The DICOM Model of the Real World is extended with the addition of Defined Procedure Protocol and Performed Procedure Protocol objects whose relationship to existing DICOM Real World objects is shown in Figure 7.13.4-1.

Note that the information in the Equipment IE describes the equipment that created the Instance. The information in the Protocol Parameters may describe the equipment on which the protocol is intended to be executed which may or may not be the same as the equipment that created the Instance.