Defining theme and content type codes

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Theme List Content Type List

In order to search for resources by theme and content type, the metadata MUST contain one of the theme or content type codes that the Metadata Service understands.

Because the same codes must be used in all metadata documents, you will be able to publish metadata in any language, to any Metadata Service and its Metadata Explorer. With this, it may be translated for any language, and will be able to find your document.

The theme categories used by the Metadata Service are described below. More than one theme can be defined for a resource. For example, if your dataset describes soil tests you might specify the theme codes for agriculture, geophysical, and environmental categories. Searches on any of those categories will find your dataset.

The descriptive name of each category appears below with bold text. These categories actually come from the ISO metadata standard. The ISO metadata editor presents you with a list of descriptive names for each category, but the editor actually saves the appropriate code into the metadata.

Because the FGDC metadata standard doesn’t directly support theme codes the FGDC editor isn’t designed to handle them. To work around this situation, the Metadata Service looks for theme codes among the document’s theme keywords. The code that must by typed into the FGDC metadata editor follows the category name below. These codes must be typed exactly as they are shown regardless of the language in which the rest of the metadata has been defined. For example, for a shapefile of precinct boundaries you would type the theme code "boundaries" into the FGDC metadata editor. For a shapefile of cell phone antennas you would type the theme code "utilitiesCommunication" into the FGDC metadata editor etc.


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Theme List: Where will I find this field?
The content type codes used by the Metadata Service are listed below;
Like the theme codes, they must be typed in exactly as they are shown.
But unlike the theme codes, only one content type code can be defined for a resource.

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Content Type List: Where will I find this field?


When ArcCatalog automatically creates and updates metadata, the Geography Network synchronizer will add a default content type code. For ArcIMS image and feature services, the code ‘Live Data and Maps’ is added to the metadata. For all other items the code ‘Downloadable Data’ is added.

Before you submit metadata to be published, you should consider whether the default content type code is appropriate for your resource and change the value if necessary.


 

Content Type field location

Content type gif

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Theme Type field location

Theme type gif