Resource Graphic Overview ★★★

Geospatial data and service are largely visual by nature. Geospatial practitioners tend to be visually oriented. Browse graphics are a way of including in the metadata visual clues as to the nature and usefulness of resources.


Element Name	graphicOverview
Parent	MD_Metadata.identificationInfo>MD_Identification
Class/Type	MD_BrowseGraphic
Governance	Common ICSM, Agency, Domain
Purpose	Discovery, Identification
Audience	machine resource - ⭑
	general - ⭑ ⭑ ⭑ ⭑ ⭑
	resource manager - ⭑ ⭑
	specialist - ⭑ ⭑ ⭑
Metadata type	descriptive
ICSM Level of Agreement	⭑ ⭑ ⭑

Definition

A graphic that provides an illustration of a resource

ISO Obligation

In a metadata record there should be zero to many [0..*] graphicOverview packages for the cited resource in the MD_DataIdentification package of class MD_BrowseGraphic in a metadata record.

Discussion

Geospatial professionals by nature, rely to a large extent on visual information to gain an understanding of resources. Browse graphics provide in the metadata a way to communicate with users visually.

NOTE - Should include a legend for the graphic, if applicable.

EXAMPLE - A dataset thumbnail image, an organisation logo, security constraint or citation graphic.

Best Practice Recommendations

Therefore - to provide a quick way for users to discover and identify the resource they need, provide a graphic overview of the resource. At a minimum, this should include a name and link to an image.

Recommended Sub-Elements

From class MD_BrowseGraphic

fileName - (type - CharStr) [1..1] Mandatory for browse graphic elements - name of the file that contains a graphic that provides an illustration of the resource.
linkage - (class - CI_OnlineResource) [0..*] - link to browse graphic.
Optional:
imageConstraints - (class - MD_Constraints) [0..*] - restriction on access and/or use of browse graphic
fileType - (type - CharStr) [0..*] - format in which the illustration is encoded (e.g.: EPS, GIF, JPEG, PBM, PS, TIFF, PDF)

Also Consider

MD_BrowseGraphic - associates to a large number of packages for different purposes, such as business or product icons and logos
CI_OnLineFunctionCode - This codelist contains an option browseGraphic

Crosswalk considerations

ISO19139

browseGraphic is a new package in iso19115-1. New elements include:

MD_BrowseGraphic.imageConstraint *(class - MD_Constraints)
This new element was added in order to allow the specification of constraints on a browse graphic associated with a resource.
MD_BrowseGraphic.linkage *(class - CI_OnlineResource)
This new element was added in order to allow a straightforward specification of the link to the browse graphic and the capability to add additionalinformation (name, description, …) about that graphic.

Examples

XML -

<mdb:MD_Metadata>
....
  <mdb:identificationInfo>
   <mri:MD_DataIdentification>
     <mri:citation>
      <cit:CI_Citation>
        ....
        <cit:graphic>
         <mcc:MD_BrowseGraphic>
           <mcc:fileName>
            <gco:CharacterString>
            https://static.wixstatic.com/media
            /414fd2_2f712656fb5547f39a08a53aab98cc29~mv2.png/v1
            /fill/w_92,h_146,al_c,q_80,usm_0.66_1.00_0.01
            /IFaGR9yg.webp</gco:CharacterString>
           </mcc:fileName>
           <mcc:linkage>
            <cit:CI_OnlineResource>
              <cit:linkage>
               <gco:CharacterString>
               https://static.wixstatic.com/media
               /414fd2_2f712656fb5547f39a08a53aab98cc29~mv2.png
               /v1/fill/w_92,h_146,al_c,q_80,usm_0.66_1.00_0.01
               /IFaGR9yg.webp
               </gco:CharacterString>
              </cit:linkage>
              <cit:protocol>
               <gco:CharacterString>
                WWW:LINK-1.0-http--link
               </gco:CharacterString>
              </cit:protocol>
              <cit:name gco:nilReason="missing">
               <gco:CharacterString/>
              </cit:name>
              <cit:description gco:nilReason="missing">
               <gco:CharacterString/>
              </cit:description>
              <cit:function>
               <cit:CI_OnLineFunctionCode codeList=
               "https://schemas.isotc211.org/19115/resources
               /Codelist/cat/codelists.xml#CI_OnLineFunctionCode"
               codeListValue="browseGraphic"/>
              </cit:function>
            </cit:CI_OnlineResource>
           </mcc:linkage>
         </mcc:MD_BrowseGraphic>
         ....
      </cit:CI_Citation>
     </mri:citation>
   </mri:MD_DataIdentification>
  </mdb:identificationInfo>
....
</mdb:MD_Metadata>

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UML diagrams

Recommended elements highlighted in yellow

browseGraphic

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