Domain-Driven Design (DDD)

Domain-Driven Design (DDD) is an approach to software development that emphasizes collaboration between technical and domain experts to model complex domains effectively. The core concept is to create a shared understanding of the domain through ubiquitous language and to structure the software around the domain model. DDD helps in aligning the software design with business needs and making the system more maintainable and adaptable to changes.

For further explanation, visit: Domain-Driven Design

Mapping DDD Concepts to Tracepaper Concepts

DDD Concept	Description	Tracepaper Concept	Description
Entities	Objects with a distinct identity	Aggregate Document	Clustered entities managed as a single unit
Value Objects	Objects defined by their attributes	Not explicitly mapped	N/A
Aggregates	Cluster of entities and value objects	Aggregates, Behavior Flows	Clustered entities with business rules
Repositories	Mechanisms for accessing aggregates	Abstracted by technical framework	Handled through event sourcing
Services	Operations that don't belong to entities	Automations	Logic and operations
Factories	Methods for creating aggregates	Abstracted by technical framework	Handled through event sourcing
Domain Events	Events indicating something has happened	Events	Significant occurrences that trigger changes
Commands	Instructions to perform an action	Commands	Requests for state changes or operations
Bounded Contexts	Logical boundaries within the domain	Subdomains	Defines scope and boundaries of the model

This table shows how the core concepts of Domain-Driven Design are integrated into the Tracepaper modeling tool, facilitating a clear and structured approach to system design.