Aleatory should not be confused with either indeterminacy, or improvisation. They are&colon; indeterminism, chaos and order, aleatory principle and open form. Aleatory techniques exploiting randomness are also common. There has been much confusion of the terms aleatory and indeterminate/chance music. The technical processes of a game stand for experiments that generate aleatory events. For example, gambling, wagering, or betting typically use aleatory contracts. Radica has also experimented with Aleatory techniques. This is also known as aleatory probability. Additionally, another very common type of aleatory contract is an insurance policy.