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Future DIF Review Date


The <Future_DIF_Review_Date> allows for the specification of a future date at which the DIF should be reviewed for accuracy of scientific or technical content. Future metadata changes may be due to:

  • Anticipated changes in the personnel fields.
  • Planned changes to the data content (e.g., change in processing algorithm).
  • Expected inclusion of the data as part of a campaign.
  • Planned review of metadata and/or data by the data producer.


Year, month and day must follow the International Standard ISO 8601 in the form: yyyy-mm-dd, where:

yyyy= the 4 digit year
mm= the 2-digit month (01-12)
dd = the 2-digit day (01-31)

  • The <Future_DIF_Review_Date> is recommended and may be repeated.




This document should be cited as:
Directory Interchange Format (DIF) Writer's Guide, 2018.
Global Change Master Directory.
National Aeronautics and Space Administration.

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