Difference between revisions of "Data Discovery (DIF)"
From Earth Science Information Partners (ESIP)
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| + | The spirals below provide required and highly recommended attributes for NASA's Directory Interchange Format (DIF). Where compatible the spirals provide like xpath references for DIF, ECHO, ECS, SERF, ISO and ISO-1. | ||
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==DIF for Data Discovery-Required== | ==DIF for Data Discovery-Required== | ||
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<table xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:cw="http://www.ngdc.noaa.gov/metadata/published/xsd/crosswalk.xsd" xmlns:xs="http://www.w3.org/2001/XMLSchema" width="95%" border="1" cellpadding="3" cellspacing="3" style="border-collapse: collapse;"> | <table xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:cw="http://www.ngdc.noaa.gov/metadata/published/xsd/crosswalk.xsd" xmlns:xs="http://www.w3.org/2001/XMLSchema" width="95%" border="1" cellpadding="3" cellspacing="3" style="border-collapse: collapse;"> | ||
<tr> | <tr> | ||
| − | <th>Concept</th> | + | <th width="15%">Concept</th> |
| − | <th>Description</th> | + | <th width="25%">Description</th> |
| − | <th>Dialect (Fit) Paths</th> | + | <th width="60%">Dialect (Fit) Paths</th> |
</tr> | </tr> | ||
<tr> | <tr> | ||
Revision as of 07:17, September 23, 2014
The spirals below provide required and highly recommended attributes for NASA's Directory Interchange Format (DIF). Where compatible the spirals provide like xpath references for DIF, ECHO, ECS, SERF, ISO and ISO-1.
DIF for Data Discovery-Required
| Concept | Description | Dialect (Fit) Paths |
|---|---|---|
| Metadata Identifier | A phrase or string which uniquely identifies the metadata file/record. | ISO /*/gmd:fileIdentifier/gco:CharacterString ISO-1 /mdb:MD_Metadata/mdb:metadataIdentifier/mcc:MD_Identifier DIF /dif:DIF/dif:Entry_Id SERF /serf:SERF/serf:Entry_ID |
| Resource Title | A short description of the resource. The title should be descriptive enough so that when a user is presented with a list of titles the general content of the data set can be determined. | ISO /*/gmd:identificationInfo/*/gmd:citation/gmd:CI_Citation/gmd:title/gco:CharacterString ISO-1 /*/mdb:identificationInfo/*/mri:citation/cit:CI_Citation/cit:title/gco:CharacterString ECHO /*/echo:ShortName>/*/echo:LongName ECS /ecs:CollectionMetaDataFile/ecs:CollectionMetaDataSets/ecs:Collections/ecs:CollectionMetaData/ecs:ShortName > /ecs:CollectionMetaDataFile/ecs:CollectionMetaDataSets/ecs:Collections/ecs:CollectionMetaData/ecs:LongName DIF /dif:DIF/dif:Entry_Title DIF /dif:DIF/dif:Data_Set_Citation/dif:Dataset_Title |
| Keyword | A word or phrase that describes some aspect of a resource. Can be one of several types. Note: The general identification keywords usually have a type of "theme" and are refered to as "theme keywords". Other types and vocabularies are used for other information. Service Entry Resource Format (SERF) requires a Science and a Service GCMD Keyword. This concept is called "Subject" in the CSW Specification. |
ISO (1) /*/gmd:identificationInfo/*/gmd:descriptiveKeywords/gmd:MD_Keywords[gmd:type/gmd:MD_KeywordTypeCode='theme']/gmd:keyword/gco:CharacterString ISO-1 /mdb:MD_Metadata/mdb:identificationInfo/mri:MD_DataIdentification/mri:descriptiveKeywords/mri:MD_Keywords[mri:type/mri:MD_KeywordTypeCode='theme']/mri:keyword/gco:CharacterString ECHO (1) /*/echo:ScienceKeywords/echo:ScienceKeyword/echo:CategoryKeyword ECHO (1) /*/echo:ScienceKeywords/echo:ScienceKeyword/echo:TopicKeyword ECHO (1) /*/echo:ScienceKeywords/echo:ScienceKeyword/echo:TermKeyword ECHO (1) /*/echo:ScienceKeywords/echo:ScienceKeyword/echo:VariableLevel1Keyword/echo:Value ECHO (1) /*/echo:ScienceKeywords/echo:ScienceKeyword/echo:VariableLevel2Keyword/echo:Value ECHO (1) /*/echo:ScienceKeywords/echo:ScienceKeyword/echo:VariableLevel3Keyword ECHO (1) /*/echo:ScienceKeywords/echo:ScienceKeyword/echo:DetailedVariableKeyword ECS (1) /ecs:CollectionMetaDataFile/ecs:CollectionMetaDataSets/ecs:Collections/ecs:CollectionMetaData/ecs:DisciplineTopicParameters/ecs:DisciplineKeyword ECS (1) /ecs:CollectionMetaDataFile/ecs:CollectionMetaDataSets/ecs:Collections/ecs:CollectionMetaData/ecs:DisciplineTopicParameters/ecs:TopicKeyword ECS (1) /ecs:CollectionMetaDataFile/ecs:CollectionMetaDataSets/ecs:Collections/ecs:CollectionMetaData/ecs:DisciplineTopicParameters/ecs:TermKeyword ECS (1) /ecs:CollectionMetaDataFile/ecs:CollectionMetaDataSets/ecs:Collections/ecs:CollectionMetaData/ecs:DisciplineTopicParameters/ecs:VariableKeyword DIF (1) /dif:DIF/dif:Parameters/dif:Category DIF (1) /dif:DIF/dif:Parameters/dif:Topic DIF (1) /dif:DIF/dif:Parameters/dif:Term DIF (1) /dif:DIF/dif:Parameters/dif:Variable_Level_1 DIF (1) /dif:DIF/dif:Parameters/dif:Variable_Level_2 DIF (1) /dif:DIF/dif:Parameters/dif:Variable_Level_3 DIF (1) /dif:DIF/dif:Parameters/dif:Detailed_Variable SERF /serf:SERF/serf:Keyword |
| Topic Category | High level category enumeration used in ISO | ISO (1) /*/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:topicCategory/gmd:MD_TopicCategoryCode DIF (1) /dif:DIF/dif:ISO_Topic_Category |
| Distribution Contact | Contact information for the organization or individual that distributes the resource. | ISO /gmd:MD_Metadata/gmd:distributionInfo/gmd:MD_Distribution/gmd:distributor/gmd:MD_Distributor/gmd:distributorContact/gmd:CI_ResponsibleParty ISO-1 /mdb:MD_Metadata/mdb:distributionInfo/mrd:MD_Distribution/mrd:distributor/mrd:MD_Distributor/mrd:distributorContact/cit:CI_Responsibility ECHO /echo:Collection/echo:Contacts/echo:Contact DIF /dif:DIF/dif:Data_Center/dif:Personnel/dif:Role SERF /serf:SERF/serf:Service_Provider |
| Abstract | A paragraph describing the resource. Note: This concept is called "Desciption" in Catalog Services for the Web. |
ISO /*/gmd:identificationInfo/*/gmd:abstract/gco:CharacterString ISO-1 /*/mdb:identificationInfo/*/rmd:abstract/gco:CharacterString ECHO /*/echo:Description ECS /ecs:CollectionMetaDataFile/ecs:CollectionMetaDataSets/ecs:Collections/ecs:CollectionMetaData/ecs:CollectionDescription DIF /dif:DIF/dif:Summary/dif:Abstract SERF /serf:SERF/serf:Summary/serf:Abstract |
| Metadata Standard Name | The name of the standard to which the metadata conforms | ISO /gmd:MD_Metadata/gmd:metadataStandardName ISO-1 /mdb:MD_Metadata/mdb:metadataStandard DIF /serf:DIF/serf:Metadata_Name |
| Metadata Standard Version | The name of the standard to which the metadata conforms | ISO /gmd:MD_Metadata/gmd:metadataStandardVersion ISO-1 /mdb:MD_Metadata/mdb:metadataStandard/cit:CI_Citation/cit:identifier/mcc:MD_Identifier/mcc:version DIF /serf:DIF/serf:Metadata_Version |
xPath Note: The xPaths included in this table use several wildcards. // means any path, so //gmd:CI_ResponsibleParty indicates a gmd:CI_ResponsibleParty anywhere in an XML file. /*/ indicates a single level with several possible elements. This usually indicates one of several concrete realizations of an abstract object. For example /*/gmd:identificationInfo could be gmd:MD_Metadata/gmd:identificationInfo or gmi:MI_Metadata/gmd:identificationInfo and gmd:identificationInfo//*/gmd:descriptiveKeywords could be gmd:identificationInfo/gmd:MD_DataIdentification/gmd:descriptiveKeywords or gmd:identificationInfo/srv:SV_ServiceIdentification/gmd:descriptiveKeywords. Fit: The fit of the dialect path with the concept is estimated on a scale of 1 = excellent two-way fit, 2 = one-way fit or some other problem, 3 - extension required.
