IRB Approach This dimension categorises information reported under the internal ratings based approach to credit risk, as determined in accordance with relevant prudential standards. Advanced The information reported is in relation to exposures determined under the advanced internal ratings-based (AIRB) approach to credit risk in accordance with relevant prudential standards. Foundation The information reported is in relation to exposures determined under the foundation internal ratings-based (FIRB) approach to credit risk in accordance with relevant prudential standards. Supervisory Slotting The information reported is in relation to exposures determined using the supervisory slotting approach under the internal ratings-based (AIRB) approach to credit risk in accordance with relevant prudential standards.