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After conversations with ichard & Larry, various renaming has been done, for consistency and predictable behaviour. The names of the classes now reflect what they are. e.g. the old 'DisseminationPackage' is actually a class that disseminates packages, rather than representing a package itself.

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• AbstractMetsDissemination -> AbstractMETSDisseminator
• AbstractMetsSubmission -> AbstractMETSIngester
• DisseminationPackage -> PackageDisseminator
• DSpaceMetsSipExport -> DSpaceMETSDisseminator
• DSpaceMetsSipImport -> DSpaceMETSIngester
• PDFPackage -> PDFIngester
• SubmissionPackage -> PackageIngester

What is a package?

For this discussion, a package is a representation of a DSpace Item
in a single data stream.
DSpace must be able to ingest a new Item from the package representation.
The package does not
necessarily contain every bit of data and metadata within itself;
it may include references to external resources which must be fetched
separately.
The essential components of a package are:

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