The Clean Architecture Dependency Rule

This chapter is from the book

Clean Architecture: A Craftsman's Guide to Software Structure and Design

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This chapter is from the book

This chapter is from the book 

Clean Architecture: A Craftsman's Guide to Software Structure and Design

Learn More Buy

Conclusion

Conforming to these simple rules is not difficult, and it will save you a lot of headaches going forward. By separating the software into layers and conforming to the Dependency Rule, you will create a system that is intrinsically testable, with all the benefits that implies. When any of the external parts of the system become obsolete, such as the database, or the web framework, you can replace those obsolete elements with a minimum of fuss.