Descriptive architecture
The descriptive architecture as the name suggests describes the architecture. This is based on the target architecture and the baseline architecture. Within this package you often see an elaboration of the various dimensions of the organization based on subpackages to structure the descriptive architecture according to domain, layers and other organization-specific divisions. In this book a division based on a layer division for the organization

Objects enterprise architecture
It is considered a good practice to separate the elements from the diagrams in a large enterprise architecture. It is possible to separate the objects into the different subpackages of the enterprise architecture. It has been decided to do this in the root package of the enterprise architecture. In this example, a division has been made for subpackages per ArchiMate layer and/or element type. Various other layouts are possible. Determine here the classification that works well in the context of your own organization. Sorting the elements by element type in a comprehensive collection also works well for some organizations.

Prescriptive architecture
The framework-setting architecture is of great importance for steering the change in an organization to transform from the baseline architecture to the target architecture. Setting frameworks is often developed on the basis of architectural principles or nowadays also called binding architecture agreements. You can also find the description of the viewpoints because they can also be considered as setting the framework.