Directory Interchange Format (DIF) Writer's Guide
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What is a DIF?
XML DIF Schema
Some Tips on Writing DIFs
Procedure for Suggesting Changes
Entry ID
Quality
Entry Title
Access Constraints
Parameters (Science Keywords)
Use Constraints
ISO Topic Category
Distribution
Data Center
Data Set Language
Summary
Data Set Progress
Metadata_Name
Related URL
Metadata_Version
DIF Revision History
Data Set Citation
Keyword (Ancillary Keyword)
Personnel
Originating Center
Instrument
Multimedia Sample
Platform
References (Publications)
Temporal Coverage
Parent DIF
Paleo-Temporal Coverage
IDN Node
Spatial Coverage
DIF Creation Date
Location
Last DIF Revision Date
Data Resolution
Future DIF Review Date
Project
Privacy Status
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This document should be cited as:
Directory Interchange Format (DIF) Writer's Guide, 2008.
Global Change Master Directory. National Aeronautics and Space Administration. [http://gcmd.nasa.gov/User/difguide/].