ISO 19115-1 Codelists
Codelists for description of metadata datasets compliant with ISO/TC 211 19115-1.
Codelists used in ISO 19115-3 metadata records
1.1
2017-09-10
CI_DateTypeCode
identification of when a given event occurred
creation
date identifies when the resource was brought into existence
publication
date identifies when the resource was issued
revision
date identifies when the resource was examined or re-examined and improved or amended
expiry
date identifies when resource expires
lastUpdate
date identifies when resource was last updated
lastRevision
date identifies when resource was last reviewed
nextUpdate
date identifies when resource will be next updated
unavailable
date identifies when resource became not available or obtainable
inForce
date identifies when resource became in force
adopted
date identifies when resource was adopted
deprecated
date identifies when resource was deprecated
superseded
date identifies when resource was superseded or replaced by another resource
validityBegins
time at which the data are considered to become valid. NOTE: There could be quite a delay between creation and validity begins
validityExpires
time at which the data are no longer considered to be valid
released
the date that the resource shall be released for public access
distribution
date identifies when an instance of the resource was distributed
CI_OnLineFunctionCode
function performed by the resource
download
online instructions for transferring data from one storage device or system to another
information
online information about the resource
offlineAccess
online instructions for requesting the resource from the provider
order
online order process for obtaining the resource
search
online search interface for seeking out information about the resource
completeMetadata
complete metadata provided
browseGraphic
browse graphic provided
upload
online resource upload capability provided
emailService
online email service provided
browsing
online browsing provided
fileAccess
online file access provided
CI_PresentationFormCode
mode in which the data are represented
documentDigital
digital representation of a primarily textual item (can contain illustrations also)
documentHardcopy
representation of a primarily textual item (can contain illustrations also) on paper, photographic material, or other media
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
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
mapDigital
map represented in raster or vector form
mapHardcopy
map printed on paper, photographic material, or other media for use directly by the human user
modelDigital
multi-dimensional digital representation of a feature, process, etc.
modelHardcopy
3-dimensional, physical model
profileDigital
vertical cross-section in digital form
profileHardcopy
vertical cross-section printed on paper, etc.
tableDigital
digital representation of facts or figures systematically displayed, especially in columns
tableHardcopy
representation of facts or figures systematically displayed, especially in columns, printed on paper, photographic material, or other media
videoDigital
digital video recording
videoHardcopy
video recording on film
audioDigital
digital audio recording
audioHardcopy
audio recording delivered by analog media, such as a magnetic tape
multimediaDigital
information representation using simultaneously various digital modes for text, sound, image
multimediaHardcopy
information representation using simultaneously various analog modes for text, sound, image
physicalSample
a physical object, e.g. Rock or mineral sample, microscope slide
diagramDigital
information represented graphically by charts such as pie chart, bar chart, and other type of diagrams and recorded in digital format
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
CI_RoleCode
function performed by the responsible party
resourceProvider
party that supplies the resource
custodian
party that accepts accountability and responsibility for the resource and ensures appropriate care and maintenance of the resource
owner
party that owns the resource
user
party who uses the resource
distributor
party who distributes the resource
originator
party who created the resource
pointOfContact
party who can be contacted for acquiring knowledge about or acquisition of the resource
principalInvestigator
key party responsible for gathering information and conducting research
processor
party who has processed the data in a manner such that the resource has been modified
publisher
