This document discusses Service Oriented Architecture (SOA) and related concepts like APIs and microservices. It provides an overview of SOA and notes its focus on services, abstraction, interoperability, and flexibility. APIs are discussed as being focused on REST and JSON for external use cases, while microservices emphasize isolation, anti-fragility, and scalability but at the cost of infrastructure complexity. The document poses exercises around designing a banking system using SOA modeling and architecture.

1. SOA
Diego Pacheco

2. @diego_pacheco
❏ Cat's Father
❏ Principal Software Architect
❏ Agile Coach
❏ SOA/Microservices Expert
❏ DevOps Practitioner
❏ Speaker
❏ Author
diegopacheco
http://diego-pacheco.blogspot.com.br/
About me...
https://diegopacheco.github.io/

3. Two Kinds of Architects...

4. https://www.youtube.com/watch?v=uWYBDviv5Ts

12. Time goes by...
❏ SOA
❏ APIS
❏ Microservices
❏ Serverless

15. SOA

16. SOA by Amazon

19. Contract First
https://editor.swagger.io/

22. SOA
+ Services
+ Abstraction
+ Interoperability
+ Shared Services
+ Evolutionary Ref.
+ Flexibility
- ESB (integration)
- Soap / XML
- Enterprise
- Internal

23. APIs

24. API
+ REST + JSON
+ Life Cycles
+ External
+ Biz Models
+ B2B
- Don't FIT well
- for internal Enterprise
- Often Text(gRPC)
- Issues Beyond RPC
- Batching
- Streaming
- Aggregation(GraphQL)

25. Microservices

31. Microservices
+ Isolation
+ Anti-Fragility
+ UX-Degradation
+ Scalability
- Infra Cost
- Complexity
- Expensive
- Expensive for Small
companies

32. Exercises
You are building a bank system with: accounts, savings, stocks, transfers
and brazil gov integration. Let's do some SOA Modeling and Architecture?
1. Design The Services
2. Design The Contracts
3. Now we need change(change data type) accounts but only for Mobile,
web does not need this change - how can we tackle it?
4. How you will Govern your SOA solution?
5. What are the PROS/CONS in your solution?

33. SOA
Diego Pacheco