# ISO 19115-3 Codelist Report

## Codelists for description of metadata datasets compliant with ISO/TC 211 19115-3

Scope | Codelists for description of metadata datasets compliant with ISO/TC 211 19115-3
Field of Application | ISO TC211 Metadata Standards
Version (Date) | 0.1 ()

## CI_DateTypeCode ( CI_DateTypeCode ):

Description: identification of when a given event occurred

Entry | Definition
--- | ---
CI_DateTypeCode_creation | date identifies when the resource was brought into existence
CI_DateTypeCode_publication | date identifies when the resource was issued
CI_DateTypeCode_revision | date identifies when the resource was examined or re-examined and improved or amended
CI_DateTypeCode_expiry | date identifies when resource expires
CI_DateTypeCode_lastUpdate | date identifies when resource was last updated
CI_DateTypeCode_lastRevision | date identifies when resource was last reviewed
CI_DateTypeCode_nextUpdate | date identifies when resource will be next updated
CI_DateTypeCode_unavailable | date identifies when resource became not available or obtainable
CI_DateTypeCode_inForce | date identifies when resource became in force
CI_DateTypeCode_adopted | date identifies when resource was adopted
CI_DateTypeCode_deprecated | date identifies when resource was deprecated
CI_DateTypeCode_superseded | date identifies when resource was superseded or replaced by another resource
CI_DateTypeCode_validityBegins | time at which the data are considered to become valid. NOTE: There could be quite a delay between creation and validity begins
CI_DateTypeCode_validityExpires | time at which the data are no longer considered to be valid
CI_DateTypeCode_released | the date that the resource shall be released for public access
CI_DateTypeCode_distribution | date identifies when an instance of the resource was distributed

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## CI_OnLineFunctionCode ( CI_OnLineFunctionCode ):

Description: function performed by the resource

Entry | Definition
--- | ---
CI_OnLineFunctionCode_download | online instructions for transferring data from one storage device or system to another
CI_OnLineFunctionCode_information | online information about the resource
CI_OnLineFunctionCode_offlineAccess | online instructions for requesting the resource from the provider
CI_OnLineFunctionCode_order | online order process for obtaining the resource
CI_OnLineFunctionCode_search | online search interface for seeking out information about the resource
CI_OnLineFunctionCode_completeMetadata | complete metadata provided
CI_OnLineFunctionCode_browseGraphic | browse graphic provided
CI_OnLineFunctionCode_upload | online resource upload capability provided
CI_OnLineFunctionCode_emailService | online email service provided
CI_OnLineFunctionCode_browsing | online browsing provided
CI_OnLineFunctionCode_fileAccess | online file access provided

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## CI_PresentationFormCode ( CI_PresentationFormCode ):

Description: mode in which the data are represented

Entry | Definition
--- | ---
CI_PresentationFormCode_documentDigital | digital representation of a primarily textual item (can contain illustrations also)
CI_PresentationFormCode_documentHardcopy | representation of a primarily textual item (can contain illustrations also) on paper, photographic material, or other media
CI_PresentationFormCode_imageDigital | likeness of natural or man-made features, objects, and activities acquired through the sensing of visual or any other segment of the electromagnetic spectrum by sensors, such as thermal infrared, and high resolution radar and stored in digital format
CI_PresentationFormCode_imageHardcopy | likeness of natural or man-made features, objects, and activities acquired through the sensing of visual or any other segment of the electromagnetic spectrum by sensors, such as thermal infrared, and high resolution radar and reproduced on paper, photographic material, or other media for use directly by the human user
CI_PresentationFormCode_mapDigital | map represented in raster or vector form
CI_PresentationFormCode_mapHardcopy | map printed on paper, photographic material, or other media for use directly by the human user
CI_PresentationFormCode_modelDigital | multi-dimensional digital representation of a feature, process, etc.
CI_PresentationFormCode_modelHardcopy | 3-dimensional, physical model
CI_PresentationFormCode_profileDigital | vertical cross-section in digital form
CI_PresentationFormCode_profileHardcopy | vertical cross-section printed on paper, etc.
CI_PresentationFormCode_tableDigital | digital representation of facts or figures systematically displayed, especially in columns
CI_PresentationFormCode_tableHardcopy | representation of facts or figures systematically displayed, especially in columns, printed on paper, photographic material, or other media
CI_PresentationFormCode_videoDigital | digital video recording
CI_PresentationFormCode_videoHardcopy | video recording on film
CI_PresentationFormCode_audioDigital | digital audio recording
CI_PresentationFormCode_audioHardcopy | audio recording delivered by analog media, such as a magnetic tape
CI_PresentationFormCode_multimediaDigital | information representation using simultaneously various digital modes for text, sound, image
CI_PresentationFormCode_multimediaHardcopy | information representation using simultaneously various analog modes for text, sound, image
CI_PresentationFormCode_physicalSample | a physical object, e.g. Rock or mineral sample, microscope slide
CI_PresentationFormCode_diagramDigital | information represented graphically by charts such as pie chart, bar chart, and other type of diagrams and recorded in digital format
CI_PresentationFormCode_diagramHardcopy | information represented graphically by charts such as pie chart, bar chart, and other type of diagrams and printed on paper, phototographic material, or other media