party who published the resource
author
party who authored the resource
coAuthor
party who jointly authors the resource
collaborator
party who assists with the generation of the resource other than the principal investigator
editor
party who reviewed or modified the resource to improve the content
mediator
a class of entity that mediates access to the resource and for whom the resource is intended or useful
rightsHolder
party owning or managing rights over the resource
contributor
party contributing to the resource
funder
party providing monetary support for the resource
stakeholder
party who has an interest in the resource or the use of the resource
CI_TelephoneTypeCode
type of telephone
voice
telephone provides voice service
fax
telephone provides facsimile service
sms
telephone provides sms service
DS_AssociationTypeCode
justification for the correlation of two resources
crossReference
reference from one resource to another
largerWorkCitation
reference to a master resource of which this one is a part
partOfSeamlessDatabase
part of same structured set of data held in a computer
stereoMate
part of a set of imagery that when used together, provides three-dimensional images
isComposedOf
reference to resources that are parts of this resource
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
series
associated through a common heritage such as produced to a common product specification
dependency
associated through a dependency
revisionOf
resource is a revision of associated resource
DCPList
class of information to which the referencing entity applies
XML
Extensible Markup Language
CORBA
Common Object Request Broker Architecture
JAVA
Object-oriented programming language
COM
Component Object Model
SQL
Structured Query Language
SOAP
Simple Object Access Protocol
Z3950
ISO 23950
HTTP
HyperText Transfer Protocol
FTP
File Transfer Protocol
WebServices
Web service
DS_InitiativeTypeCode
type of aggregation activity in which resources are related
campaign
series of organized planned actions
collection
accumulation of resources assembled for a specific purpose
exercise
specific performance of a function or group of functions
experiment
process designed to find if something is effective or valid
investigation
search or systematic inquiry
mission
specific operation of a data collection system
sensor
device or piece of equipment which detects or records
operation
action that is part of a series of actions
platform
vehicle or other support base that holds a sensor
process
method of doing something involving a number of steps
program
specific planned activity
project
organized undertaking, research, or development
study
examination or investigation
task
piece of work
trial
process of testing to discover or demonstrate something
MD_CellGeometryCode
code indicating the geometry represented by the grid cell value
point
each cell represents a point
area
each cell represents an area
voxel
each cell represents a volumetric measurement on a regular grid in three dimensional space
stratum
height range for a single point vertical profile
MD_ClassificationCode
name of the handling restrictions on the resource
unclassified
available for general disclosure
restricted
not for general disclosure
confidential
available for someone who can be entrusted with information
secret
kept or meant to be kept private, unknown, or hidden from all but a select group of people
topSecret
of the highest secrecy
SBU
although unclassified, requires strict controls over its distribution
forOfficialUseOnly
unclassified information that is to be used only for official purposes determined by the designating body
protected
compromise of the information could cause damage
limitedDistribution
desimination limited by designating body
MD_CoverageContentTypeCode
specific type of information represented in the cell
image
meaningful numerical representation of a physical parameter that is not the actual value of the physical parameter
thematicClassification
code value with no quantitative meaning, used to represent a physical quantity
physicalMeasurement
value in physical units of the quantity being measured
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).
qualityInformation
data used to characterize the quality of the physicalMeasurement coverages in the dataset. Typically included in a gmi:QE_CoverageResult.
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).
modelResult
resources with values that are calculated using a model rather than being observed or calculated from observations.
