Which phase of the ADM establishes a set of Principles?

The Preliminary Phase is dedicated to preparing the organization for enterprise architecture work, which includes establishing the architecture principles that will guide all subsequent architecture development within the ADM. These principles are fundamental to the architecture vision and design choices made in later phases.

Phase A, Architecture Vision, establishes the architecture vision and scope, but relies on principles defined in the Preliminary Phase.

Phase D, Technology Architecture, develops the technology architecture, guided by principles already established.

Phase G, Implementation Governance, focuses on overseeing the implementation of the architecture, not defining principles.

Phase H, Architecture Change Management, manages changes to the architecture after deployment, not initial principle establishment.