Software Design

Music Streaming: Tracks, Playlists, and Rights

UML Class Diagrams · made in Skemio

UML class diagram showing Artist, Album, Track, Playlist, and User classes with many-to-many and composition relationships.
UML class diagram showing Artist, Album, Track, Playlist, and User classes with many-to-many and composition relationships.
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What it shows

  • Playlists and Tracks form a many-to-many relationship with order indexes.
  • Tracks exist within Albums but retain independent streaming rights metadata.
  • Collaborator permissions must sit on the playlist boundary, not individual tracks.

The takeaway

Model playlists as ordered join collections, isolating tracks from user playback state and permissions.

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