# Next steps
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+ Familiarize yourself further with domain-driven design concepts by reading the links collected in the [Resources](resources.md) section.
+ If you’re implementing a new project, use the [project structure template](best-practices.md#mapping) provided in this guide and implement a few features.
+ If you’re in the process of implementing an existing project, identify code that can be split between read-only and write-only operations. Abstract read-only code into query services, and place write-only code into command handlers. 
+ When your base project structure is in place, write unit tests, establish continuous integration (CI) with test automation, and follow test-driven development (TDD) practices.