Building Systems That Can Pivot | Zhamak Dehghani, Principal Consultant, Thoughtworks | Andy Maks, Technical Principal, Thoughtworks

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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.

Technologie Business

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

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

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

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

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

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

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?

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

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

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

AUTOMATION
Build Test Integration Acceptance Production

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

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

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

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?

COTS
TRADE
SUBMISSION
CONFIRMATION
RECEIPT
Hosted
COTS
trade
instructions
trade
conﬁrmations

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

INTEGRATION
Smart & Complex Integration System

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

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

THANK
YOU

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

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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?

14.

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

18.

19.

20.

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

22.

23.

24.

25. FINE-GRAINED ARCHITECTURE

26. BOUNDARIES

27.

28.

29.

30.

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

37.

38.

39.

40.

41. AUTOMATE! AUTOMATE! AUTOMATE!

42. AUTOMATION Build Test Integration Acceptance Production

43. AUTOMATION Build Test Integration Acceptance Production

44.

45.

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

47.

48.

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

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

51.

52.

53.

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

58.

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

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