What type of analysis helps identify the impact of changes in architecture?

Impact Analysis is the appropriate type of analysis that focuses specifically on identifying the consequences of changes within an architecture. This method systematically evaluates how alterations can affect existing components, processes, or systems, providing insights into potential risks, costs, and benefits that might arise from such changes.

In the context of TOGAF, Impact Analysis is essential for ensuring that any modifications within the architectural framework are addressed comprehensively. This keeps the architecture aligned with business goals and minimizes disruptions. By understanding the implications of changes, architects can make informed decisions that facilitate smoother transitions and maintain overall system integrity.

Cost-Benefit Analysis, while valuable, primarily assesses the economic justification for a project by comparing the costs associated with it to the anticipated benefits, rather than focusing on the ramifications of changes themselves. Risk Analysis is concerned with the identification and assessment of risks but does not exclusively cover the broader impacts of changes in architecture. Scenario Analysis, although useful for exploring possible future developments and their outcomes, does not specifically target the impact of a change on the existing architecture directly but rather examines various potential future states based on different assumptions.