coordinate
data used to provide coordinate axis values
MD_DatatypeCode
datatype of element or entity
class
descriptor of a set of objects that share the same attributes, operations, methods, relationships, and behaviour
codelist
flexible enumeration useful for expressing a long list of values, can be extended
enumeration
data type whose instances form a list of named literal values, not extendable
codelistElement
permissible value for a codelist or enumeration
abstractClass
class that cannot be directly instantiated
aggregateClass
class that is composed of classes it is connected to by an aggregate relationship
specifiedClass
subclass that may be substituted for its superclass
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
interfaceClass
named set of operations that characterize the behaviour of an element
unionClass
class describing a selection of one of the specified types
metaClass
class whose instances are classes
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
characterString
textual information
integer
numerical field
association
semantic relationship between two classes that involves connections among their instances
MD_DimensionNameTypeCode
name of the dimension
row
ordinate (y) axis
column
abscissa (x) axis
vertical
vertical (z) axis
track
along the direction of motion of the scan point
crossTrack
perpendicular to the direction of motion of the scan point
line
scan line of a sensor
sample
element along a scan line
time
duration
MD_GeometricObjectTypeCode
name of point or vector objects used to locate zero-, one-, two-, or three-dimensional spatial locations in the dataset
complex
set of geometric primitives such that their boundaries can be represented as a union of other primitives
composite
connected set of curves, solids or surfaces
curve
bounded, 1-dimensional geometric primitive, representing the continuous image of a line
point
zero-dimensional geometric primitive, representing a position but not having an extent
solid
bounded, connected 3-dimensional geometric primitive, representing the continuous image of a region of space
surface
bounded, connected 2-dimensional geometric primitive, representing the continuous image of a region of a plane
MD_ImagingConditionCode
code which indicates conditions which may affect the image
blurredImage
portion of the image is blurred
cloud
portion of the image is partially obscured by cloud cover
degradingObliquity
acute angle between the plane of the ecliptic (the plane of the Earth s orbit) and the plane of the celestial equator
fog
portion of the image is partially obscured by fog
heavySmokeOrDust
portion of the image is partially obscured by heavy smoke or dust
night
image was taken at night
rain
image was taken during rainfall
semiDarkness
image was taken during semi-dark conditions; twilight conditions
shadow
portion of the image is obscured by shadow
snow
portion of the image is obscured by snow
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
MD_KeywordTypeCode
methods used to group similar keywords
discipline
keyword identifies a branch of instruction or specialized learning
place
keyword identifies a location
stratum
keyword identifies the layer(s) of any deposited substance or levels within an ordered system
temporal
keyword identifies a time period related to the resource
theme
keyword identifies a particular subject or topic
dataCentre
keyword identifies a repository or archive that manages and distributes data
featureType
keyword identifies a resource containing or about a collection of feature instances with common characteristics
instrument
keyword identifies a device used to measure or compare physical properties
platform
keyword identifies a structure upon which an instrument is mounted
process
keyword identifies a series of actions or natural occurrences
project
keyword identifies an endeavour undertaken to create or modify a product or service
service
keyword identifies an activity carried out by one party for the benefit of another
product
keyword identifies a type of product
subTopicCategory
refinement of a topic category for the purpose of geographic data classification
taxon
keyword identifies a taxonomy of the resource
MD_MaintenanceFrequencyCode
frequency with which modifications and deletions are made to the data after it is first produced
continual
resource is repeatedly and frequently updated
daily
resource is updated each day
weekly
resource is updated on a weekly basis
fortnightly
resource is updated every two weeks
monthly
resource is updated each month
quarterly
resource is updated every three months
biannually
resource is updated twice each year
annually
resource is updated every year
asNeeded
resource is updated as deemed necessary
irregular
resource is updated in intervals that are uneven in duration
notPlanned
there are no plans to update the data
unknown
frequency of maintenance for the data is not known
periodic
resource is updated at regular intervals
semimonthly
resource updated twice a monthly
biennially
resource is updated every 2 years
MD_MediumFormatCode
method used to write to the medium
cpio
Copy In / Out (UNIX file format and command)
tar
Tape Archive
highSierra
high sierra file system
iso9660
information processing volume and file structure of CD-ROM
iso9660RockRidge
rock ridge interchange protocol (UNIX)
iso9660AppleHFS
hierarchical file system (Macintosh)
udf
universal disk format
MD_ObligationCode
obligation of the element or entity
mandatory
element is always required
optional
element is not required
conditional
element is required when a specific condition is met
