Architecture decisions and their impact

Architectural decisions, whether made intentionally or incidental, can have a huge impact on your day to day work. They can make changes more difficult, slow things down or make it harder to onboard new people. While there are quite a few talks on architecture patterns you rarely see real life examples. Luckily, open source projects are great for this. You can see the history and both the changes and discussions around them. So, let's do just that.

Transcript

1. Architecture decisions and their impact
2. Architecture decisions and their impact Denis Brumann @dbrumann 3 Denis Brumann @dbrumann Solutions Architect Maintainer of Deptrac
3. Architecture decisions and their impact Denis Brumann @dbrumann 4
4. Architecture decisions and their impact Denis Brumann @dbrumann 4
5. Architecture decisions and their impact Denis Brumann @dbrumann 5 Code Project Structure Service Landscape Interactive Runtimes
6. Architecture decisions and their impact Denis Brumann @dbrumann 7
7. Architecture decisions and their impact Denis Brumann @dbrumann 8 Application Analyse Command Analyser
8. Architecture decisions and their impact Denis Brumann @dbrumann 9 Application Ana Com Service Container Service Service Service Service Service Service Service
9. Architecture decisions and their impact Denis Brumann @dbrumann 10 Analyse Command Ana Read arguments/options
10. Architecture decisions and their impact Denis Brumann @dbrumann 11 Analyser
11. Architecture decisions and their impact Denis Brumann @dbrumann 13 Application Analyse Command Analyser Service Container Service Service Service Service Service Service Service Read arguments/ options
12. Architecture decisions and their impact Denis Brumann @dbrumann 14 Application Analyse Command Analyser Service Container Service Service Service Service Service Service Service Read arguments/ options Service
13. Architecture decisions and their impact Denis Brumann @dbrumann 15 https://my-app.com/ MyApp DB MyApp https://foo.my-app.com/ https://bar.my-app.com/
14. Architecture decisions and their impact Denis Brumann @dbrumann 16 https://foo.my-app.com/ Bar DB MyApp Foo DB https://bar.my-app.com/
15. Architecture decisions and their impact Denis Brumann @dbrumann 17 https://foo.my-app.com/ Bar DB MyApp Foo DB https://bar.my-app.com/ Tenant-Aware Multi-Portal
16. Architecture decisions and their impact Denis Brumann @dbrumann 18 Possible Problems Runtime errors (invalid context, misconfigured services) Debugging is more difficult (which service/config was used?) Tighter coupling & more complexity !
17. Architecture decisions and their impact Denis Brumann @dbrumann 19
18. Architecture decisions and their impact Denis Brumann @dbrumann 20
19. Architecture decisions and their impact Denis Brumann @dbrumann 20
20. Architecture decisions and their impact Denis Brumann @dbrumann 21 Warning Signs Services creating other services (usage of new in code) Service Locator or factory-usage Config-objects (or arrays) being passed through "
21. Architecture decisions and their impact Denis Brumann @dbrumann 22
22. Architecture decisions and their impact Denis Brumann @dbrumann 23 Lesson Avoid creating/configuring services at runtime * consider pushing the runtime context into the infrastructure layer #
23. Architecture decisions and their impact Denis Brumann @dbrumann 24 Code Project Structure Service Landscape Interactive Runtimes Isolate Layers
24. Architecture decisions and their impact Denis Brumann @dbrumann 26 Persistence Layer Domain Layer Application Layer Presentation Layer
25. Architecture decisions and their impact Denis Brumann @dbrumann 28 Persistence Layer Domain Layer Application Layer Presentation Layer Request
26. Architecture decisions and their impact Denis Brumann @dbrumann 29 Persistence Layer Domain Layer Application Layer Presentation Layer Entity
27. Architecture decisions and their impact Denis Brumann @dbrumann 31 Persistence Layer Domain Layer Application Layer Presentation Layer Response
28. Architecture decisions and their impact Denis Brumann @dbrumann 32 What if Entity or API changes?
29. Architecture decisions and their impact Denis Brumann @dbrumann 33 Persistence Layer Domain Layer Application Layer Presentation Layer Request
30. Architecture decisions and their impact Denis Brumann @dbrumann 33 Persistence Layer Domain Layer Application Layer Presentation Layer DTO
31. Architecture decisions and their impact Denis Brumann @dbrumann 33 Persistence Layer Domain Layer Application Layer Presentation Layer Entity
32. Architecture decisions and their impact Denis Brumann @dbrumann 34 Persistence Layer Domain Layer Application Layer Presentation Layer DTO
33. Architecture decisions and their impact Denis Brumann @dbrumann 34 Persistence Layer Domain Layer Application Layer Presentation Layer Response
34. Architecture decisions and their impact Denis Brumann @dbrumann 35 Domain Model is tied to DTO
35. Architecture decisions and their impact Denis Brumann @dbrumann 36 Persistence Layer Domain Layer Application Layer Presentation Layer Entity Model Request / Response (Input / Output) DTO
36. Architecture decisions and their impact Denis Brumann @dbrumann 37 Possible Problems ! Mapping between objects can become annoying More code/duplication “Wrong” layers add complexity
37. Architecture decisions and their impact Denis Brumann @dbrumann 38 Possible Benefits $ Easier extraction of components Switching dependencies is easier Refactoring is more contained
38. Architecture decisions and their impact Denis Brumann @dbrumann 39
39. Architecture decisions and their impact Denis Brumann @dbrumann 40 Output Formatting (Dependency) Analysis Layer Resolving Dependency Resolving AST Parsing Input Collection
40. Architecture decisions and their impact Denis Brumann @dbrumann 41
41. Architecture decisions and their impact Denis Brumann @dbrumann 41
42. Architecture decisions and their impact Denis Brumann @dbrumann 41
43. Architecture decisions and their impact Denis Brumann @dbrumann 42 nikic/php-parser is only used here
44. Architecture decisions and their impact Denis Brumann @dbrumann 42 nikic/php-parser is only used here Deptrac’s own data structure
45. Architecture decisions and their impact Denis Brumann @dbrumann 43
46. Architecture decisions and their impact Denis Brumann @dbrumann 44
47. Architecture decisions and their impact Denis Brumann @dbrumann 45 No longer contains dependency-references
48. Architecture decisions and their impact Denis Brumann @dbrumann 46
49. Architecture decisions and their impact Denis Brumann @dbrumann 47
50. Architecture decisions and their impact Denis Brumann @dbrumann 48
51. Architecture decisions and their impact Denis Brumann @dbrumann 49
52. Architecture decisions and their impact Denis Brumann @dbrumann 50 Lesson Isolating layers (and their data!) helps contain changes and makes switching out parts easier #
53. Architecture decisions and their impact Denis Brumann @dbrumann 51
54. Architecture decisions and their impact Denis Brumann @dbrumann 52 Questions ❔
55. Architecture decisions and their impact Denis Brumann @dbrumann 53 Thank You Have a great conference