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## CI_RoleCode ( CI_RoleCode ):

Description: function performed by the responsible party

Entry | Definition
--- | ---
CI_RoleCode_resourceProvider | party that supplies the resource
CI_RoleCode_custodian | party that accepts accountability and responsibility for the resource and ensures appropriate care and maintenance of the resource
CI_RoleCode_owner | party that owns the resource
CI_RoleCode_user | party who uses the resource
CI_RoleCode_distributor | party who distributes the resource
CI_RoleCode_originator | party who created the resource
CI_RoleCode_pointOfContact | party who can be contacted for acquiring knowledge about or acquisition of the resource
CI_RoleCode_principalInvestigator | key party responsible for gathering information and conducting research
CI_RoleCode_processor | party who has processed the data in a manner such that the resource has been modified
CI_RoleCode_publisher | party who published the resource
CI_RoleCode_author | party who authored the resource
CI_RoleCode_sponsor | party who speaks for the resource
CI_RoleCode_coAuthor | party who jointly authors the resource
CI_RoleCode_collaborator | party who assists with the generation of the resource other than the principal investigator
CI_RoleCode_editor | party who reviewed or modified the resource to improve the content
CI_RoleCode_mediator | a class of entity that mediates access to the resource and for whom the resource is intended or useful
CI_RoleCode_rightsHolder | party owning or managing rights over the resource
CI_RoleCode_contributor | party contributing to the resource
CI_RoleCode_funder | party providing monetary support for the resource
CI_RoleCode_stakeholder | party who has an interest in the resource or the use of the resource

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## CI_TelephoneTypeCode ( CI_TelephoneTypeCode ):

Description: type of telephone

Entry | Definition
--- | ---
CI_TelephoneTypeCode_voice | telephone provides voice service
CI_TelephoneTypeCode_fax | telephone provides facsimile service
CI_TelephoneTypeCode_sms | telephone provides sms service

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## DS_AssociationTypeCode ( DS_AssociationTypeCode ):

Description: justification for the correlation of two resources

Entry | Definition
--- | ---
DS_AssociationTypeCode_crossReference | reference from one resource to another
DS_AssociationTypeCode_largerWorkCitation | reference to a master resource of which this one is a part
DS_AssociationTypeCode_partOfSeamlessDatabase | part of same structured set of data held in a computer
DS_AssociationTypeCode_stereoMate | part of a set of imagery that when used together, provides three-dimensional images
DS_AssociationTypeCode_isComposedOf | reference to resources that are parts of this resource
DS_AssociationTypeCode_collectiveTitle | common title for a collection of resources. NOTE: title identifies elements of a series collectively, combined with information about what volumes are available at the source cite
DS_AssociationTypeCode_series | associated through a common heritage such as produced to a common product specification
DS_AssociationTypeCode_dependency | associated through a dependency
DS_AssociationTypeCode_revisionOf | resource is a revision of associated resource

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## DCPList ( DCPList ):

Description: class of information to which the referencing entity applies

Entry | Definition
--- | ---
DCPList_XML | Extensible Markup Language
DCPList_CORBA | Common Object Request Broker Architecture
DCPList_JAVA | Object-oriented programming language
DCPList_COM | Component Object Model
DCPList_SQL | Structured Query Language
DCPList_SOAP | Simple Object Access Protocol
DCPList_Z3950 | ISO 23950
DCPList_HTTP | HyperText Transfer Protocol
DCPList_FTP | File Transfer Protocol
DCPList_WebServices | Web service

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## DS_InitiativeTypeCode ( DS_InitiativeTypeCode ):

Description: type of aggregation activity in which resources are related

Entry | Definition
--- | ---
DS_InitiativeTypeCode_campaign | series of organized planned actions
DS_InitiativeTypeCode_collection | accumulation of resources assembled for a specific purpose
DS_InitiativeTypeCode_exercise | specific performance of a function or group of functions
DS_InitiativeTypeCode_experiment | process designed to find if something is effective or valid
DS_InitiativeTypeCode_investigation | search or systematic inquiry
DS_InitiativeTypeCode_mission | specific operation of a data collection system
DS_InitiativeTypeCode_sensor | device or piece of equipment which detects or records
DS_InitiativeTypeCode_operation | action that is part of a series of actions
DS_InitiativeTypeCode_platform | vehicle or other support base that holds a sensor
DS_InitiativeTypeCode_process | method of doing something involving a number of steps
DS_InitiativeTypeCode_program | specific planned activity
DS_InitiativeTypeCode_project | organized undertaking, research, or development
DS_InitiativeTypeCode_study | examination or investigation
DS_InitiativeTypeCode_task | piece of work
DS_InitiativeTypeCode_trial | process of testing to discover or demonstrate something