MD_PixelOrientationCode
point in a pixel corresponding to the Earth location of the pixel
center
point halfway between the lower left and the upper right of the pixel
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
lowerRight
next corner counterclockwise from the lower left
upperRight
next corner counterclockwise from the lower right
upperLeft
next corner counterclockwise from the upper right
MD_ProgressCode
status of the resource
completed
has been completed
historicalArchive
stored in an offline storage facility
obsolete
no longer relevant
onGoing
continually being updated
planned
fixed date has been established upon or by which the resource will be created or updated
required
needs to be generated or updated
underDevelopment
currently in the process of being created
final
progress concluded and no changes will be accepted
pending
committed to, but not yet addressed
retired
item is no longer recommended for use. It has not been superseded by another item
superseded
replaced by new
tentative
provisional changes likely before resource becomes final or complete
valid
acceptable under specific conditions
accepted
agreed to by sponsor
notAccepted
rejected by sponsor
withdrawn
removed from consideration
proposed
suggested that development needs to be undertaken
deprecated
resource superseded and will become obsolete, use only for historical purposes
MD_ReferenceSystemTypeCode
defines type of reference system used
compoundEngineeringParametric
compound statio-parametric coordinate reference system containing an engineering coordinate reference system and a parametric reference system. e.g. [local] x, y, pressure
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
compoundEngineeringTemporal
compound spatio-temporal coordinate reference system containing an engineering and a temporal coordinate reference system. e.g. [local] x, y, time
compoundEngineeringVertical
compound spatial reference system containing a horizontal engineering coordinate reference system and a vertical coordinate reference system. e.g. [local] x, y, height
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
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
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
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
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
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
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
compoundProjected2DParametric
compound statio-parametric coordinate reference system containing a projected horizontal coordinate reference system and a parametric reference system. e.g. easting, northing, density
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
compoundProjectedTemporal
compound spatio-temporal coordinate reference system containing a projected horizontal and a temporal coordinate reference system. e.g. easting, northing, time
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
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
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
engineeringDesign
engineering coordinate reference system in which the base representation of a moving object is specified. e.g. [local] x,y
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
geodeticGeocentric
geodetic CRS having a Cartesian 3D coordinate system. e.g. [geocentric] X,Y,Z
geodeticGeographic2D
geodetic CRS having an ellipsoidal 2D coordinate system. e.g. latitude, longitude
geodeticGeographic3D
geodetic CRS having an ellipsoidal 3D coordinate system. e.g. latitude, longitude, ellipsoidal height
geographicIdentifier
spatial reference in the form of a label or code that identifies a location. e.g. post code
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
parametric
coordinate reference system based on a parametric datum (datum describing the relationship of a parametric coordinate system to an object). e.g. pressure
projected
coordinate reference system derived from a two-dimensional geodetic coordinate reference system by applying a map projection. e.g. easting, northing
temporal
reference system against which time is measured. e.g. time
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
MD_RestrictionCode
limitation(s) placed upon the access or use of the data
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
patent
government has granted exclusive right to make, sell, use or license an invention or discovery
patentPending
produced or sold information awaiting a patent
trademark
a name, symbol, or other device identifying a product, officially registered and legally restricted to the use of the owner or manufacturer
licence
formal permission to do something
intellectualPropertyRights
rights to financial benefit from and control of distribution of non-tangible property that is a result of creativity
restricted
withheld from general circulation or disclosure
otherRestrictions
limitation not listed
unrestricted
no constraints exist
licenceUnrestricted
formal permission not required to use the resource
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
licenceDistributor
formal permission required for a person or an entity to commercialize or distribute the resource
private
protects rights of individual or organisations from observation, intrusion, or attention of others
statutory
prescribed by law
confidential
not available to the public contains information that could be prejudicial to a commercial, industrial, or national interest
SBU
although unclassified, requires strict controls over its distribution.
