In the table, there are links to schema xsd files and to a data dictionary for the various attributes and elements. Please note that the data dictionary is really for the relational database in which the metadata is initially captured and from which the XML instances are generated.
The audio-file technical information (schema, data dictionary) owes a great debt to work being carried out as a part of the Harvard University Library Digital Initiative and as an activity of the Audio Engineering Society. The same source provided the impetus for the digiprov schema (see also data dictionary) presented here, although this version is somewhat simplified from the Harvard-AES example (see digiprov explanation). The text technical metadata (schema, documentation, and data dictionary) is the work of Jerome McDonough, Elmer Bobst Library, New York University. The video-file technical information (schema, data dictionary) is very tentative and awaits improvement by video engineering specialists.
| Primary Schema | Extension schema and comment | |||
| <mets> | � | � | � | For more information, visit the METS website. |
| � | <dmdSec>
Descriptive Metadata Section |
� | MODS Schema | For more information, visit the MODS website. |
| � | <amdSec>
Administrative Metadata Section |
<techMD> Technical Metadata (about "files") |
AMD Schema (same schema as under sourceMD) |
Information specific to audio files, e.g., sampling frequency. |
| � | � | � | MIX Schema | Information specific to image
files, e.g., bits per pixel, color
space. For more information, visit the
MIX
website.
Note: for the time being, the AV Project is using a variant of MIX, with some added enumerated values and other slight changes. |
| � | � | � | Text techical metadata (same schema as under sourceMD) | Information specific to text files, e.g., character set, encoding used. |
| � | � | � | VMD Schema (same schema as under sourceMD) |
Information specific to video files, e.g., bit rate, compression codec. |
| � | � | <rightsMD> Rights and Access Management Metadata |
RMD Schema | Rights, restrictions, and/or other categorizing information that can be used to support rights-management and/or access-management systems. |
| � | � | <sourceMD> Metadata about the Source for the File in this METS object |
AMD Schema (same schema as under techMD, above) DB data dict (file and physical) Descriptive terms from MAVIS for reference. |
Information specific to audio items presented for file-format migration or to be digitized, e.g., channel or track specifications, sampling frequency. |
| � | � | � | IMD Schema (for use when source is physical item) DB data dict (IMD, file and physical) MIX Schema (same schema as under techMD above; for use when source is a digital file) DB data dict (MIX) |
Information specific to items
scanned to produce images
(IMD), e.g., type or
condition, ot items presented for file-format
migration (MIX).
Note: for the time being, the AV Project is using a variant of MIX, with some added enumerated values and other slight changes. |
| � | � | � | Text techical metadata (same schema as under techMD, above) | Information specific to text
files presented for file-format
migration, e.g., character set,
encoding.
Note: the project assumes that scanning a paper items with typography produces an image, and that text conversion methodology is covered in digiProvMD (below). |
| � | � | � | VMD Schema (same schema as under techMD, above) DB data dict (file and physical) Descriptive terms from MAVIS for reference. |
Information specific to video items presented for file-format migration or to be digitized, e.g., bit rate, tape stock information. |
| � | � | <digiProvMD> Metadata about the Process Used to Create the File |
PMD schema | About the events/steps/processes that occurred in reformatting or migrating entities. |
| � | <behaviorSec>
Behavior Section |
� | � | Section designed to identify digital object behaviors; for example as may be used in the FEDORA repository architecture. |
| � | <fileGrp>
File Groups Section |
� | � | The inventory of files that are part of this digital object, with location pointers. |
| � | <structMap>
Structural Map Section |
� | � | The metadata required to present and navigate this digital object. |
| </mets> | � | � | � | � |
Library
of Congress