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Syntactic and Semantic Validation without a Metadata Management SystemThe ability to maintain quality information is essential to securing the confidence in any system for which the information serves as a data source. NASA's Global Change Master Directory (GCMD), an online Earth science data locator, holds over 9000 data set descriptions and is in a constant state of flux as metadata are created and updated on a daily basis. In such a system, the importance of maintaining the consistency and integrity of these-metadata is crucial. The GCMD has developed a metadata management system utilizing XML, controlled vocabulary, and Java technologies to ensure the metadata not only adhere to valid syntax, but also exhibit proper semantics.
Document ID
20010087784
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Pollack, Janine (NASA Goddard Space Flight Center Greenbelt, MD United States)
Gokey, Christopher D. (Science Systems and Applications, Inc. Shelburne, MA United States)
Kendig, David (Science Systems and Applications, Inc. Lanham, MD United States)
Olsen, Lola (NASA Goddard Space Flight Center Greenbelt, MD United States)
Wharton, Stephen W.
Date Acquired
August 20, 2013
Publication Date
January 16, 2001
Subject Category
Documentation And Information Science
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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