EN ISO 19115-2:2010

SLOVENSKI STANDARD
01-junij-2010
Geografske informacije - Metapodatki - 2. del: Razširitev za podobe in mrežne
podatke (ISO 19115-2:2009)
Geographic information - Metadata - Part 2: Extensions for imagery and gridded data
(ISO 19115-2:2009)
Geoinformation - Metadaten - Teil 2: Erweiterungen für Bild- und Rasterdaten (ISO
19115-2:2009)
Information géographique - Métadonnées - Partie 2: Extensions pour les images et les
matrices (ISO 19115-2:2009)
Ta slovenski standard je istoveten z: EN ISO 19115-2:2010
ICS:
07.040 Astronomija. Geodezija. Astronomy. Geodesy.
Geografija Geography
35.240.70 Uporabniške rešitve IT v IT applications in science
znanosti
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 19115-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
January 2010
ICS 35.240.70
English Version
Geographic information - Metadata - Part 2: Extensions for
imagery and gridded data (ISO 19115-2:2009)
Information géographique - Métadonnées - Partie 2: Geoinformation - Metadaten - Teil 2: Erweiterungen für
Extensions pour les images et les matrices (ISO 19115- Bild- und Rasterdaten (ISO 19115-2:2009)
2:2009)
This European Standard was approved by CEN on 12 December 2009.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the CEN Management Centre or to any CEN member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the
official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2010 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 19115-2:2010: E
worldwide for CEN national Members.

Contents Page
Foreword .3

Foreword
The text of ISO 19115-2:2009 has been prepared by Technical Committee ISO/TC 211 “Geographic
information/Geomatics” of the International Organization for Standardization (ISO) and has been taken over
as EN ISO 19115-2:2010 by Technical Committee CEN/TC 287 “Geographic Information” the secretariat of
which is held by NEN.
This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by July 2010, and conflicting national standards shall be withdrawn at the
latest by July 2010.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
Endorsement notice
The text of ISO 19115-2:2009 has been approved by CEN as a EN ISO 19115-2:2010 without any
modification.
INTERNATIONAL ISO
STANDARD 19115-2
First edition
2009-02-15
Geographic information — Metadata —
Part 2:
Extensions for imagery and gridded data
Information géographique — Métadonnées —
Partie 2: Extensions pour les images et les matrices

Reference number
ISO 19115-2:2009(E)
©
ISO 2009
ISO 19115-2:2009(E)
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ii © ISO 2009 – All rights reserved

ISO 19115-2:2009(E)
Contents Page
Foreword. iv
Introduction . v
1 Scope .1
2 Conformance.1
2.1 Conformance requirements.1
2.2 Metadata profiles .1
3 Normative references .1
4 Terms and definitions .2
5 Symbols and abbreviated terms .5
5.1 Abbreviations.5
5.2 UML notations.5
5.3 UML model relationships .6
5.4 UML model stereotypes .7
6 Imagery and gridded data metadata .8
6.1 Metadata for geospatial imagery and gridded data requirement.8
6.2 Imagery and gridded data metadata packages.8
6.3 Unified Modeling Language (UML) diagrams .12
6.4 Data dictionary.12
Annex A (normative) Imagery and gridded data metadata schemas.13
Annex B (normative) Imagery and gridded data metadata data dictionary .22
Annex C (normative) Conformance.40
Bibliography .43

ISO 19115-2:2009(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 19115-2 was prepared by Technical Committee ISO/TC 211, Geographic information/Geomatics.
ISO 19115 consists of the following parts, under the general title Geographic information — Metadata:
⎯ Geographic information — Metadata
⎯ Part 2: Extensions for imagery and gridded data

iv © ISO 2009 – All rights reserved

ISO 19115-2:2009(E)
Introduction
Imagery and gridded data are important information sources and products used within a geospatial
environment by geographic information systems. The production of imagery and gridded data follows one or
more process chains that begin with remote sensing data, scanned maps, field data collection or other
sensing methods and end with the creation of the end data products. The production process needs to be
documented in order to maintain quality control over the end products. In addition, metadata about the
geometry of the measuring process and the properties of the measuring equipment need to be retained with
the raw data in order to support the production process.
Within the suite of ISO geographic information standards, ISO 19115 defines the guidelines for describing
geographic information and services. While the ISO 19115 metadata model does provide some provisions for
imagery and gridded data, the requirements were not fully developed at the time ISO 19115:2003 was drafted.
To permit the development of ISO 19115 to proceed, inclusion of metadata definitions for imagery and gridded
data was deferred until the framework for these data was more fully specified within the suite of ISO
geographic information standards. Additionally, other standards that implement metadata for imagery and
gridded data have been surveyed and are described in ISO/TR 19121.
The object of this part of ISO 19115 is to provide the additional structure to more extensively describe the
derivation of geographic imagery and gridded data. This structure is intended to augment ISO 19115.

