For the purposes of this Auditing Standard, the following terms have the meanings attributed below:

1. Performance materiality means the amount or amounts set by the auditor at less than materiality for the financial report as a whole to reduce aggregation risk to an appropriately low level. If applicable, performance materiality also refers to the amount or amounts set by the auditor at less than the materiality level or levels for particular classes of transactions, account balances or disclosures.
2. Aggregation risk means the probability that the aggregate of uncorrected and undetected misstatements exceeds materiality for the financial report as a whole.