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Element Description

The Purpose element contains suggested usage for the data, a description for as to why the resource exists, or a description for what the resource can be used. Any limitations on the resource including, but not limited to special restrictions, legal prerequisites, and terms and conditions should be placed into the Use Constraints element and not the Purpose element.

Best Practices

The Purpose element is optional. It can be leveraged to communicate to a user specific or broad applications the data is designed to be used for, and/or why the data were generated. 

Examples:

"To assess species composition, abundance, distribution and biomass of zooplankton within the Bering and Chukchi Seas , 1985-1989."

"To provide VIIRS 375m resolution active fire locations in Near Real-Time in easy to use formats."

"To serve a wide user community by providing composite Landsat images and raw data for urban areas that can be used in interdisciplinary studies of remote sensing and the environment."


Element Specification

ModelElementTypeConstraintsRequired?Cardinality
UMM-CPurpose String

1 - 1000 characters

No0..1


Metadata Validation and QA/QC

All metadata entering the CMR goes through the below process to ensure metadata quality requirements are met. All records undergo CMR validation before entering the system. The process of QA/QC is slightly different for NASA and non-NASA data providers. Non-NASA providers include interagency and international data providers and are referred to as the International Directory Network (IDN).

Please see the expandable sections below for flowchart details.


  • Manual Review
    • Check that the purpose description is appropriate for the data set
  • Automated Review
    • Check that the field has been populated
    • Check that the field length is not greater than 1000 characters

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ARC Priority Matrix

Priority CategorizationJustification

This element is categorized as highest priority when:

  • n/a

This element is categorized as medium priority when:

  • n/a

This element is categorized as low priority when:

  • n/a

The element is provided, and follows all applicable criteria specified in the best practices section above.

ARC Automated Rules

  • If no value is provided, return is "np"
  • Otherwise, return is "OK"

Dialect Mappings

DIF 9 (Note: DIF-9 is being phased out and will no longer be supported after 2018)

DIF 10

SpecificationPathTypeConstraintsRequired in DIF 10?Cardinality
DIF 10Summary/Purpose

String

n/a

No

0..1


Example Mapping

DIF 10

 </Abstract>
 <Purpose>
	To test the feasibility of creating a comparative index of national-level environmental sustainability. 
 </Purpose>
</Summary>

UMM

"Purpose":"Science Research"

ECHO 10

SpecificationPathTypeConstraintsRequired in ECHO10?CardinalityNotes
ECHO 10SuggestedUsageString

1 - 4000 characters

No0..1

This attribute describes how this
collection or granule may be best used to support earth
science/global change research


Example Mapping

ECHO 10

<SuggestedUsage>To serve a wide user community by providing composite Landsat images and raw data for urban areas that can be used in interdisciplinary studies of remote sensing and the environment.</SuggestedUsage>

UMM

"Purpose":"Science Research"

ISO 19115-2 MENDS

SpecificationPathTypeNotes
ISO 19115-2 MENDS/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:purpose/gco:CharacterString

String




Example Mapping

ISO 19115-2 MENDS

<gmi:MI_Metadata>
  
</gmi:MI_Metadata>

UMM

"Purpose":"Science Research"

ISO 19115-2 SMAP

SpecificationPathTypeNotes
ISO 19115-2 SMAP

/gmd:DS_Series/gmd:seriesMetadata/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:purpose/gco:CharacterString

String




Example Mapping

ISO 19115-2 SMAP

<gmd:DS_Series>
<gmd:seriesMetadata>
<gmi:MI_Metadata>
  
</gmi:MI_Metadata>
</gmd:seriesMetadata>
</gmd:DS_Series>

UMM

"Purpose":"Science Research"

UMM Migration

UMM Version 1.9.0Translation DirectionUMM Version 1.10.0



Future Mappings

ISO 19115-1

SpecificationPathTypeNotes
ISO 19115-1

/mdb:MD_Metadata/mdb:identificationInfo/mri:MD_DataIdentification/mri:purpose/gco:CharacterString 

String




Example Mapping

ISO 19115-1

tbd

UMM

"Purpose":"Science Research"

History

UMM Versioning

VersionDateWhat Changed
1.10.05/2/2018


1.9.0

ARC Documentation

VersionDateWhat ChangedAuthor
1.09/28/18Recommendations/priority matrix transferred from internal ARC documentation to wiki spaceJeanne' le Roux



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