INTERNATIONAL STANDARD ISO 19115-2:2009(E)

Geographic information — Metadata —
Part 2:
Extensions for imagery and gridded data
1 Scope
This part of ISO 19115 extends the existing geographic metadata standard by defining the schema required
for describing imagery and gridded data. It provides information about the properties of the measuring
equipment used to acquire the data, the geometry of the measuring process employed by the equipment, and
the production process used to digitize the raw data. This extension deals with metadata needed to describe
the derivation of geographic information from raw data, including the properties of the measuring system, and
the numerical methods and computational procedures used in the derivation. The metadata required to
address coverage data in general is addressed sufficiently in the general part of ISO 19115.
2 Conformance
2.1 Conformance requirements
Metadata shall be provided as specified in Clause 6 and Annexes A and B of this part of ISO 19115 and
ISO 19115:2003, Clause 6 and Annexes A and B.
User-defined metadata extensions to this part of ISO 19115 shall be defined and provided as specified in
ISO 19115:2003, Annex C.
Any metadata claiming conformance with this part of ISO 19115 shall pass the requirements described in
Annex C of this part of ISO 19115 and the abstract test suite presented in ISO 19115:2003, Annex D.
2.2 Metadata profiles
Any profile conforming to this part of ISO 19115 shall conform to the rules for creating a profile given in
ISO 19115:2003, C.6.
3 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ISO/TS 19103:2005, Geographic information — Conceptual schema language
ISO 19107:2003, Geographic information — Spatial schema
ISO 19115:2003, Geographic information — Metadata
ISO/TS 19139:2007, Geographic information — Metadata — XML schema implementation
ISO 19115-2:2009(E)
4 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 19115:2003 and the following apply.
4.1
attribute
named property of an entity
[ISO/IEC 2382-17:1999]
NOTE Describes a geometrical, topological, thematic, or other characteristic of an entity.
4.2
band
range of wavelengths of electromagnetic radiation that produce a single response by a sensing device
[ISO/TS 19101-2:2008]
4.3
class
description of a set of objects that share the same attributes, operations, methods, relationships, and
semantics
[ISO/TS 19103:2005]
4.4
coverage
feature that acts as a function to return values from its range for any direct position within its spatial, temporal
or spatiotemporal domain
[ISO 19123:2005]
EXAMPLE Examples include a raster image, polygon overlay, or digital elevation matrix
4.5
data
reinterpretable representation of information in a formalised manner suitable for communication, interpretation,
or processing
[ISO/IEC 2382-1:1993]
4.6
data type
specification of a value domain with operations allowed on values in this domain
[ISO/TS 19103:2005]
4.7
dataset
identifiable collection of data
[ISO 19115:2003]
4.8
dataset series
collection of datasets sharing the same product specification
[ISO 19115:2003]
4.9
domain
well-defined set
[ISO/TS 19103:2005]
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ISO 19115-2:2009(E)
4.10
event
action which occurs at an instant
[ISO 19108:2002]
4.11
geolocation information
information used to determine geographic location corresponding to image location
4.12
georectified
corrected for positional displacement with respect to the surface of the earth
4.13
georeferencing
process of determining the relation between the position of data in the image coordinates and its geographic
or map location
4.14
grid
network composed of two or more sets of curves in which the members of each set intersect the members of
the other sets in an algorithmic way
[ISO 19123:2005]
NOTE The curves partition a space into grid cells.
4.15
grid coordinate system
coordinate system in which a position is specified relative to the intersection of curves
4.16
grid coordinates
sequence of two or more numbers specifying a position with respect to its location on a grid
4.17
gridded data
data whose attribute values are associated with positions on a grid coordinate system
4.18
ground control point
point on the earth that has an accurately known geographic position
4.19
image
gridded coverage whose attribute values are a numerical representation of a physical parameter
NOTE The physical parameters are the result of measurement by a sensor or a prediction from a model.
4.20
imagery
representation of phenomena as images produced by electronic and/or optical techniques
[ISO 19101-2:2008]
NOTE In this part of ISO 19115, it is assumed that the objects and phenomena have been sensed or detected by
camera, infrared and multispectral scanners, radar and photometers, or similar devices.
ISO 19115-2:2009(E)
4.21
metadata
data about data
[ISO 19115:2003]
4.22
pass
single instance of a remote, mobile measuring system going by a target of interest
NOTE In this part of ISO 19115, the measuring system will usually be a remote sensing platform. In a navigation
context, the measuring system might be a GPS satellite.
4.23
pixel
smallest element of a digital image to which attributes are assigned
[ISO/TS 19101-2:2008]
NOTE It is the smallest unit of display for a visible image.
4.24
platform
structure which supports a sensor, or sensors
4.25
polarization
restricting radiation, especially light, vibrations to a single plane
4.26
remote sensing
collection and interpretation of information about an object without being in physical contact with the object
4.27
resolution (of a sensor)
smallest difference between indications of a sensor that can be meaningfully distinguished
NOTE For imagery, resolution refers to radiometric, spectral, spatial and temporal resolutions.
[ISO/TS 19101-2:2008]
4.28
sensor
element of a measuring system that is directly affected by a phenomenon, body, or substance carrying a
quantity to be measured
[ISO/IEC GUIDE 99:2007)]
4.29
sensor model
description of the radiometric and geometric characteristics of a sensor
[ISO19101-2:2008]
4.30
spectral resolution
specific wavelength interval within the electromagnetic spectrum
EXAMPLE Band 1 of Landsat TM lies between 0,45 and 0,52 µm in the visible part of the spectrum.
4.31
value
element of a type domain
4 © ISO 2009 – All rights reserved

