Slides on software architecture covering: #Traits #cleanArchitecture # MVVM #VIPER

1. SOFTWARE
ARCHITECTURE

2. ● Software architecture overview
● Popular architecture patterns
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AGENDA

3. ● Architecture is structuring the code into components and
making these components to interact with each other.
● Architecture is about structuring the intent of your
system.
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What is an architecture ?

4. ● Satisfy the multitude of stakeholders
● Separation of concerns
● Testable
● Ease of use
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Traits of an architecture ?

5. Satisfy multitude of stakeholders

6. Separation of Concerns

7. Teastable

8. Ease of use

9. Layers of an architecture

10. ● MVC
● MVVM
● Clean Architecture(VIPER)
● And many more
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Popular iOS Architecture Patterns

11. Apple - MVC

12. It contains core application information. It
includes data and business logic.
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Model

13. Display information to user and
detect user interaction.
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View

14. It interpret and format model information
for the view and it interprets user interaction
from the view for the model.
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Controller

15. Reality - MVC
Distribution Testable Ease of use

16. MVVM

17. It consists of all the presentation logic.
It is UIKit independent.
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ViewModel

18. MVVM
Distribution Testable Ease of use

19. Clean Architecture

20. Features - Dependency rule

21. Features - Dependency rule

22. Features - Dependency rule

23. Features - Abstraction Principle

24. Features - Communication between layers

25. Features - Communication between layers

26. Separation of concerns

27. Stakeholders are Satisfied

28. Testable

29. VIPER

30. Contains the UI related(UIKit independent)
presentation logic
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Presenter

31. Performs Business logic
Contains business logic related to data(Entities) or networking,like creating new
instances of entities or fetching them from the server.For those purposes you’ll use
some Services and Managers which are not considered as a part of VIPER module
but rather an external dependency
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Interactor

32. Plain data object e.g Model
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Entity

33. It handles navigation from one view to another
view in the app. It is also suitable for navigating
between different modules.
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Router

34. VIPER
Distribution Testable Ease of use

35. ● Verbosity
● Onboarding time for new developers
● Method Proxying
● App launching time
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Negatives of Viper

36. Architecture

37. No Silver Bullet

38. Refrences
https://blog.cleancoder.com/uncle-bob/2012/08/13/the-clean-architecture.html.
https://usermanual.wiki/Pdf/Clean20Architecture20A20Craftsmans20Guide20to20Software20Structure20and20Design.105464971
1.pdf
https://www.investigatii.md/uploads/resurse/Clean_Code.pdf
https://www.youtube.com/watch?v=asLUTiJJqdE
Example of clean Architecture+ RxSwift : https://github.com/sergdort/CleanArchitectureRxSwift