Which of the following statements does not describe the phases of the ADM?

The statement that each phase is mandatory does not accurately describe the nature of the Architecture Development Method (ADM) phases. While the ADM provides a structured approach to developing an architecture, the application of each phase may vary depending on the specific needs and context of the organization. Not every engagement will require the execution of all phases as prescribed; some may be skipped or revisited based on situational requirements or outcomes.

On the other hand, the cyclic nature of the ADM emphasizes the ongoing iterations between phases, allowing for continuous improvement and refinement of the architecture in response to changing business needs. The iterative aspect recognizes that architecture development is not a linear process but instead involves revisiting earlier phases to refine and adjust the architecture as necessary. Additionally, the notion that each phase refines the scope aligns with the understanding that as you advance through the phases, you further clarify and enhance the architectural requirements and objectives.