In this chapter, we reviewed seven structural design patterns that focus on how objects and classes are combined to form a system. The two structural design pattern categories were identified as object design patterns and class design patterns. The structural object design patterns are used to describe how to create objects with new functionality. Structural class design patterns utilize inheritance to create interfaces and combine multiple classes to form a larger structure. Examples of both approaches are provided in this chapter using multiple design pattern implementations.
In the next chapter, we will shift our focus to architectural design patterns. The chapter starts with an overview of architectural design patterns and covers the application, layered, and microservice design patterns.
