1. 1. DDD & Microservices fromDDD & Microservices from the Front Lines: Buildingthe Front Lines: Building Evolvable Software withEvolvable Software with Events, Aggregates andEvents, Aggregates and FriendsFriends
2. 2. MicroserviceMicroservice ArchitectureArchitecture ExplainedExplained
3. 3. David Dawson CEO Simplicity Itself London Microservices User Group Founder & Lead david.dawson@simplicityitself.com @davidthecoder
4. 4. What is Architecture?
5. 5. Architecture vs Design
6. 6. Limitless Options For Design
7. 7. Only a few Architectures
8. 8. What is Architecture?
9. 9. Architecture Is Philosophy
10. 10. What is your Philosophy?
11. 11. Microservices Philosophy?
12. 12. The path toThe path to MicroservicesMicroservices
13. 13. The path toThe path to MicroservicesMicroservices
14. 14. ThisThis SucksSucks
15. 15. What are Microservices?
16. 16. Isolation
17. 17. Aspiration
18. 18. What will make Microservices Awesome?
19. 19. Mid 2014 .
20. 20. Mid 2014 .
21. 21. Mid 2014 .
22. 22. The brave new world of DDD Microservices
23. 23. What do we care about?
24. 24. Events
25. 25. Events The One True Ubiquitous Language
26. 26. Events The Stream is the Only Truth that Matters
27. 27. Messaging Is Cool
28. 28. Event Sourced Microservices
29. 29. Event Sourced Microservices Upgrades!
30. 30. Event Sourced Microservices Replay!
31. 31. Bounded Contexts
32. 32. Bounded Contexts 1 Service!
33. 33. Bounded Contexts Many Services!
34. 34. Entity
35. 35. Entity Many Representations
36. 36. Hand Waving Consultant
37. 37. Real World ExampleTM
38. 38. Audient.lyTM
39. 39. Audient.ly Social analysis Anomoly Detection Introspect an Enterprise
40. 40. Audient.ly
41. 41. Groups 'Source' Pipeline Event Store WordCloud Map View Gender Detection Sentiment Analysis Etc... Users Event Store Gateway Users
42. 42. Microservice microservice Microservice Event Store Microservice Microservice Microservicemicroservice Microservice Microservice Event Store Gateway Microservice
43. 43. Event Store Event Store Gateway
44. 44. Aggregate Root Event Store Event Store Gateway
45. 45. Source Aggregate Root Event Store ServiceService Service Event Store Gateway
46. 46. View Source Aggregate Root Event Store View View ServiceService Service Event Store Gateway
47. 47. View Source Aggregate Root Event Store View View ServiceService Service Aggregate Root Event Store Gateway Aggregate Root
48. 48. View Source Aggregate Root Event Store View View ServiceService Service Aggregate Root Event Store Gateway Aggregate Root
49. 49. Gateway?
50. 50. View Aggregate Root Event Store View View ServiceService Service Aggregate Root Event Store Gateway Aggregate Root
51. 51. Gateway
52. 52. Gateway
53. 53. Gateway Adapt world views
54. 54. Gateway Adapt world views Events Messaging HTTP REST
55. 55. What else?
56. 56. View Aggregate Root Event Store View View ServiceService Service Aggregate Root Event Store Gateway Aggregate Root
57. 57. Aggregate Root ServiceService Service
58. 58. 'Chatter' Sentiment Analysis Gender Detection Etc...
59. 59. Microservice MicroserviceMicroservice MIcroservice
60. 60. What else?
61. 61. View Aggregate Roots Event Store View View ServiceService Service Aggregate Root Event Store Gateway Aggregate Root
62. 62. View View View Gateway
63. 63. View View View GatewayEventually Consistent
64. 64. View View View GatewayEventually Consistent No Database!
65. 65. View View View GatewayEventually Consistent No Database! Totally Isolated
66. 66. Event Sourcing!
67. 67. View View View Gateway
68. 68. Product Gateway
69. 69. Product Gateway
70. 70. Router Gateway Product Product Product
71. 71. Router Gateway Product Product Product Event Store
72. 72. Upgrade?
73. 73. Router Gateway Product Product Product Event Store
74. 74. Router Gateway Product Product Product Event Store Product
75. 75. Router Gateway Product Product Product Event Store Product REPLAY
76. 76. Router Gateway Product Product Product Event Store Product REPLAY
77. 77. Scaling?
78. 78. Event Streams
79. 79. Router Gateway Product Product Product
80. 80. Router Gateway Product
81. 81. Router Gateway Product
82. 82. Router Gateway Product 1 .. 200
83. 83. Welcome to the New World!
84. 84. Looks like the Old World!
85. 85. Microservices Architecture?
86. 86. Microservices Philosophy
87. 87. Aspirational
88. 88. Microservices User eXperience Sucks
89. 89. We're going to change the way you think
90. 90. david.dawson@simplicityitself.com http://www.simplicityitself.com Want to know More?
91. 91. David Dawson @davidthecoder Questions?
92. 92. David Dawson @davidthecoder Thanks!