11.2 EpcExternalPartReference

It defines a proxy for external part of the EPC package. It must be used at least for external HDF parts.

Each EpcExternalPartReference represents a single operating system file

Table 11.2-1 Attributes
Name	Type	Notes
Filename	String2000
MimeType	String2000	IAMF registered, if one exists, or a free text field. Needs documentation on seismic especially. MIME type for HDF proxy is : application/x-hdf5 (by convention).

Table 11.2-2 Associations
Association	Notes
From: EpcExternalPartReference. To: AbstractObject Generalization
From: ExternalDatasetPart. 1To: EpcExternalPartReference Association