When used Modularity and Domain-Driven Design (DDD) together, they can help to create systems that are easier to maintain, more reliable, and more adaptable to change.
Modularity
Modularity is an architectural characteristic that refers to the system being divided into smaller, independent components. These components can be developed, tested, deployed, and maintained independently, improving the efficiency and scalability of the system.
Modularity is closely related to other architectural characteristics, including:
- Testability: Modularity improves the testability of the system by allowing components to be tested individually. This helps to reduce the time and cost of testing, as well as improve the quality of the system.
- Configurability: Modularity improves the configurability of the system by allowing components to be configured independently. This helps the system to meet the different requirements of users in a flexible way.
- Flexibility: Modularity improves the flexibility of the system by allowing components to be changed or extended easily. This helps the system to adapt to changes in the environment or the needs of users.
- Agility: Modularity improves the agility of the system by allowing components to be developed and deployed quickly. This helps the system to meet changing requirements in a timely manner.
- Maintainability: Modularity improves the maintainability of the system by making the system easier to understand and repair. This helps to reduce the time and cost of maintenance, as well as improve the reliability of the system.
DDD
DDD is a software design approach that focuses on understanding and modeling business domains. DDD uses concepts such as entities, constraints, and services to create accurate and flexible software models.
DDD can be combined with modularity to create systems with high maintainability. By dividing the system into smaller, independent components, developers can easily understand and repair DDD models.
How to Combine Modularity with DDD
To combine modularity with DDD, developers can use the following principles:
- Split entities, constraints, and services into separate components. This helps to make DDD models easier to understand and manage.
- Use interfaces to connect components. This helps to make components reusable and flexible.
- Use common data structures and algorithms for similar components. This helps to reduce duplication and improve maintainability.
Conclusion
Modularity and DDD are two important techniques that can be combined to create systems with high maintainability. By dividing the system into smaller, independent components, developers can easily understand and repair DDD models.
Reference links
- Testability = Modularity
- Accelerate Agility, Flexibility and Efficiency with Modular Design
- My experience of using modular monolith and DDD architectures
- Domain-Driven Design for a Modular Monolith: Bridging the Gap Between Microservices and Monoliths
Thank you for reading this far.