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

@ManfredSteyer Strategic Domain-Driven Design: The missing link paving the way
to your monorepo-based Angular architecture Manfred Steyer SOFTWAREarchitekt.at ManfredSteyer

@ManfredSteyer What do we need for a good architecture ?
Experience

@ManfredSteyer Sharing Experience for Architectures BEST PRACTICES PATTERNS METHODOLOGY

@ManfredSteyer Domain Driven Design

@ManfredSteyer How can we improve our frontend architectures with ideas
from DDD?

@ManfredSteyer Contents 1) Strategic Design 101 2) Angular Monorepos 3)
Nx Monorepos and DDD 4) DEMO

@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

@ManfredSteyer 1) Strategic Design in a nutshell

@ManfredSteyer Domain Driven Design Strategic Design Tactical Design Decomposing a
System Design Patterns & Practices

@ManfredSteyer This is what Strategic DDD prevents

@ManfredSteyer Example e-Procurement System

@ManfredSteyer Catalog Approval Specification Ordering Example Sub-Domains

@ManfredSteyer Catalog Approval Bounded Cotext Ubiquitous Language

@ManfredSteyer Catalog Approval Specification Ordering Context Map

@ManfredSteyer Approval Specification Context Map Catalog Catalog Shared Kernel

@ManfredSteyer Catalog Approval API

@ManfredSteyer Lots of additional approaches for cross-domain communication …

@ManfredSteyer 2) Monorepos

@ManfredSteyer Workspace

@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

@ManfredSteyer Tooling & Generator https://nrwl.io/nx

@ManfredSteyer Visualize Module Structure

@ManfredSteyer 3) Nx Monorepos and Strategic Design

@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

@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

@ManfredSteyer Application Domain Infrastructure Isolate your domain! Domain Domain Infrastructure
e. g. data access Application Use case specific facades

@ManfredSteyer Finegrained Libraries • Unit of recompilation • Unit of
retesting • Access restrictions • Prevent Cycles • Information Hiding • Future replacement for NgModules?

@ManfredSteyer 4) DEMO

@ManfredSteyer Summary Slicing into sub-domains Slicing into layers Non-strict layering
Finegrained libraries Enforce restrictions

@ManfredSteyer

@ManfredSteyer Contact and Downloads [mail] [email protected] [web] SOFTWAREarchitekt.at [twitter] ManfredSteyer
d Slides & Examples Public: Frankfurt, Vienna, Munich, Düsseldorf, Stuttgart In-House: everywhere http://softwarearchitekt.at/workshops

Strategic Domain-Driven Design: The missing lin...

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

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@ManfredSteyer Strategic Domain-Driven Design: The missing link paving the way

@ManfredSteyer What do we need for a good architecture ?

@ManfredSteyer Sharing Experience for Architectures BEST PRACTICES PATTERNS METHODOLOGY

@ManfredSteyer Domain Driven Design

@ManfredSteyer How can we improve our frontend architectures with ideas

@ManfredSteyer How can we improve our frontend architectures with ideas

@ManfredSteyer Contents 1) Strategic Design 101 2) Angular Monorepos 3)

@ManfredSteyer About me… • Manfred Steyer SOFTWAREarchitekt.at • Angular Trainings

@ManfredSteyer 1) Strategic Design in a nutshell

@ManfredSteyer Domain Driven Design Strategic Design Tactical Design Decomposing a

@ManfredSteyer Domain Driven Design Strategic Design Tactical Design Decomposing a

@ManfredSteyer This is what Strategic DDD prevents

@ManfredSteyer Example e-Procurement System

@ManfredSteyer Catalog Approval Specification Ordering Example Sub-Domains

@ManfredSteyer Catalog Approval Bounded Cotext Ubiquitous Language

@ManfredSteyer Catalog Approval Specification Ordering Context Map

@ManfredSteyer Approval Specification Context Map Catalog Catalog Shared Kernel

@ManfredSteyer Catalog Approval API

@ManfredSteyer Lots of additional approaches for cross-domain communication …

@ManfredSteyer 2) Monorepos

@ManfredSteyer Workspace

@ManfredSteyer Creating a Workspace npm install -g @angular/cli ng new

@ManfredSteyer Tooling & Generator https://nrwl.io/nx

@ManfredSteyer Visualize Module Structure

@ManfredSteyer 3) Nx Monorepos and Strategic Design

@ManfredSteyer Catalog Ordering Shared Feature Feature Feature Feature Feature UI

@ManfredSteyer Catalog Ordering Shared Feature API Feature Feature Feature Feature

@ManfredSteyer Application Domain Infrastructure Isolate your domain! Domain Domain Infrastructure

@ManfredSteyer Finegrained Libraries • Unit of recompilation • Unit of

@ManfredSteyer 4) DEMO

@ManfredSteyer Summary Slicing into sub-domains Slicing into layers Non-strict layering

@ManfredSteyer

@ManfredSteyer Contact and Downloads [mail] [email protected] [web] SOFTWAREarchitekt.at [twitter] ManfredSteyer