Defining theme and content type codes
Jump to:
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.
Top of page
Content Type List
Theme List:
Where will I find this field?
- Administrative and political boundaries:
boundaries;
This category refers to legal land descriptions.
- Agriculture and farming:
farming;
This category refers to
the rearing of animals or cultivation of plants. For example,
resources describing irrigation, aquaculture, herding, and
pests and diseases affecting crops and livestock.
- Atmosphere, climatology, and meteorology:
climatologyMeteorologyAtmosphere;
This category refers to
atmospheric processes and phenomena. For example,
resources describing cloud cover, weather, atmospheric
conditions, climate change, and precipitation.
- Biologic and ecologic:
biota;
This category refers to
naturally occurring flora and fauna. For example, resources
describing wildlife, biological sciences, ecology,
wilderness, sea life, wetlands, and habitats.
- Business and economic:
economy;
This category refers to
economic activities or employment. For example, resources
describing labor, revenue, commerce, industry, tourism and
ecotourism, forestry, fisheries, commercial or subsistence
hunting, and exploration and exploitation of resources such
as minerals, oil, and gas.
- Cadastral and land planning:
planningCadastre;
This
category refers to land use. For example, resources describing
zoning maps, cadastral surveys, and land ownership.
- Cultural, society, and demographic:
society;
This
category refers to the characteristics of societies and
cultures. For example, resources describing natural
settlements, anthropology, archaeology, education,
traditional beliefs, manners and customs, demographic data,
crime and justice, recreational areas and activities, social
impact assessments, and census information.
- Elevation and derived products:
elevation;
This category
refers to height above or below sea level. For example,
resources describing altitude, bathymetry, digital elevation
models, slope, and products derived from this information.
- Environment and conservation:
environment;
This
category refers to environmental resources, protection, and
conservation. For example, resources describing pollution,
waste storage and treatment, environmental impact
assessment, environmental risk, and nature reserves.
- Facilities and structures:
structure;
This category refers
to man-made construction. For example, resources
describing buildings, museums, churches, factories, housing,
monuments, and towers.
- Geological and geophysical:
geoscientificInformation;
This category refers to the earth sciences. For example,
resources describing geophysical features and processes,
minerals, the composition, structure and origin of the earth’s
rocks, earthquakes, volcanic activity, landslides, gravity
information, soils, permafrost, hydrogeology, and erosion.
- Human health and disease:
health;
This category refers to
health services, human ecology, and safety. For example,
resources describing human disease and illness, factors
affecting health, hygiene, mental and physical health,
substance abuse, and health services.
- Imagery, base maps, and land cover:
imageryBaseMapsEarthCover;
This category refers to base
maps. For example, resources describing land cover,
topographic maps, and classified and unclassified images.
- Inland water resources:
inlandWaters;
This category refers
to inland water features, drainage systems, and their
characteristics. For example, resources describing rivers and
glaciers, salt lakes, water use plans, dams, currents, floods,
water quality, and hydrographic charts.
- Locations and geodetic networks:
location;
This category
refers to positional information and services. For example,
resources describing addresses, geodetic networks, postal
zones and services, control points, and place names.
- Military and intelligence:
intelligenceMilitary;
This
category refers to military bases, structures, and activities.
For example, resources describing barracks, training
grounds, military transportation, and information collection.
- Oceans and estuaries:
oceans;
This category refers to the
features and characteristics of salt water bodies excluding
inland waters. For example, resources describing tides, tidal
waves, coastal information, and reefs.
- Transportation networks:
transportation;
This category
refers to the means and aids for conveying people and goods.
For example, resources describing roads, airports and
airstrips, shipping routes, tunnels, nautical charts, vehicle or
vessel location, aeronautical charts, and railways.
- Utility and communication networks:
utilitiesCommunication;
This category refers to energy,
water and waste systems, and communications infrastructure
and services. For example, resources describing
hydroelectricity, geothermal, solar, and nuclear sources of
energy, water purification and distribution, sewage
collection and disposal, electricity and gas distribution, data
communication, telecommunication, radio, and
communication networks.
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.
Top of page
Theme List
Content Type List:
Where will I find this field?
- Live Data and Maps
- Downloadable Data
- Offline Data
- Static Map Images
- Other Documents
- Applications
- Geographic Services
- Clearinghouses
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
Top of page
Theme List
Content Type List
Theme Type field location