This graphic is divided into two parts. The top part is labeled "Time-managed policy", and the bottom part is labeled "Content-managed policy."

The "Time-managed policy" part shows a time line with ticks identified as "Volume Set Creation", "Volume Set Closed", and "Volume Set Expiration". The portion of the time line between "Volume Set Creation" and "Volume Set Closed" is identified as "Write Window" and "Updates Allowed". The portion of the time line between "Volume Set Closed" and "Volume Set Expiration" is identified as "Retain Duration" and "Updates Forbidden".

The "Content-managed policy" part shows a volume set as a row of rectangles labeled "Backup piece". Above the row of rectangles are two larger rectangles labeled "Deletion initiated by RMAN" and "Deletion initiated by obtool or the Web tool" These two rectangles are joined by a horizontal solid line labeled "Or". At the middle of this horizontal line is a vertical line ending in an arrow, pointing at one of the rectangles labeled "Backup piece".