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## MD_CellGeometryCode ( MD_CellGeometryCode ):

Description: code indicating the geometry represented by the grid cell value

Entry | Definition
--- | ---
MD_CellGeometryCode_point | each cell represents a point
MD_CellGeometryCode_area | each cell represents an area
MD_CellGeometryCode_voxel | each cell represents a volumetric measurement on a regular grid in three dimensional space
MD_CellGeometryCode_stratum | height range for a single point vertical profile

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## MD_ClassificationCode ( MD_ClassificationCode ):

Description: name of the handling restrictions on the resource

Entry | Definition
--- | ---
MD_ClassificationCode_unclassified | available for general disclosure
MD_ClassificationCode_restricted | not for general disclosure
MD_ClassificationCode_confidential | available for someone who can be entrusted with information
MD_ClassificationCode_secret | kept or meant to be kept private, unknown, or hidden from all but a select group of people
MD_ClassificationCode_topSecret | of the highest secrecy
MD_ClassificationCode_SBU | although unclassified, requires strict controls over its distribution
MD_ClassificationCode_forOfficialUseOnly | unclassified information that is to be used only for official purposes determined by the designating body
MD_ClassificationCode_protected | compromise of the information could cause damage
MD_ClassificationCode_limitedDistribution | desimination limited by designating body

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## MD_CoverageContentTypeCode ( MD_CoverageContentTypeCode ):

Description: specific type of information represented in the cell

Entry | Definition
--- | ---
MD_CoverageContentTypeCode_image | meaningful numerical representation of a physical parameter that is not the actual value of the physical parameter
MD_CoverageContentTypeCode_thematicClassification | code value with no quantitative meaning, used to represent a physical quantity
MD_CoverageContentTypeCode_physicalMeasurement | value in physical units of the quantity being measured
MD_CoverageContentTypeCode_auxillaryInformation | data, usually a physical measurement, used to support the calculation of the primary physicalMeasurement coverages in the dataset (e.g. grid of aerosol optical thickness used in the calculation of a sea surface temperature product).
MD_CoverageContentTypeCode_qualityInformation | data used to characterize the quality of the physicalMeasurement coverages in the dataset. Typically included in a gmi:QE_CoverageResult.
MD_CoverageContentTypeCode_referenceInformation | reference information used to support the calculation or use of the physicalMeasurement coverages in the dataset (e.g. grids of latitude/longitude used to geolocate the physical measurements).
MD_CoverageContentTypeCode_modelResult | resources with values that are calculated using a model rather than being observed or calculated from observations.
MD_CoverageContentTypeCode_coordinate | data used to provide coordinate axis values

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## MD_DatatypeCode ( MD_DatatypeCode ):

Description: datatype of element or entity

Entry | Definition
--- | ---
MD_DatatypeCode_class | descriptor of a set of objects that share the same attributes, operations, methods, relationships, and behaviour
MD_DatatypeCode_codelist | flexible enumeration useful for expressing a long list of values, can be extended
MD_DatatypeCode_enumeration | data type whose instances form a list of named literal values, not extendable
MD_DatatypeCode_codelistElement | permissible value for a codelist or enumeration
MD_DatatypeCode_abstractClass | class that cannot be directly instantiated
MD_DatatypeCode_aggregateClass | class that is composed of classes it is connected to by an aggregate relationship
MD_DatatypeCode_specifiedClass | subclass that may be substituted for its superclass
MD_DatatypeCode_datatypeClass | class with few or no operations whose primary purpose is to hold the abstract state of another class for transmittal, storage, encoding or persistent storage
MD_DatatypeCode_interfaceClass | named set of operations that characterize the behaviour of an element
MD_DatatypeCode_unionClass | class describing a selection of one of the specified types
MD_DatatypeCode_metaClass | class whose instances are classes
MD_DatatypeCode_typeClass | class used for specification of a domain of instances (objects), together with the operations applicable to the objects. A type may have attributes and associations
MD_DatatypeCode_characterString | textual information
MD_DatatypeCode_integer | numerical field
MD_DatatypeCode_association | semantic relationship between two classes that involves connections among their instances

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## MD_DimensionNameTypeCode ( MD_DimensionNameTypeCode ):

Description: name of the dimension

Entry | Definition
--- | ---
MD_DimensionNameTypeCode_row | ordinate (y) axis
MD_DimensionNameTypeCode_column | abscissa (x) axis
MD_DimensionNameTypeCode_vertical | vertical (z) axis
MD_DimensionNameTypeCode_track | along the direction of motion of the scan point
MD_DimensionNameTypeCode_crossTrack | perpendicular to the direction of motion of the scan point
MD_DimensionNameTypeCode_line | scan line of a sensor
MD_DimensionNameTypeCode_sample | element along a scan line
MD_DimensionNameTypeCode_time | duration

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## MD_GeometricObjectTypeCode ( MD_GeometricObjectTypeCode ):

