AWS framework that classifies generative AI workloads into 5 categories (from consuming a third-party SaaS app to training your own model from scratch) to identify the security and governance responsibilities specific to each level.
In AIF-C01 (Domain 5, Governance) it's used to reason about how much security responsibility falls on the customer depending on the model's level of customization (similar in spirit to the shared responsibility model, but applied to generative AI).
Generative AI Security Scoping Matrix is a concept that can show up on the exam. Check the full guide to see it in context.