Domain-driven design (DDD) is an approach to software development for complex systems. It is based on the following principles:
Domain: The domain is the core of the problem that the software is trying to solve. It is the area of expertise of the users and stakeholders.
Model: The model is a representation of the domain. It is a conceptual model that captures the knowledge and expertise of the users and stakeholders.
Software: The software is a tool that can be used to manipulate the model. It is not the domain and should not be focused on the implementation details of the model.
Design: The design is the process of creating the model and translating it into a software solution.
The main goal of DDD is to create a model that accurately reflects the domain and can be used to solve problems in the domain. To do this, DDD uses a number of techniques, including domain modeling, domain-specific languages, and strategic design.
Domain modeling is the process of creating a model of the domain. The model is a conceptual representation of the domain that captures the knowledge and expertise of the users and stakeholders. It is not a software model and should not be focused on the implementation details of the software.
Domain modeling is used to understand the domain and to identify the key concepts and relationships in the domain. The model is used as a basis for designing the software solution.
Domain-specific languages (DSLs) are languages that are specific to a particular domain. They are used to express the concepts and relationships in the domain model in a form that can be understood by computers.
DSLs are used to generate code from the domain model. The code can be used to implement the software solution.
Strategic design is the process of choosing a particular software solution that will meet the needs of the users and stakeholders. It is based on the domain model and the domain-specific languages.
Strategic design is used to identify the best way to implement the domain model in software. It takes into account the trade-offs between different approaches and chooses the approach that will be the most effective for the particular problem.
Domain-driven design is a powerful approach to software development for complex systems. It is based on the principle that the domain is the core of the problem that the software is trying to solve.
DDD uses a number of techniques, including domain modeling, domain-specific languages, and strategic design, to create a model of the domain that can be used to solve problems in the domain.