Description: name of point or vector objects used to locate zero-, one-, two-, or three-dimensional spatial locations in the dataset

Entry | Definition
--- | ---
MD_GeometricObjectTypeCode_complex | set of geometric primitives such that their boundaries can be represented as a union of other primitives
MD_GeometricObjectTypeCode_composite | connected set of curves, solids or surfaces
MD_GeometricObjectTypeCode_curve | bounded, 1-dimensional geometric primitive, representing the continuous image of a line
MD_GeometricObjectTypeCode_point | zero-dimensional geometric primitive, representing a position but not having an extent
MD_GeometricObjectTypeCode_solid | bounded, connected 3-dimensional geometric primitive, representing the continuous image of a region of space
MD_GeometricObjectTypeCode_surface | bounded, connected 2-dimensional geometric primitive, representing the continuous image of a region of a plane

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## MD_ImagingConditionCode ( MD_ImagingConditionCode ):

Description: code which indicates conditions which may affect the image

Entry | Definition
--- | ---
MD_ImagingConditionCode_blurredImage | portion of the image is blurred
MD_ImagingConditionCode_cloud | portion of the image is partially obscured by cloud cover
MD_ImagingConditionCode_degradingObliquity | acute angle between the plane of the ecliptic (the plane of the Earth s orbit) and the plane of the celestial equator
MD_ImagingConditionCode_fog | portion of the image is partially obscured by fog
MD_ImagingConditionCode_heavySmokeOrDust | portion of the image is partially obscured by heavy smoke or dust
MD_ImagingConditionCode_night | image was taken at night
MD_ImagingConditionCode_rain | image was taken during rainfall
MD_ImagingConditionCode_semiDarkness | image was taken during semi-dark conditions; twilight conditions
MD_ImagingConditionCode_shadow | portion of the image is obscured by shadow
MD_ImagingConditionCode_snow | portion of the image is obscured by snow
MD_ImagingConditionCode_terrainMasking | the absence of collection data of a given point or area caused by the relative location of topographic features which obstruct the collection path between the collector(s) and the subject(s) of interest

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## MD_KeywordTypeCode ( MD_KeywordTypeCode ):

Description: methods used to group similar keywords

Entry | Definition
--- | ---
MD_KeywordTypeCode_discipline | keyword identifies a branch of instruction or specialized learning
MD_KeywordTypeCode_place | keyword identifies a location
MD_KeywordTypeCode_stratum | keyword identifies the layer(s) of any deposited substance or levels within an ordered system
MD_KeywordTypeCode_temporal | keyword identifies a time period related to the resource
MD_KeywordTypeCode_theme | keyword identifies a particular subject or topic
MD_KeywordTypeCode_dataCentre | keyword identifies a repository or archive that manages and distributes data
MD_KeywordTypeCode_featureType | keyword identifies a resource containing or about a collection of feature instances with common characteristics
MD_KeywordTypeCode_instrument | keyword identifies a device used to measure or compare physical properties
MD_KeywordTypeCode_platform | keyword identifies a structure upon which an instrument is mounted
MD_KeywordTypeCode_process | keyword identifies a series of actions or natural occurrences
MD_KeywordTypeCode_project | keyword identifies an endeavour undertaken to create or modify a product or service
MD_KeywordTypeCode_service | keyword identifies an activity carried out by one party for the benefit of another
MD_KeywordTypeCode_product | keyword identifies a type of product
MD_KeywordTypeCode_subTopicCategory | refinement of a topic category for the purpose of geographic data classification
MD_KeywordTypeCode_taxon | keyword identifies a taxonomy of the resource

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## MD_MaintenanceFrequencyCode ( MD_MaintenanceFrequencyCode ):

Description: frequency with which modifications and deletions are made to the data after it is first produced

Entry | Definition
--- | ---
MD_MaintenanceFrequencyCode_continual | resource is repeatedly and frequently updated
MD_MaintenanceFrequencyCode_daily | resource is updated each day
MD_MaintenanceFrequencyCode_weekly | resource is updated on a weekly basis
MD_MaintenanceFrequencyCode_fortnightly | resource is updated every two weeks
MD_MaintenanceFrequencyCode_monthly | resource is updated each month
MD_MaintenanceFrequencyCode_quarterly | resource is updated every three months
MD_MaintenanceFrequencyCode_biannually | resource is updated twice each year
MD_MaintenanceFrequencyCode_annually | resource is updated every year
MD_MaintenanceFrequencyCode_asNeeded | resource is updated as deemed necessary
MD_MaintenanceFrequencyCode_irregular | resource is updated in intervals that are uneven in duration
MD_MaintenanceFrequencyCode_notPlanned | there are no plans to update the data
MD_MaintenanceFrequencyCode_unknown | frequency of maintenance for the data is not known
MD_MaintenanceFrequencyCode_periodic | resource is updated at regular intervals
MD_MaintenanceFrequencyCode_semimonthly | resource updated twice a monthly
MD_MaintenanceFrequencyCode_biennially | resource is updated every 2 years

