Strategic Domain-Driven Design: The missing link paving the way to your monorepo-based Angular architecture @NgVikings2019

[Example](https://github.com/manfredsteyer/ddd)

Transcript

1. @ManfredSteyer Strategic Domain-Driven Design: The missing link paving the way to your monorepo-based Angular architecture Manfred Steyer SOFTWAREarchitekt.at ManfredSteyer
2. @ManfredSteyer What do we need for a good architecture ? Experience
3. @ManfredSteyer Sharing Experience for Architectures BEST PRACTICES PATTERNS METHODOLOGY
4. @ManfredSteyer Domain Driven Design
5. @ManfredSteyer How can we improve our frontend architectures with ideas from DDD?
6. @ManfredSteyer How can we improve our frontend architectures with ideas from DDD?
7. @ManfredSteyer Contents 1) Strategic Design 101 2) Angular Monorepos 3) Nx Monorepos and DDD 4) DEMO
8. @ManfredSteyer About me… • Manfred Steyer SOFTWAREarchitekt.at • Angular Trainings and Consultancy • Google Developer Expert (GDE) • Trusted Collaborator in the Angular Team Page ▪ 8 Manfred Steyer Public: Frankfurt, Vienna, Munich, Düsseldorf, Stuttgart In-House: everywhere http://softwarearchitekt.at/workshops
9. @ManfredSteyer 1) Strategic Design in a nutshell
10. @ManfredSteyer Domain Driven Design Strategic Design Tactical Design Decomposing a System Design Patterns & Practices
11. @ManfredSteyer Domain Driven Design Strategic Design Tactical Design Decomposing a System Design Patterns & Practices
12. @ManfredSteyer This is what Strategic DDD prevents
13. @ManfredSteyer Example e-Procurement System
14. @ManfredSteyer Catalog Approval Specification Ordering Example Sub-Domains
15. @ManfredSteyer Catalog Approval Bounded Cotext Ubiquitous Language
16. @ManfredSteyer Catalog Approval Specification Ordering Context Map
17. @ManfredSteyer Approval Specification Context Map Catalog Catalog Shared Kernel
18. @ManfredSteyer Catalog Approval API
19. @ManfredSteyer Lots of additional approaches for cross-domain communication …
20. @ManfredSteyer 2) Monorepos
21. @ManfredSteyer Workspace
22. @ManfredSteyer Creating a Workspace npm install -g @angular/cli ng new workspace cd workspace ng generate app my-app ng generate lib my-lib ng serve --project my-app ng build --project my-app
23. @ManfredSteyer Tooling & Generator https://nrwl.io/nx
24. @ManfredSteyer Visualize Module Structure
25. @ManfredSteyer 3) Nx Monorepos and Strategic Design
26. @ManfredSteyer Catalog Ordering Shared Feature Feature Feature Feature Feature UI UI UI UI UI UI UI UI UI Domain Domain Domain Domain Domain Domain Util Util Util Util Util Util Enterprise Monorepo Patterns, Nrwl 2018: https://tinyurl.com/y2jjxld7 @ManfredSteyer Shared Kernel (if really needed) & other libs
27. @ManfredSteyer Catalog Ordering Shared Feature API Feature Feature Feature Feature UI UI UI UI UI UI UI UI UI Domain Domain Domain Domain Domain Domain Util Util Util Util Util Util @ManfredSteyer
28. @ManfredSteyer Application Domain Infrastructure Isolate your domain! Domain Domain Infrastructure e. g. data access Application Use case specific facades
29. @ManfredSteyer Finegrained Libraries • Unit of recompilation • Unit of retesting • Access restrictions • Prevent Cycles • Information Hiding • Future replacement for NgModules?
30. @ManfredSteyer 4) DEMO
31. @ManfredSteyer Summary Slicing into sub-domains Slicing into layers Non-strict layering Finegrained libraries Enforce restrictions
32. @ManfredSteyer
33. @ManfredSteyer Contact and Downloads [mail] manfred.steyer@SOFTWAREarchitekt.at [web] SOFTWAREarchitekt.at [twitter] ManfredSteyer d Slides & Examples Public: Frankfurt, Vienna, Munich, Düsseldorf, Stuttgart In-House: everywhere http://softwarearchitekt.at/workshops