What is iteration in the context of ADM?

In the context of the Architecture Development Method (ADM) within TOGAF, iteration refers to the process of revisiting earlier phases to refine and update the architecture as needed. This iterative approach is critical because it acknowledges that architecture is not a one-time activity but rather a dynamic, evolving process that requires continuous assessment and improvement.

When organizations implement an architectural design, they often discover new insights or face challenges that require adjustments to their initial plans. Through iteration, teams can revisit specific phases, such as the architecture vision or business architecture phases, allowing them to incorporate feedback, lessons learned, and changing requirements into the ongoing development of the architecture. This flexibility ensures that the architecture remains relevant and aligned with the organization's goals.

Additionally, iteration supports stakeholder engagement by allowing stakeholders to review and provide input on developments at various stages, ultimately leading to a more cohesive and effective architectural outcome. This aspect of iterative refinement is a fundamental characteristic of effective enterprise architecture practices, aligning with the nature of business needs that evolve over time.