Your customers are demanding more every day, and pushing you to deliver features faster than ever before. But do your systems let you move with the speed needed for achieving competitive advantage? This talk introduces concepts in system design that are driven by customers, and allow businesses to pivot faster, and with a higher level of confidence.

1. BUILDING SYSTEMS THAT PIVOT
Andy Marks
amarks@thoughtworks.com
@andee_marks
Zhamak Dehghani
zdehghan@thoughtworks.com
@zhamakd

10. CONTINUOUS DELIVERY AS AN ENABLER
• automated build
• automated deployment
• automated environment provisioning - cloud & virtualisation
• automated testing

11. CONTINUOUS DELIVERY AS AN ENABLER
• automated build
• automated deployment
• automated environment provisioning - cloud & virtualisation
• automated testing
SPEEDOFDELIVERY
C D M A T U R I T Y L E V E L
Threshold without
changing architecture

12. ARCHITECTURE

13. A THOUGHT EXPERIMENT
Build Test Integration Acceptance Production
System.out.println
(“Hello World!”);
How long will this take?

15. ELEMENTS OF ARCHITECTURE
Integration
Off-the-shelf
Bespoke
Off-the-shelf
Bespoke
Integration
Integration
Integration

16. ELEMENTS OF ARCHITECTURE
Integration
Off-the-shelf
Bespoke
Off-the-shelf
Bespoke
Integration
Integration
Integration
BESPOKE DEVELOPMENT

17. MONOLITHIC ARCHITECTURES

21. LAYERED/TIERED ARCHITECTURE
User Interface/Channels
Business Logic/
Frameworks/Middleware
Database/Systems
of Record?

25. FINE-GRAINED ARCHITECTURE

26. BOUNDARIES

31. BOUNDARIES
A business capability
Placing
Order
Tracking
Order
Short-term experimentation
Drone
Based
Delivery
Technology & security
requirements
Debit
Cards
Credit
Card
Payments
CAN I RELEASE THESE INDEPENDENTLY?

32. A THOUGHT EXPERIMENT
Integration
Off-the-shelf
MICROSERVICES
• Independent
• Business capability
• Published interface
• Small
• 100s, not 1000s

33. BENEFITS
User Interface/Channels
Business Logic/
Frameworks/Middleware
Database/Systems
of Record

34. AUTONOMY
AUTONOMY ➡ SPEED

35. ABSORBS TECHNOLOGY FASTER
.NET
Clojure
Java
[SQL Database]
[Graph Database]
[Document Storage]

36. COMPOSE-ABILITY

41. AUTOMATE!
AUTOMATE!
AUTOMATE!

42. AUTOMATION
Build Test Integration Acceptance Production

43. AUTOMATION
Build Test Integration Acceptance Production

46. MONITORING
STATUS
• Up?
• Down?
STATUS
• All up?
• All down?
• Mostly up?
• Up apart from 1?
• All of the important bits are up?
• …

49. AMAZON PRODUCT PAGE
DOESN’T APPEAR… DO WE CARE?

50. A THOUGHT EXPERIMENT
Integration
Off-the-shelf
Bespoke
OFF-THE-SHELF SOFTWARE

54. PRODUCT SELECTION CRITERIA
• Can you write automated tests against it?
• Can it be automatically deployed?
• Can its environments be automatically provisioned?
• Can updates be automatically applied?
• Does it fit the way you work?
• Is it built using open standards?
• Does it run on open platforms?
• Is data stored in open formats?
• Is it open source?

55. COTS
TRADE
SUBMISSION
CONFIRMATION
RECEIPT
Hosted
COTS
trade
instructions
trade
confirmations

56. A THOUGHT EXPERIMENT
Integration
Off-the-shelf
Bespoke
COMPONENT INTEGRATION

57. INTEGRATION
Smart & Complex Integration System

59. Simple & Dumb
Integration
Open standards
(e.g., HTTP)

60. Simple & Dumb
Infrastructure SUMMARY

61. RECOMMENDATIONS
• Bespoke development ➡ microservices
– Automate everything!
• Off-the-shelf software ➡ utility systems
– Select for automation and open standards
• Component integration
– Dumb, open and “of the web”
OTS
Bespoke
Bespoke
OTS

62. CONCLUSION

63. THANK
YOU
Zhamak Dehghani
zdehghan@thoughtworks.com @zhamakd
Andy Marks
amarks@thoughtworks.com @andee_marks