Each Service Class Definition may optionally define one or more Meta Service-Object Pair Classes each being identified by a Meta SOP Class UID. Each Meta SOP Class represents the union of a set of SOP Classes defined in the Service Class.
By setting the Abstract Syntax Name to a specific Meta SOP Class UID value, DICOM Application Entities may negotiate Service Class operations and/or notifications for a set of defined SOP Classes using a single Abstract Syntax. Figure D.1-2 depicts this.
Figure D.1-2 SOP CLASS UIDs AND META SOP CLASS UIDs AND ABSTRACT SYNTAX NAMES