"Understanding PREMIS" is now available from the PREMIS Maintenance Activity website. This document is a "gentle" introduction to the PREMIS Data Dictionary for Preservation Metadata, giving an overview of its scope and goals. It does not give enough information for implementation, but will make the larger document, i.e. the PREMIS Data Dictionary, more familiar.
"Understanding PREMIS" was written by Priscilla Caplan, Florida Center for Library Automation, for the Library of Congress. It is available at: http://www.loc.gov/standards/premis/understanding-premis.pdf
The full PREMIS Data Dictionary is available at: http://www.loc.gov/standards/premis/v2/premis-2-0.pdf
http://purl.org/dlf/rdm200705. Created by a DLF/OCLC working group, the guidelines are to be used when creating metadata for born digital or to be digitized materials that have been digitized according to standards and best practices with the intention of including the metadata in the Registry of Digital Masters. The Registry is available through OCLC
WorldCat. "
For those who have already begun using Core 4.0 in its beta version, the Core 4.0 website contains a document entitled "Explanation of changes between VRA Core 4.0 beta version and VRA Core 4.0 release version"
VRA Core was developed and is maintained by the Data Standards Committee of the Visual Resources Association."