in-confidence
with trust
MD_ScopeCode
class of information to which the referencing entity applies
attribute
information applies to the attribute value
attributeType
information applies to the characteristic of a feature
collectionHardware
information applies to the collection hardware class
collectionSession
information applies to the collection session
dataset
information applies to the dataset
series
information applies to the series
nonGeographicDataset
information applies to non-geographic data
dimensionGroup
information applies to a dimension group
feature
information applies to a feature
featureType
information applies to a feature type
propertyType
information applies to a property type
fieldSession
information applies to a field session
software
information applies to a computer program or routine
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
model
information applies to a copy or imitation of an existing or hypothetical object
tile
information applies to a tile, a spatial subset of geographic data
metadata
information applies to metadata
initiative
information applies to an initiative
sample
information applies to a sample
document
information applies to a document
repository
information applies to a repository
aggregate
information applies to an aggregate resource
product
metadata describing an ISO 19131 data product specification
collection
information applies to an unstructured set
coverage
information applies to a coverage
application
information resource hosted on a specific set of hardware and accessible over a network
MD_SpatialRepresentationTypeCode
method used to represent geographic information in the resource
vector
vector data are used to represent geographic data
grid
grid data are used to represent geographic data
textTable
textual or tabular data are used to represent geographic data
tin
triangulated irregular network
stereoModel
three-dimensional view formed by the intersecting homologous rays of an overlapping pair of images
video
scene from a video recording
MD_TopicCategoryCode
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.
farming
rearing of animals and/or cultivation of plants. Examples: agriculture, irrigation, aquaculture, plantations, herding, pests and diseases affecting crops and livestock
biota
flora and/or fauna in natural environment. Examples: wildlife, vegetation, biological sciences, ecology, wilderness, sealife, wetlands, habitat
boundaries
legal land descriptions, maritime boundaries. Examples: political and administrative boundaries, territorial seas, EEZ, port security zones
climatologyMeteorologyAtmosphere
processes and phenomena of the atmosphere. Examples: cloud cover, weather, climate, atmospheric conditions, climate change, precipitation
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
elevation
height above or below a vertical datum. Examples: altitude, bathymetry, digital elevation models, slope, derived products
environment
environmental resources, protection and conservation. Examples: environmental pollution, waste storage and treatment, environmental impact assessment, monitoring environmental risk, nature reserves, landscape
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
health
health, health services, human ecology, and safety. Examples: disease and illness, factors affecting health, hygiene, substance abuse, mental and physical health, health services
imageryBaseMapsEarthCover
base maps. Examples: land cover, topographic maps, imagery, unclassified images, annotations
intelligenceMilitary
military bases, structures, activities. Examples: barracks, training grounds, military transportation, information collection
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
location
positional information and services. Examples: addresses, geodetic networks, control points, postal zones and services, place names
oceans
features and characteristics of salt water bodies (excluding inland waters) Examples: tides, tsunamis, coastal information, reefs
planningCadastre
information used for appropriate actions for future use of the land. Examples: land use maps, zoning maps, cadastral surveys, land ownership
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
structure
man-made construction. Examples: buildings, museums, churches, factories, housing, monuments, shops, towers
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
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
disaster
Information related to disasters. Examples: site of the disaster, evacuation zone, disaster-prevention facility, disaster relief activities
MD_TopologyLevelCode
degree of complexity of the spatial relationships
geometryOnly
geometry objects without any additional structure which describes topology
topology1D
1-dimensional topological complex; commonly called 'chain-node' topology
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.)
fullPlanarGraph
2-dimensional topological complex that is planar. (A 2-dimensional topological complex is commonly called 'full topology' in a cartographic 2D environment.)
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.)
fullSurfaceGraph
2-dimensional topological complex that is isomorphic to a subset of a surface
topology3D
3-dimensional topological complex. (A topological complex is a collection of topological primitives that are closed under the boundary operations.)
fullTopology3D
complete coverage of a 3D Euclidean coordinate space
abstract
topological complex without any specified geometric realisation
SV_CouplingType
type of coupling between service and associated data (if exists)
loose
service instance is loosely coupled with a data instance, i.e. no MD_DataIdentification class has to be described
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
tight
service instance is tightly coupled with a data instance, i.e. MD_DataIdentification class MUST be described
SV_ParameterDirection
class of information to which the referencing entity applies
in
the parameter is an input parameter to the service instance
out
the parameter is an output parameter to the service instance
in/out
the parameter is both an input and output parameter to the service instance