When using the ADM to establish an Architecture Capability, which phase would define the infrastructure requirements to support the practice?

The Technology Architecture phase is the correct choice for defining the infrastructure requirements necessary to support the architecture practice within the context of the ADM (Architecture Development Method). This phase focuses specifically on the hardware and software infrastructure needed to implement the necessary systems, networks, and services that underpin the applications and data processes.

The Technology Architecture encompasses considerations such as the physical technologies that must be used, the platforms required, and the integration of various components. By establishing a clear understanding of these infrastructure requirements, organizations can ensure that their architecture is aligned with the necessary technological capabilities to successfully deliver the business and application objectives defined earlier in the ADM.

In contrast, while the other architecture domains, such as Application, Business, and Data Architecture, contribute critical components to the overall architecture framework, they do not specifically address the underlying infrastructure needs. Application Architecture focuses on the application systems and their relationships, Business Architecture aligns with business strategy and stakeholder needs, and Data Architecture defines data models and management—none of which directly establish the technological foundations required for implementation.