ISO 19115-2:2009(E)
[ISO/TS 19103:2005]
4.32
value domain
set of accepted values
[ISO/TS 19103:2005]
EXAMPLE The range 3-28, all integers, any ASCII character, enumeration of all accepted values (green, blue, white).
5 Symbols and abbreviated terms
5.1 Abbreviations
IDL Interface Definition Language
OCL Object Constraint Language
UML Unified Modeling Language
5.2 UML notations
The diagrams that appear in this part of ISO 19115 are presented using the Unified Modelling Language
(UML) static structure diagram with the ISO Interface Definition Language (IDL) basic type definitions and the
UML Object Constraint Language (OCL) as the conceptual schema language. The UML notations used in this
part of ISO 19115 are described in Figure 1.
Association
Aggregation
Composition
Generalization
Dependency
Figure 1 — UML notation
ISO 19115-2:2009(E)
5.3 UML model relationships
5.3.1 Associations
An association is used to describe a relationship between two or more classes. UML defines three different
types of relationships, called association, aggregation and composition. The three types have different
semantics. An ordinary association shall be used to represent a general relationship between two classes.
The aggregation and composition associations shall be used to create part-whole relationships between two
classes. The direction of an association must be specified. If the direction is not specified, it is assumed to be
a two-way association. If one-way associations are intended, the direction of the association can be marked
by an arrow at the end of the line.
An aggregation association is a relationship between two classes in which one of the classes plays the role of
container and the other plays the role of a containee.
A composition association is a strong aggregation. In a composition association, if a container object is
deleted, then all of its containee objects are deleted as well. The composition association shall be used when
the objects representing the parts of a container object cannot exist without the container object.
5.3.2 Generalization
A generalization is a relationship between a superclass and the subclasses that may be substituted for it. The
superclass is the generalized class, while the subclasses are specified classes.
5.3.3 Instantiation/Dependency
A dependency relationship shows that the client class depends on the supplier class/interface to provide
certain services, such as:
⎯ client class accesses a value (constant or variable) defined in the supplier class/interface;
⎯ operations of the client class invoke operations of the supplier class/interface;
⎯ operations of the client class have signatures whose return class or arguments are instances of the
supplier class/interface.
An instantiated relationship represents the act of substituting actual values for the parameters of a
parameterized class or parameterized class utility to create a specialized version of the more general item.
5.3.4 Roles
If an association is navigable in a particular direction, the model shall supply a “role name” that is appropriate
for the role of the target object in relation to the source object. Thus in a two-way association, two role names
will be supplied. Figure 2 represents how role names and cardinalities are expressed in UML diagrams.
6 © ISO 2009 – All rights reserved

