Compound Objects in django
Multi-page maps, called "compound objects" in CONTENTdm, pose a structural challenge in transitioning to a new system. In the data exported from CONTENTdm, compound object metadata is listed in separate rows: one for the object metadata, and then as many rows as necessary for the page metadata. The structure of the compound object is defined in a small XML file with the extension .cpd in CONTENTdm.
Sample Compound Object
The 1936 [State Highway Map of North Carolina] contains two sides, front and back.