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## MD_MediumFormatCode ( MD_MediumFormatCode ):

Description: method used to write to the medium

Entry | Definition
--- | ---
MD_MediumFormatCode_cpio | Copy In / Out (UNIX file format and command)
MD_MediumFormatCode_tar | Tape Archive
MD_MediumFormatCode_highSierra | high sierra file system
MD_MediumFormatCode_iso9660 | information processing volume and file structure of CD-ROM
MD_MediumFormatCode_iso9660RockRidge | rock ridge interchange protocol (UNIX)
MD_MediumFormatCode_iso9660AppleHFS | hierarchical file system (Macintosh)
MD_MediumFormatCode_udf | universal disk format

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## MD_ObligationCode ( MD_ObligationCode ):

Description: obligation of the element or entity

Entry | Definition
--- | ---
MD_ObligationCode_mandatory | element is always required
MD_ObligationCode_optional | element is not required
MD_ObligationCode_conditional | element is required when a specific condition is met

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## MD_PixelOrientationCode ( MD_PixelOrientationCode ):

Description: point in a pixel corresponding to the Earth location of the pixel

Entry | Definition
--- | ---
MD_PixelOrientationCode_center | point halfway between the lower left and the upper right of the pixel
MD_PixelOrientationCode_lowerLeft | the corner in the pixel closest to the origin of the SRS; if two are at the same distance from the origin, the one with the smallest x-value
MD_PixelOrientationCode_lowerRight | next corner counterclockwise from the lower left
MD_PixelOrientationCode_upperRight | next corner counterclockwise from the lower right
MD_PixelOrientationCode_upperLeft | next corner counterclockwise from the upper right

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## MD_ProgressCode ( MD_ProgressCode ):

Description: status of the resource

Entry | Definition
--- | ---
MD_ProgressCode_completed | has been completed
MD_ProgressCode_historicalArchive | stored in an offline storage facility
MD_ProgressCode_obsolete | no longer relevant
MD_ProgressCode_onGoing | continually being updated
MD_ProgressCode_planned | fixed date has been established upon or by which the resource will be created or updated
MD_ProgressCode_required | needs to be generated or updated
MD_ProgressCode_underDevelopment | currently in the process of being created
MD_ProgressCode_final | progress concluded and no changes will be accepted
MD_ProgressCode_pending | committed to, but not yet addressed
MD_ProgressCode_retired | item is no longer recommended for use. It has not been superseded by another item
MD_ProgressCode_superseded | replaced by new
MD_ProgressCode_tentative | provisional changes likely before resource becomes final or complete
MD_ProgressCode_valid | acceptable under specific conditions
MD_ProgressCode_accepted | agreed to by sponsor
MD_ProgressCode_notAccepted | rejected by sponsor
MD_ProgressCode_withdrawn | removed from consideration
MD_ProgressCode_proposed | suggested that development needs to be undertaken
MD_ProgressCode_deprecated | resource superseded and will become obsolete, use only for historical purposes

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## MD_ReferenceSystemTypeCode ( MD_ReferenceSystemTypeCode ):

