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The focus of this Case Study is to identify and compare the usage of metadata elements and attributes in CMR metadata collections as well to identify and compare the completeness of UMM-Profile concepts in CMR metadata collections. The field metadata usage studies include a comparison of NASA metadata with IDN and SciOps metadata as well as an evaluation of Commonly Used Documentation Objects (CUDOs).This work updates our analysis of CMR metadata in several important ways:

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Summary Tables include concept names (with links to information describing the concepts in the ISO Explorer), ISO paths used to search for the concepts, summary guidance relevant to the specific concepts, histograms that show the number of records in each collection that are missing the concept as well as links to table that lost shows the specific records that are missing various elements.

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