41. Monitoring

42. Deployment
https://github.com/multunus/chef-repo

43. Static Analysis

44. Communication

45. Challenges

46. Speed vs Quality

47. Resiliency
http://www.multunus.com/blog/2014/08/production-outages-part-2/

48. The “managers”

49. Absence Blindness

50. How long?
http://www.multunus.com/blog/2013/04/estimating-to-timeboxing-our-journey/

51. Summary

52. Done = Released

53. Work in small batches

55. http://cnmnewz.com/wp-content/uploads/2014/06/Golden-Gate-Bridge-with-Net-AP.jpg

56. Quick overview

57. @leenasn / leena.sn@multunus.com
Office hours http://bit.ly/leena-officehours
Playbook http://bit.ly/our-playbook

58. References