Where is the business scenarios technique expected to be most used in the ADM cycle?

The business scenarios technique is primarily utilized in Phase A: Architecture Vision of the ADM cycle. This phase is crucial because it focuses on establishing the high-level vision and understanding the business goals and drivers that shape the architecture.

In this context, business scenarios serve as a valuable tool for visualizing how various stakeholders interact with the system and understanding the specific needs and challenges of the organization. By developing and analyzing these scenarios, architects can better communicate the benefits and potential impacts of the architectural vision to stakeholders. This process helps in aligning the architecture with business objectives and ensuring that the envisioned solution addresses real-world issues faced by the organization.

Using business scenarios in Phase A helps to create a foundational narrative that guides subsequent phases of the ADM cycle, including requirements gathering and architecture development, as it ensures that all efforts remain coherent with the established vision.

The other phases mentioned, while important, focus on different aspects of the architecture development. For instance, the Preliminary Phase sets the context and organizes the architecture capability but does not specifically address business scenarios. Phase F: Migration Planning and Phase H: Architecture Change Management deal with implementation and ongoing management of the architecture, respectively, rather than establishing the initial vision through business scenarios.