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Element Description
The archive and distribution information main element allows data providers to provide users information of what is available for downloading when they are initially looking at a collection. The end users get information such as the average downloadable file size, format, mime type, checksum, an estimate of the collection's entire downloadable file size, etc.
Best Practices
There are multiple sub-elements that comprise Archive and Distribution Information for Collections:
Format: Defines a single format for an archival artifact (e.g., binary, jpeg, HDF5, HDF-EOS5, geotiff)
Format Type: Allows the provider to define if the archival artifact's format is in its native format or another supported format
Average File Size: An approximate average of the size of the the archivable item, which gives users an idea of the magnitude of each archivable file
Average File Size Unit: Unit of measure for the average file size (e.g., KB, MB, TB)
Total Collection File Size: An approximate total size of the archivable items, which gives users an idea of the magnitude of all the archivable files combined
Total Collection File Size Unit: Unit of measure for the total collection file size (e.g., KB, MB, TB)
Description: Enables the provider to provide more information about the archivable item
Examples:
Element Specification
Cardinality of Archive and Distribution Information:
Model | Element | Type | Usable Valid Values | Constraints | Required? | Cardinality | Notes |
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UMM-Common | ArchiveAndDistributionInformation/ FileArchiveInformation/ Format | String | 1 - 80 characters | Yes | 1 | ||
UMM-Common | ArchiveAndDistributionInformation/ FileArchiveInformation/FormatType | String | Native Supported | n/a | No | 0..1 | |
UMM-Common | ArchiveAndDistributionInformation/ FileArchiveInformation/ AverageFileSize | Decimal | Yes, if TotalCollectionFileSizeBeginDate is used. | 0..1 | |||
UMM-Common | ArchiveAndDistributionInformation/ FileArchiveInformation/ AverageFileSizeUnit | String | KB MB GB TB PB NA | n/a | Yes, if AverageFileSize is used. | 0..1 | |
UMM-Common | ArchiveAndDistributionInformation/ FileArchiveInformation/ TotalCollectionFileSize | Decimal | No | 0..1 | Either use TotalCollectionFileSize or TotalCollectiopnFileSizeBeginDate | ||
UMM-Common | ArchiveAndDistributionInformation/ FileArchiveInformation/ TotalCollectionFileSizeUnit | Enumeration | KB MB GB TB PB NA | n/a | Yes, if TotalCollectionFileSize is used | 0..1 | |
UMM-Common | ArchiveAndDistributionInformation/ FileArchiveInformation/ TotalCollectionFileSizeBeginDate | Date | No | 0..1 | Either use TotalCollectionFileSize or TotalCollectiopnFileSizeBeginDate | ||
UMM-Common | ArchiveAndDistributionInformation/ FileArchiveInformation/ Description | String | n/a | 1 - 1024 characters | No | 0..1 | |
ArchiveAndDistributionInformation/ FileDistributionInformation/Format | String | 1 - 80 characters | Yes | 1 | |||
ArchiveAndDistributionInformation/ FileDistributionInformation/ FormatType | String | Native Supported | No | 0..1 | |||
UMM-Common | ArchiveAndDistributionInformation/ FileDistributionInformation/ Media | String | n/a | 1 - 80 characters | No | 0..1 | |
UMM-Common | ArchiveAndDistributionInformation/ FileDistributionInformation/ AverageFileSize | Decimal | n/a | n/a | Yes, if TotalCollectionFileSizeBeginDate is used. | 0..1 | |
UMM-Common | ArchiveAndDistributionInformation/ FileDistributionInformation/ AverageFileSizeUnit | Enumeration | KB MB GB TB PB NA | Yes, if AverageFileSize is used. | 0..1 | ||
UMM-Common | ArchiveAndDistributionInformation/ FileDistributionInformation/ TotalCollectionFileSize | Decimal | n/a | No | 0..1 | Either use TotalCollectionFileSize or TotalCollectiopnFileSizeBeginDate | |
UMM-Common | ArchiveAndDistributionInformation/ FileDistributionInformation/ TotalCollectionFileSizeUnit | Enumeration | KB MB GB TB PB NA | n/a | Yes, if TotalCollectionFileSize is used | 0..1 | |
UMM-Common | ArchiveAndDistributionInformation/ FileDistributionInformation/ TotalCollectionFileSizeBeginDate | Date | No | 0..1 | Either use TotalCollectionFileSize or TotalCollectiopnFileSizeBeginDate | ||
UMM-Common | ArchiveAndDistributionInformation/ FileDistributionInformation/ Description | String | n/a | 1 - 1024 characters | No | 0..1 | |
UMM-Common | Fees | String | n/a | 1 - 255 characters | No | 0..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).
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ARC Automated Checks
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Dialect Mappings
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DIF 9 (Note: DIF-9 is being phased out and will no longer be supported after 2018) |
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DIF 10Instrument is a required metadata element. At least 1 Instrument Keyword must be provided under each Platform. Multiple Instruments may be listed if necessary (Cardinality: 1..*). Providing instrument characteristics is optional. An unlimited amount of instrument characteristics may be specified for a particular instrument (Cardinality: 0..*). If instrument characteristics are provided, all 5 sub-fields (Name, Description, DataType, Unit, Value) are required.
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ECHO 10Instrument is an optional metadata element, however, it is strongly recommended that it be provided when possible. Multiple Instruments may be listed if necessary (Cardinality: 0..*). Providing instrument characteristics is optional. An unlimited amount of instrument characteristics may be specified for a particular instrument (Cardinality: 0..*). If instrument characteristics are provided, all 5 sub-fields (Name, Description, DataType, Unit, Value) are required.
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ISO 19115-2 MENDSInstrument is an optional metadata element, however, it is strongly recommended that it be provided when possible. Multiple Instruments may be listed if necessary (Cardinality: 0..*). Providing instrument characteristics is optional. An unlimited amount of instrument characteristics may be specified for a particular instrument (Cardinality: 0..*). If instrument characteristics are provided, all 5 sub-fields (Name, Description, DataType, Unit, Value) are required.
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ISO 19115-2 SMAPInstrument is an optional metadata element, however, it is strongly recommended that it be provided when possible. Multiple Instruments may be listed if necessary (Cardinality: 0..*). Providing instrument characteristics is optional. An unlimited amount of instrument characteristics may be specified for a particular instrument (Cardinality: 0..*). If instrument characteristics are provided, all 5 sub-fields (Name, Description, DataType, Unit, Value) are required.
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UMM Migration
None
Future Mappings
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ISO 19115-1Instrument is an optional metadata element, however, it is strongly recommended that it be provided when possible. Multiple Instruments may be listed if necessary (Cardinality: 0..*). Providing instrument characteristics is optional. An unlimited amount of instrument characteristics may be specified for a particular instrument (Cardinality: 0..*). If instrument characteristics are provided, all 5 sub-fields (Name, Description, DataType, Unit, Value) are required.
Example Mapping
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History
UMM Versioning
Version | Date | What Changed |
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1.13.0 | 04/11/2019 | This element was added to the UMM-C specification. |
ARC Documentation
Version | Date | What Changed | Author |
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1.0 | 05/16/18 | Recommendations/priority matrix transferred from internal ARC documentation to wiki space |