ISO 19115-2:2009(E)
Association between classes
Association name
Class #1 Class #2
role-1 role-2
Association cardinality
1.*
Class Exactly one Class One or more
n
0.*
Class Class
Zero or more Specific number
0.1
Class Optional (zero or one)
Aggregation between classes Class inheritance (subtyping of classes)
Aggregate
Superclass
class
Component Component Component
Subclass #1 Subclass #2 Subclass #n
class #1 class #2 class #n
Figure 2 — UML roles
5.4 UML model stereotypes
A UML stereotype is an extension mechanism for existing UML concepts. It is a model element that is used to
classify (or mark) other UML elements so that they in some respect behave as if they were instances of new
virtual or pseudo metamodel classes whose form is based on existing base metamodel classes. Stereotypes
augment the classification mechanisms on the basis of the built-in UML metamodel class hierarchy. Below are
brief descriptions of the stereotypes used in this part of ISO 19115. For more detailed descriptions consult
ISO/TS 19103.
In this part of ISO 19115 the following stereotypes are used.
a) <> 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.
b) <> data type whose instances form a list of named literal values. Both the enumeration
name and its literal values are declared. Enumeration means a short list of well-understood potential
values within a class.
c) <> a descriptor of a set of values that lack identity and whose operations do not have side
effects. Datatypes include primitive pre-defined types and user-definable types. Pre-defined types include
numbers, string, and time. User-definable types include enumerations.
d) <> used to describe a more open enumeration. <> is a flexible enumeration. Code
lists are useful for expressing a long list of potential values. If the elements of the list are completely
known, an enumeration should be used; if only the likely values of the elements are known, a code list
should be used.
ISO 19115-2:2009(E)
e) <> describes a selection of one of the specified types. This is useful to specify a set of alternative
classes/types that can be used, without the need to create a common super-type/class.
f) <> class (or other classifier) that cannot be directly instantiated. UML notation for this to show
the name in italics.
g) <> class whose instances are classes. Metaclasses are typically used in the construction of
metamodels. A metaclass is an object class whose primary purpose is to hold metadata about another
class.
h) <> named set of operations that characterize the behaviour of an element.
i) <> cluster of logically related components, containing sub-packages.
j) <> package that contains definitions, without any sub-packages.
6 Imagery and gridded data metadata
6.1 Metadata for geospatial imagery and gridded data requirement
ISO 19115 identifies the metadata required to describe digital geographic data. This part of ISO 19115
extends the metadata identified in ISO 19115 and identifies the metadata required to describe digital
geospatial imagery and gridded data. ISO 19115 identifies some of the metadata for imagery and gridded data
and this part of ISO 19115 builds upon that foundation. The extended metadata shall be provided for
geographic images and gridded datasets which include the geospatial imagery and gridded data and may
optionally be provided for aggregations of datasets.
6.2 Imagery and gridded data metadata packages
6.2.1 Introduction
Figure 3 illustrates the relationships among the packages described in this part of ISO 19115 and the relevant
packages specified in ISO 19115. The ISO 19115 UML model diagrams and data dictionary for each package
are fully specified in ISO 19115. The additional metadata for geospatial imagery and gridded data is fully
specified in the UML model diagrams and data dictionary for each additional package, which is given in
Annex A and Annex B, respectively. If a discrepancy between the two annexes exists, Annex A shall be
considered authoritative.
8 © ISO 2009 – All rights reserved

