Which options are key elements of the clean core concept in ABAP?

The clean core concept in ABAP emphasizes maintaining a clean, manageable, and stable core of the application while allowing for flexibility through extensions. Each of the elements mentioned is vital to achieving this goal.

The strict separation between extensions and the underlying application ensures that the core codebase remains untouched and stable, enabling easier upgrades and maintenance. By clearly delineating what constitutes the core versus extensions, developers can build additional functionalities without risking disruptions to the foundational system.

Usage of released APIs is crucial as it provides a standardized way to interact with the underlying application. Released APIs are stable interfaces that developers can rely upon, ensuring that the process of extending the application does not lead to unforeseen impacts on core functionality. This practice helps maintain compatibility even as the application evolves.

Elimination of modifications is another cornerstone of the clean core principle. By avoiding direct modifications to the standard application code, organizations can ensure that their system remains robust against updates and changes from the core vendor. This practice fosters a sustainable environment for future enhancements and upgrades.

Overall, the combination of these elements promotes a cleaner architecture that facilitates easier management and evolution of the application while keeping the core intact and reliable.