The chapter on Design Principles outlines core guidelines that influence software architecture, such as High Cohesion, Separation of Concerns, and the Single Responsibility Principle. These principles guide the creation of clean, maintainable code and systems that are easy to scale and modify. The section also delves into design patterns like the Open/Closed Principle and Interface Segregation Principle, which promote extensibility and reduce complexity in system design.
There are several designs available to chose from, even more might not be discovered yet. The approach should be iterative and/or incremental and follow a Domain-Driven-Design. Some principles to consider are the following ones:
| Devide et impera | Blackbox / Whitebox | Hierarchical Sophisticatio | Principle of Segregation |
| Separation of Concerns | High Cohesion | Single Responsibility Principle | Open/Closed Principle |
| Utilization of Interfaces | Separatization of Interfaces | Dependency Inversion | Liskovs Principle of Substitution |