Description: defines type of reference system used

Entry | Definition
--- | ---
MD_ReferenceSystemTypeCode_compoundEngineeringParametric | compound statio-parametric coordinate reference system containing an engineering coordinate reference system and a parametric reference system. e.g. [local] x, y, pressure
MD_ReferenceSystemTypeCode_compoundEngineeringParametricTemporal | compound statio-parametric-temporal coordinate reference system containing an engineering, a parametric, and a temporal coordinate reference system. e.g. [local] x, y, pressure, time
MD_ReferenceSystemTypeCode_compoundEngineeringTemporal | compound spatio-temporal coordinate reference system containing an engineering and a temporal coordinate reference system. e.g. [local] x, y, time
MD_ReferenceSystemTypeCode_compoundEngineeringVertical | compound spatial reference system containing a horizontal engineering coordinate reference system and a vertical coordinate reference system. e.g. [local] x, y, height
MD_ReferenceSystemTypeCode_compoundEngineeringVerticalTemporal | compound spatio-temporal coordinate reference system containing an engineering, a vertical, and a temporal coordinate reference system. e.g. [local] x, y, height, time
MD_ReferenceSystemTypeCode_compoundGeodeticParametric | compound statio-parametric coordinate reference system containing a 2 dimensional geographic horizontal coordinate reference system and a parametric reference system. e.g. latitude, longitude, pressure
MD_ReferenceSystemTypeCode_compoundGeodeticParametricTemporal | compound statio-parametric-temporal coordinate reference system containing a 2 dimensional geographic horizontal, a parametric and a temporal coordinate reference system. e.g. latitude, longitude, pressure, time
MD_ReferenceSystemTypeCode_compoundGeographic2DTemporal | compound spatio-temporal coordinate reference system containing a 2 dimensional geographic horizontal coordinate reference system and a temporal reference system. e.g. latitude, longitude, time
MD_ReferenceSystemTypeCode_compoundGeographic2DVertical | compound coordinate reference system in which one constituent coordinate reference system is a horizontal geodetic coordinate reference system and one is a vertical coordinate reference system. e.g. latitude, longitude, [gravity-related] height or depth
MD_ReferenceSystemTypeCode_compoundGeographicVerticalTemporal | compound spatio-temporal coordinate reference system containing a 2 dimensional geographic horizontal, a vertical, and a temporal coordinate reference system. e.g. latitude, longitude, height, time
MD_ReferenceSystemTypeCode_compoundGeographic3DTemporal | compound spatio-temporal coordinate reference system containing a 3 dimensional geographic and a temporal coordinate reference system. e.g. latitude, longitude, ellipsoidal height, time
MD_ReferenceSystemTypeCode_compoundProjected2DParametric | compound statio-parametric coordinate reference system containing a projected horizontal coordinate reference system and a parametric reference system. e.g. easting, northing, density
MD_ReferenceSystemTypeCode_compoundProjected2DParametricTemporal | compound statio-parametric-temporal coordinate reference system containing a projected horizontal, a parametric, and a temporal coordinate reference system. e.g. easting, northing, density, time
MD_ReferenceSystemTypeCode_compoundProjectedTemporal | compound spatio-temporal coordinate reference system containing a projected horizontal and a temporal coordinate reference system. e.g. easting, northing, time
MD_ReferenceSystemTypeCode_compoundProjectedVertical | compound spatial reference system containing a horizontal projected coordinate reference system and a vertical coordinate reference system. e.g. easting, northing, [gravity-related] height or depth
MD_ReferenceSystemTypeCode_compoundProjectedVerticalTemporal | compound spatio-temporal coordinate reference system containing a projected horizontal, a vertical, and a temporal coordinate reference system. e.g. easting, northing, height, time
MD_ReferenceSystemTypeCode_engineering | coordinate reference system based on an engineering datum (datum describing the relationship of a coordinate system to a local reference). e.g. [local] x,y
MD_ReferenceSystemTypeCode_engineeringDesign | engineering coordinate reference system in which the base representation of a moving object is specified. e.g. [local] x,y
MD_ReferenceSystemTypeCode_engineeringImage | coordinate reference system based on an image datum (engineering datum which defines the relationship of a coordinate system to an image). e.g. row, column
MD_ReferenceSystemTypeCode_geodeticGeocentric | geodetic CRS having a Cartesian 3D coordinate system. e.g. [geocentric] X,Y,Z
MD_ReferenceSystemTypeCode_geodeticGeographic2D | geodetic CRS having an ellipsoidal 2D coordinate system. e.g. latitude, longitude
MD_ReferenceSystemTypeCode_geodeticGeographic3D | geodetic CRS having an ellipsoidal 3D coordinate system. e.g. latitude, longitude, ellipsoidal height
MD_ReferenceSystemTypeCode_geographicIdentifier | spatial reference in the form of a label or code that identifies a location. e.g. post code
MD_ReferenceSystemTypeCode_linear | set of Linear Referencing Methods and the policies, records and procedures for implementing them. reference system that identifies a location by reference to a segment of a linear geographic feature and distance along that segment from a given point. e.g. x km along road
MD_ReferenceSystemTypeCode_parametric | coordinate reference system based on a parametric datum (datum describing the relationship of a parametric coordinate system to an object). e.g. pressure
MD_ReferenceSystemTypeCode_projected | coordinate reference system derived from a two-dimensional geodetic coordinate reference system by applying a map projection. e.g. easting, northing
MD_ReferenceSystemTypeCode_temporal | reference system against which time is measured. e.g. time
MD_ReferenceSystemTypeCode_vertical | one-dimensional coordinate reference system based on a vertical datum (datum describing the relation of gravity-related heights or depths to the Earth). e.g. [gravity-related] height or depth

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## MD_RestrictionCode ( MD_RestrictionCode ):

Description: limitation(s) placed upon the access or use of the data

Entry | Definition
--- | ---
MD_RestrictionCode_copyright | exclusive right to the publication, production, or sale of the rights to a literary, dramatic, musical, or artistic work, or to the use of a commercial print or label, granted by law for a specified period of time to an author, composer, artist, distributor
MD_RestrictionCode_patent | government has granted exclusive right to make, sell, use or license an invention or discovery
MD_RestrictionCode_patentPending | produced or sold information awaiting a patent
MD_RestrictionCode_trademark | a name, symbol, or other device identifying a product, officially registered and legally restricted to the use of the owner or manufacturer
MD_RestrictionCode_licence | formal permission to do something
MD_RestrictionCode_intellectualPropertyRights | rights to financial benefit from and control of distribution of non-tangible property that is a result of creativity
MD_RestrictionCode_restricted | withheld from general circulation or disclosure
MD_RestrictionCode_otherRestrictions | limitation not listed
MD_RestrictionCode_unrestricted | no constraints exist
MD_RestrictionCode_licenceUnrestricted | formal permission not required to use the resource
MD_RestrictionCode_licenceEndUser | formal permission required for a person or an entity to use the resource and that may differ from the person that orders or purchases it
MD_RestrictionCode_licenceDistributor | formal permission required for a person or an entity to commercialize or distribute the resource
MD_RestrictionCode_private | protects rights of individual or organisations from observation, intrusion, or attention of others
MD_RestrictionCode_statutory | prescribed by law
MD_RestrictionCode_confidential | not available to the public contains information that could be prejudicial to a commercial, industrial, or national interest
MD_RestrictionCode_SBU | although unclassified, requires strict controls over its distribution.
MD_RestrictionCode_in-confidence | with trust

