Specifications 
The suggestion for this Data Model came in an email from Rudolf Meerkotter on May 5th. 2009. 

A. What are the Things of Interest ? 
A.1 Licences
A.2 Licence Types eg Broadcast (Radio Station)
A.3 Music Creators
A.4 Music Providers
A.5 Music Provider Types eg Radio Station
A.6 Music Users
A.7 Performing Rights Society (PRS)
A.8 Playlists
A.9 Tracks

B. How are these Things related ?
B.1 A Music User must have one current Licence to listen to music.
B.2 A Licence allows a Music User to listen to music from a Music Provider.
B.3 A Music Provider creates Playlists which consist of one or more Tracks.
B.4 A Music Provider sends details of Playlists to the PRS.
B.5 Music Creators are paid according to the Tracks in each Playlist on which they appear.



Barry Williams

Principal Consultant
Database Answers Ltd.
London, England