ISO 19115-2:2009(E)
<>
Content information -
Imagery
<> <>
Content information Units of Measure
(from ISO 19115 Metadata) (from Derived)
<> <>
Spatial representation information Data quality information
<>
(from ISO 19115 Metadata) (from ISO 19115 Metadata)
Metadata entity set information
(from ISO 19115 Metadata)
<>
Metadata entity set -
Imagery
<>
Spatial representation information -
Imagery
<> <>
Acquisition information - Data quality information -
Imagery Imagery
Figure 3 — Metadata packages
To ensure global uniqueness of class names, ISO/TS 19103 requires that all class names be defined with a
bi-alpha prefix that identifies the package in which the class is defined. ISO 19115 uses the prefixes MD
(Metadata), CI (Citation), DQ (Data quality), EX (Extent), and LI (Lineage). To differentiate between
ISO 19115 and entities of this part of ISO 19115, this part uses different prefixes. The prefixes used are MI
(Metadata for imagery and gridded data), LE (Lineage extended) and QE (Data quality extended). Table 1
contains the list of package identifiers for the classes used in this part of this part of ISO 19115.
ISO 19115-2:2009(E)
Table 1 —UML Package Identifiers
Identifier Information Type Standard
CI Citation ISO 19115
DQ Data Quality ISO 19115
EX Extent ISO 19115
GM Geometry ISO 19107
LE Lineage Extended ISO 19115-2
LI Lineage ISO 19115
MD Metadata ISO 19115
MI Metadata for Imagery ISO 19115-2
MX Metadata — XML schema ISO/TS 19139
QE Data quality Extended ISO 19115-2

6.2.2 Package Descriptions
6.2.2.1 Metadata Entity Set — Imagery
An additional package of metadata is specified here. MI_Metadata is a specified subclass of MD_Metadata
and aggregates the optional entity MI_AcquisitionInformation. This additional package is described in A.2.1.
6.2.2.2 Data quality information — Imagery
The original data quality package is defined in ISO 19115 as a container of a general assessment of the
quality of the dataset. In addition, the package contains information about the sources and production
processes used in producing a dataset, which is of particular importance for imagery and gridded data. The
data quality packages specified in this part of ISO 19115 add the following classes to those specified in
ISO 19115:
⎯ QE_CoverageResult is a specified subclass of DQ_Result and aggregates information required to report
data quality for a coverage. From ISO 19115, the classes MD_SpatialRepresentation,
MD_CoverageDescription, and MD_Format are aggregated as a description of the coverage data quality
result. In addition, an association with MX_DataFile (defined in ISO/TS 19139) provides a means to
identify a complete report of the quality of the coverage;
⎯ QE_Usability is a specified subclass of DQ_Element used to provide user specific quality information
about a dataset’s suitability for a particular application;
⎯ LE_ProcessStep is a specified subclass of LI_ProcessStep and contains additional information on the
history of the algorithms used and processing performed to produce the data. LE_ProcessStep
aggregates the following entities;
⎯ LE_Processing, describes the procedure (such as software used, parameters, and processing
documentation) by which the algorithm is applied to generate the data from the source data.
LE_Processing aggregates LE_Algorithm, which describes the methodology used to derive the data
from the source data;
⎯ LE_ProcessStepReport identifies external information describing the processing of the data;
⎯ LE_Source, is a specified subclass of LI_Source and describes the output of a process step.
10 © ISO 2009 – All rights reserved

