Tuesday, May 13, 2003


One metadata scheme I've not mentioned before is the Directory Interchange Format (DIF). I use it at the NASA's Global Change Master Directory.
DIF is the acronym for Directory Interchange Format, a de-facto standard used to create directory entries which describe a group of data. A DIF consists of a collection of fields which detail specific information about the data. Five fields are required in the DIF; the others expand upon and clarify the information. Some of the fields are text fields, others require the use of valid values.

The DIF is compatible with the U.S. federally mandated Federal Geographic Data Committee's (FGDC) Content Standard on Digital Geospatial Metadata (CSDGM).

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