In DDEX messages, message senders can use three allowed value sets to describe how Releases can be (or have been) exploited. They are:

The ReleaseType categorises the Release from the point of view of the Release Creator. For example, a Release Creator may create a Release for use as a ring-back tone on a mobile phone. This is distinct from the UseType which describes what a consumer is allowed to do with a Release. For example, a Release created as a “normal” digital album, might still be used as a ring tone.

The third dimension, the CommercialModel type describes how consumers pay for the Release, whether the transactions are based on subscriptions or whether the consumer pays directly for each Release received.