According to the CRISC Review Manual1, risk nomenclature and taxonomy is the set of terms and definitions that are used to describe and classify risks and their attributes. Risk nomenclature and taxonomy is the most important consideration when aligning IT risk management with the enterprise risk management (ERM) framework, as it helps to ensure a common and consistent understanding and communication of risks across the organization. Risk nomenclature and taxonomy also helps to integrate and harmonize the IT risk management processes and activities with the ERM framework, and to facilitatethe aggregation and reporting of risks at different levels of the organization. References = CRISC Review Manual1, page 197.