Which layer in the application architecture contains all kernel data like objects and bookings?

The Kernel Layer is crucial in the application's architecture as it is responsible for managing and representing all fundamental data structures, including objects and bookings. This layer serves as the core of the application, where the essential business rules and data operations are defined and executed. It facilitates interactions between higher layers and the underlying data storage mechanisms.

In the context of Avaloq Script, the Kernel Layer handles the software’s internal data representations, ensuring that all transactions and data manipulations are efficient and consistent. This makes it the main point of reference for any business logic that involves data-driven decisions or interactions.

The other layers, such as the Order Memory Layer and the Order Persistence Layer, serve different functions. The Order Memory Layer typically deals with the temporary storage and handling of data during an active transaction, while the Order Persistence Layer focuses on how data is stored and retrieved from long-term storage solutions. The Application Layer interacts with users and other systems but does not manage the core data structures directly. Therefore, the Kernel Layer is the correct choice for containing all kernel data like objects and bookings.