ISO 19115-2:2009(E)
6.2.2.3 Spatial representation information — Imagery
The spatial representation package contains information concerning the mechanisms used to represent
spatial information. MI_GeoreferencingDescription is a specified subclass of MD_Georeferenceable that
contains additional information used to support georectification of the data. MI_GeoreferencingDescription is
an aggregation of the following entities:
⎯ MI_Georectified is a specified subclass of MD_Georectified that contains check point information to
further specify georectification details of the imagery or gridded data. MI_Georectified aggregates
MI_GCP;
⎯ MI_Georeferenceable is a specified subclass of MD_Georeferenceable that includes additional
information that can be used to geolocate the data. MI_Georeferenceable aggregates
MI_GeolocationInformation.
6.2.2.4 Content information — Imagery
The package content information is defined in ISO 19115 and describes the content of a coverage dataset.
This part of ISO 19115 expands it:
⎯ MI_Band is a specified subclass of MD_Band defining additional attributes for specifying properties of
individual wavelength bands in an imagery and gridded dataset;
⎯ MI_ImageDescription is a specified subclass of MD_ImageDescription used to aggregate
MI_RangeElementDescription;
⎯ MI_CoverageDescription is a specified subclass of MD_CoverageDescription used to aggregate
MI_RangeElementDescription;
⎯ MI_RangeElementDescription provides identification of the range elements used in a coverage dataset.
6.2.2.5 Acquisition Information — Imagery
This package is particular to this part of ISO 19115 and provides details specific to the acquisition of imagery
and gridded data. MI_AcquisitionInformation is an aggregate of the following entities:
⎯ MI_Instrument, designations of the measuring instruments used to acquire the data;
⎯ MI_Operation, designations of the overall data gathering program to which the data contribute;
⎯ MI_Platform, designations of the platform from which the data were taken;
⎯ MI_Objective, the characteristics and geometry of the intended object to be observed;
⎯ MI_Requirement, the user requirements used to derive the acquisition plan;
⎯ MI_Plan, the acquisition plan that was implemented to acquire the data.
Two additional classes are required to provide information on the acquisition of the data. These are:
⎯ MI_Event, describes a significant event that occurred during data acquisition. An event can be associated
with an operation, objective, or platform pass, and
⎯ MI_PlatformPass, identifies a particular pass made by the platform during data acquisition. A platform
pass is used to provide supporting identifying information for an event and for data acquisition of a
particular objective.
ISO 19115-2:2009(E)
6.3 Unified Modeling Language (UML) diagrams
Annex A provides the metadata schemas in the form of Unified Modeling Language (UML) class diagrams.
These diagrams illustrate the extension entities defined in this part of 19115 and augment the UML diagrams
in ISO 19115. Annex A includes the packages specified in this part of ISO 19115. When classes from
ISO 19115 are extended to meet the requirements of this part of the standard, the classes from ISO 19115
are included in the diagrams in this annex. Combined with the data dictionary in Annex B and the UML
diagrams and data dictionary in ISO 19115:2003, this part of ISO 19115 fully defines the total abstract model
for metadata.
6.4 Data dictionary
Annex B contains the element and entity definitions for the metadata schemas defined in this part of the
standard. This dictionary, in conjunction with the diagrams presented in Annex A and in combination with the
UML diagrams and data dictionary presented in ISO 19115, serves to fully define the total abstract model for
metadata.
Codelists and their values provided in this part of ISO 19115 are normative. User extensions to codelists shall
follow the rules as described in ISO 19115 and Annex C. ISO/IEC 11179-6 defines the information to be
specified, conditions to be fulfilled, and procedures to be followed for registering data elements.
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ISO 19115-2:2009(E)
Annex A
(normative)
Imagery and gridded data metadata schemas
A.1 Metadata UML models
Metadata for describing geographic data, geospatial imagery and gridded data is defined using an abstract
object model in the Unified Modeling Language (UML). The diagrams in the following subclauses provide
views, which are portions of the total abstract model for metadata. Each diagram defines the extensions for a
metadata section (UML package) of related entities, elements, data types, and code lists augmenting the
corresponding metadata section in ISO 19115. Related entities, which are defined in another diagram, are
shown with elements suppressed and the defining package specified under the entity name in parentheses.
Throughout the following models, entities may have mandatory and/or optional elements and associations. In
some cases, optional entities may have mandatory elements; those elements become mandatory only if the
optional entity is used.
Entities, elements and associations shown in light grey are defined in their entirety in ISO 19115:2003. They
are shown here for informational purposes.
A.2 Imagery and gridded data metadata package UML diagrams
A.2.1 Metadata entity set extension
Figure A.1 defines MI_Metadata. which is an extension to the MD_Metadata class. The MI_Metadata class is
used to provide information describing imagery and gridded data. The extension provided through
MI_Metadata adds an association to the MI_AcquisitionInformation class, the root class of the Acquisition
Information package. The data dictionary for this extension is given in B.2.1.
MD_Metadata
(from Metadata entity set information)
MI_Metadata
MI_AcquisitionInformation
+acquisitionInformation
(from Acquisition information - Imagery)
0.*
Figure A.1 — Metadata entity set extension
ISO 19115-2:2009(E)
A.2.2 Data quality information
A.2.2.1 Extension to data quality result to support coverage quality
Figure A.2 defines an extension required to specify the reported quality for coverage data. The additional
elements provide information about the representation of the quality result documenting the data in the
dataset. The data dictionary for this diagram is given in B.2.2.1.
DQ_ConformanceResult
(from Data quality information)
+ specification : CI_Citation
+ explanation : CharacterString
+ pass : Boolean
<>
DQ_Result
(from Data quality information)
DQ_QuantitativeResult
(from Data quality information)
+ valueType[0.1] : RecordType
MX_DataFile
+ valueUnit : UnitOfMeasure
+ errorStatistic[0.1] : CharacterString
+ value[1.*] : Record
+resultFile
QE_CoverageResult
+ spatialRepresentationType : MD_SpatialRepresentationTypeCode
+resultFormat
MD_Format
(from Distribution information)
+fileFormat
<>
+resultSpatialRepresentation
+resultContentDescription
MD_SpatialRepresentation
1 1
(from Spatial representation information)
MD_CoverageDescription
(from Content information)
Figure A.2 — Data quality result
The following specification of QE_CoverageResult is simply based on existing concepts from ISO 19115 and
ISO/TS 19139 .
⎯ The coverage result has a spatial representation which, in some cases, can be exactly the same as the
resource spatial representation or may differ (e.g. coverage result computed on a vector database or
coverage result using a sample of the resource). The construct used to describe the spatial
representation of the coverage result is the MD_SpatialRepresentation class. The
resultSpatialRepresentation property is mandatory but can be implemented as a reference to the
instance of MD_SpatialRepresentation related to the resource.
⎯ The coverage result has a content description. The construct used to describe the content of the result
coverage is MD_CoverageDescription. The resulting coverage will often be defined by the distribution of
a single attribute over the result coverage domain, but it is anticipated that the range type of the result
coverage can comprise many attributes.
14 © ISO 2009 – All rights reserved