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## MD_ScopeCode ( MD_ScopeCode ):

Description: class of information to which the referencing entity applies

Entry | Definition
--- | ---
MD_ScopeCode_attribute | information applies to the attribute value
MD_ScopeCode_attributeType | information applies to the characteristic of a feature
MD_ScopeCode_collectionHardware | information applies to the collection hardware class
MD_ScopeCode_collectionSession | information applies to the collection session
MD_ScopeCode_dataset | information applies to the dataset
MD_ScopeCode_series | information applies to the series
MD_ScopeCode_nonGeographicDataset | information applies to non-geographic data
MD_ScopeCode_dimensionGroup | information applies to a dimension group
MD_ScopeCode_feature | information applies to a feature
MD_ScopeCode_featureType | information applies to a feature type
MD_ScopeCode_propertyType | information applies to a property type
MD_ScopeCode_fieldSession | information applies to a field session
MD_ScopeCode_software | information applies to a computer program or routine
MD_ScopeCode_service | information applies to a capability which a service provider entity makes available to a service user entity through a set of interfaces that define a behaviour, such as a use case
MD_ScopeCode_model | information applies to a copy or imitation of an existing or hypothetical object
MD_ScopeCode_tile | information applies to a tile, a spatial subset of geographic data
MD_ScopeCode_metadata | information applies to metadata
MD_ScopeCode_initiative | information applies to an initiative
MD_ScopeCode_sample | information applies to a sample
MD_ScopeCode_document | information applies to a document
MD_ScopeCode_repository | information applies to a repository
MD_ScopeCode_aggregate | information applies to an aggregate resource
MD_ScopeCode_product | metadata describing an ISO 19131 data product specification
MD_ScopeCode_collection | information applies to an unstructured set
MD_ScopeCode_coverage | information applies to a coverage
MD_ScopeCode_application | information resource hosted on a specific set of hardware and accessible over a network

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## MD_SpatialRepresentationTypeCode ( MD_SpatialRepresentationTypeCode ):

Description: method used to represent geographic information in the resource

Entry | Definition
--- | ---
MD_SpatialRepresentationTypeCode_vector | vector data are used to represent geographic data
MD_SpatialRepresentationTypeCode_grid | grid data are used to represent geographic data
MD_SpatialRepresentationTypeCode_textTable | textual or tabular data are used to represent geographic data
MD_SpatialRepresentationTypeCode_tin | triangulated irregular network
MD_SpatialRepresentationTypeCode_stereoModel | three-dimensional view formed by the intersecting homologous rays of an overlapping pair of images
MD_SpatialRepresentationTypeCode_video | scene from a video recording

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## MD_TopicCategoryCode ( MD_TopicCategoryCode ):

Description: high-level geographic data thematic classification to assist in the grouping and search of available geographic data sets. Can be used to group keywords as well. Listed examples are not exhaustive. NOTE: It is understood there are overlaps between general categories and the user is encouraged to select the one most appropriate.

