Which level of the Architecture Landscape contains the most detail?

The correct answer is Capability Architectures, as this level provides the most granular detail within the Architecture Landscape. Capability Architectures focus on the specific capabilities an organization needs to fulfill its business objectives. They encompass detailed descriptions of the individual capabilities, including the processes, resources, and technologies that support those capabilities, as well as the relationships and dependencies between them. This level allows for a comprehensive understanding of how each capability contributes to the overall architecture and facilitates the organization's strategic goals.

In contrast, the other levels such as Segment Architectures, Strategic Architectures, and High-Level Architectures provide broader perspectives. Segment Architectures detail specific business segments but do not cover the detailed workings of each capability. Strategic Architectures align with the overall vision and future direction of the organization but remain at a higher, less detailed level. High-Level Architectures provide a generic overview of the system architecture and frameworks used, focusing on the overall structure rather than the nuanced details of specific capabilities. Thus, Capability Architectures stand out as the most detailed level in the Architecture Landscape.