ISO 19115-2:2009(E)
⎯ The coverage result has a format which is expressed through the MD_Format class.
⎯ The coverage result is associated to a data file containing the coverage result data. The construct used to
describe the result coverage data file is MX_DataFile (from ISO/TS 19139).
A.2.2.2 Lineage information
Figure A.3 defines the extensions required to specify the lineage of imagery and gridded data datasets. The
additional elements provide information about the processing of the raw data that was performed to produce
the data in the dataset. The data dictionary for this diagram is given in B.2.2.2.
If (count(source) + count(processStep) =0) and
(DQ_DataQuality.scope.level = 'dataset' or 'series') then
DQ_DataQuality
statement is mandatory
(from Data quality information)
+ scope : DQ_Scope
"source" role is mandatory if
LI_Lineage.statement and "processStep"
role are not documented
+lineage
"processStep" role is mandatory if
0.1
LI_Lineage.statement and "source" role are
not documented
LI_Lineage
(from Data quality information)
+ statement[0.1] : CharacterString
+processStep
+source 0.*
0.*
LI_Source
LI_ProcessStep
(from Data quality information)
(from Data quality information)
+source
+ description[0.1] : CharacterString
+ description : CharacterString
0.*
+ scaleDenominator[0.1] : MD_RepresentativeFraction
+ rationale[0.1] : CharacterString
+ sourceReferenceSystem[0.1] : MD_ReferenceSystem
0.* + dateTime[0.1] : DateTime
+ sourceCitation[0.1] : CI_Citation
+sourceStep
+ processor[0.*] : CI_ResponsibleParty
+ sourceEvent[0.*] : EX_Extent
LE_Processing
+ identifier : MD_Identifier
+processingInformation
"description" is mandatory if
+ softwareReference[0.*] : CI_Citation
"sourceExtent" is not documented
LE_ProcessStep + procedureDescription[0.1] : CharacterString
0.1
+ documentation[0.*] : CI_Citation
"sourceExtent" is mandatory if
"description" is not documented + runTimeParameters[0.1] : CharacterString
LE_Source
+output
+ processedLevel[0.1] : MD_Identifier
+report
0.* +algorithm
+ resolution[0.1] : LE_NominalResolution
0.*
0.*
If "LE_NominalResolution.scanningResolution" is used
LE_ProcessStepReport LE_Algortihm
then "LE_Source.scaleDenominator" is required
+ name : CharacterString + citation : CI_Citation
+ description[0.1] : CharacterString + description : CharacterString
<>
+ fileType[0.1] : CharacterString
LE_NominalResolution
+ scanningResolution : Distance
+ groundResolution : Distance
Figure A.3 — Data quality information lineage
ISO 19115-2:2009(E)
A.2.2.3 Extension to data quality classes and subclasses
Figure A.4 defines an extension required to provide information on the usability of a dataset. QE_Usability
provides information about the dataset indicating that it can be used in a specific user context. This data
quality measure differs from those specified in the base standard in that it provides a measure of the data
quality complementary to those in the base standard but containing a set of measures specific to a user’s
requirements. The data dictionary for this diagram is given in B.2.2.3.
<>
DQ_Element
(from Data quality information)
QE_Usability
<> <>
DQ_LogicalCompleteness
...