Entry | Definition
--- | ---
MD_TopicCategoryCode_farming | rearing of animals and/or cultivation of plants. Examples: agriculture, irrigation, aquaculture, plantations, herding, pests and diseases affecting crops and livestock
MD_TopicCategoryCode_biota | flora and/or fauna in natural environment. Examples: wildlife, vegetation, biological sciences, ecology, wilderness, sealife, wetlands, habitat
MD_TopicCategoryCode_boundaries | legal land descriptions, maritime boundaries. Examples: political and administrative boundaries, territorial seas, EEZ, port security zones
MD_TopicCategoryCode_climatologyMeteorologyAtmosphere | processes and phenomena of the atmosphere. Examples: cloud cover, weather, climate, atmospheric conditions, climate change, precipitation
MD_TopicCategoryCode_economy | economic activities, conditions and employment. Examples: production, labour, revenue, commerce, industry, tourism and ecotourism, forestry, fisheries, commercial or subsistence hunting, exploration and exploitation of resources such as minerals, oil and gas
MD_TopicCategoryCode_elevation | height above or below a vertical datum. Examples: altitude, bathymetry, digital elevation models, slope, derived products
MD_TopicCategoryCode_environment | environmental resources, protection and conservation. Examples: environmental pollution, waste storage and treatment, environmental impact assessment, monitoring environmental risk, nature reserves, landscape
MD_TopicCategoryCode_geoscientificInformation | information pertaining to earth sciences. Examples: geophysical features and processes, geology, minerals, sciences dealing with the composition, structure and origin of the earth's rocks, risks of earthquakes, volcanic activity, landslides, gravity information, soils, permafrost, hydrogeology, erosion
MD_TopicCategoryCode_health | health, health services, human ecology, and safety. Examples: disease and illness, factors affecting health, hygiene, substance abuse, mental and physical health, health services
MD_TopicCategoryCode_imageryBaseMapsEarthCover | base maps. Examples: land cover, topographic maps, imagery, unclassified images, annotations
MD_TopicCategoryCode_intelligenceMilitary | military bases, structures, activities. Examples: barracks, training grounds, military transportation, information collection
MD_TopicCategoryCode_inlandWaters | inland water features, drainage systems and their characteristics. Examples: rivers and glaciers, salt lakes, water utilization plans, dams, currents, floods, water quality, hydrologic information
MD_TopicCategoryCode_location | positional information and services. Examples: addresses, geodetic networks, control points, postal zones and services, place names
MD_TopicCategoryCode_oceans | features and characteristics of salt water bodies (excluding inland waters) Examples: tides, tsunamis, coastal information, reefs
MD_TopicCategoryCode_planningCadastre | information used for appropriate actions for future use of the land. Examples: land use maps, zoning maps, cadastral surveys, land ownership
MD_TopicCategoryCode_society | characteristics of society and cultures. Examples: settlements, anthropology, archaeology, education, traditional beliefs, manners and customs, demographic data, recreational areas and activities, social impact assessments, crime and justice, census information
MD_TopicCategoryCode_structure | man-made construction. Examples: buildings, museums, churches, factories, housing, monuments, shops, towers
MD_TopicCategoryCode_transportation | means and aids for conveying persons and/or goods. Examples: roads, airports/airstrips, shipping routes, tunnels, nautical charts, vehicle or vessel location, aeronautical charts, railways
MD_TopicCategoryCode_utilitiesCommunication | energy, water and waste systems and communications infrastructure and services. Examples: hydroelectricity, geothermal, solar and nuclear sources of energy, water purification and distribution, sewage collection and disposal, electricity and gas distribution, data communication, telecommunication, radio, communication networks
MD_TopicCategoryCode_extraTerrestrial | region more than 100 km above the surface of the Earth
MD_TopicCategoryCode_disaster | Information related to disasters. Examples: site of the disaster, evacuation zone, disaster-prevention facility, disaster relief activities

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## MD_TopologyLevelCode ( MD_TopologyLevelCode ):

Description: degree of complexity of the spatial relationships

Entry | Definition
--- | ---
MD_TopologyLevelCode_geometryOnly | geometry objects without any additional structure which describes topology
MD_TopologyLevelCode_topology1D | 1-dimensional topological complex; commonly called 'chain-node' topology
MD_TopologyLevelCode_planarGraph | 1-dimensional topological complex that is planar. (A planar graph is a graph that can be drawn in a plane in such a way that no two edges intersect except at a vertex.)
MD_TopologyLevelCode_fullPlanarGraph | 2-dimensional topological complex that is planar. (A 2-dimensional topological complex is commonly called 'full topology' in a cartographic 2D environment.)
MD_TopologyLevelCode_surfaceGraph | 1-dimensional topological complex that is isomorphic to a subset of a surface. (A geometric complex is isomorphic to a topological complex if their elements are in a one-to-one, dimensional-and boundary-preserving correspondence to one another.)
MD_TopologyLevelCode_fullSurfaceGraph | 2-dimensional topological complex that is isomorphic to a subset of a surface
MD_TopologyLevelCode_topology3D | 3-dimensional topological complex. (A topological complex is a collection of topological primitives that are closed under the boundary operations.)
MD_TopologyLevelCode_fullTopology3D | complete coverage of a 3D Euclidean coordinate space
MD_TopologyLevelCode_abstract | topological complex without any specified geometric realisation

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## SV_CouplingType ( SV_CouplingType ):

Description: class of information to which the referencing entity applies

Entry | Definition
--- | ---
SV_CouplingType_loose | service instance is loosely coupled with a data instance, i.e. no MD_DataIdentification class has to be described
SV_CouplingType_mixed | service instance is mixed coupled with a data instance, i.e. MD_DataIdentification describes the associated data instance and additionally the service instance might work with other external data instances
SV_CouplingType_tight | service instance is tightly coupled with a data instance, i.e. MD_DataIdentification class MUST be described

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## SV_ParameterDirection ( SV_ParameterDirection ):

Description: class of information to which the referencing entity applies

Entry | Definition
--- | ---
SV_ParameterDirection_in | the parameter is an input parameter to the service instance
SV_ParameterDirection_out | the parameter is an output parameter to the service instance
SV_ParameterDirection_inout | the parameter is both an input and output parameter to the service instance

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