Domain Driven Design Starter Modelling Process

4 Phases

• Align & Understand
• Strategic Architecture
• Strategy & Org Design
• Tactical Architecture

8 Steps

1. Understand: Align our focus with the organisation’s business model, the needs of its users, and its short, medium, and long-term goals.

• Understand the business perspective using The Business Model Canvas
  • Business Model Canvas – Download the Official Template
• User Story Mapping for understanding the user vantage point.
  • user_story_mapping.pdf

2. Discover: Discover the domain visually and collaboratively.

• Start with Event Storming

3. Decompose: Decompose the domain into sub-domains - loosely-coupled parts of the domain.

• carve up your event storm into sub-domains and Context Maps.
• The Boundext Context is a linguistic boundary around the meaning of a (domain) model
• In an ideal world, we want to align Subdomains and Bounded Contexts
• https://www.eventstorming.com/

4. Strategize: Map out your sub-domains to identify core domains: the parts of the domain which have the greatest potential for business differentiation or strategic significance.

• Start with Core Domain Charts

5. Connect: Connect the sub-domains into a loosely-coupled architecture that fulfill business use-cases

• Start with Domain Message Flow Modelling

6. Organise: Align teams with context boundaries

• Start with Context Maps

7. Define: Define the roles and responsibilities of each bounded context.

• Start with Bounded Context Canvas or the C4 Model System Context Diagram.

8. Code: Code the Domain Model

• Start with Aggregate Design Canvas

From ddd-crew/ddd-starter-modelling-process: If you’re new to DDD and not sure where to start, this process will guide you step-by-step