The figure is a flow diagram showing the following relationships:

CDRs connects via down arrow to CDR Database.

CDR Database connects via right arrow to CDR Batch Retrieval Tool.

Scheduling is associated with CDR Batch Retrieval Tool via up arrow.

CDR Batch Retrieval Tool connects via right arrow to CDR File.

CDR File connects via right arrow to Rating System.

Rating Management is associated with Rating System via up arrow.

Rating System connects via right arrow to Post-Paid Database.