SIST EN ISO 19115-2:2019

Geographic information - Metadata - Part 2: Extensions for acquisition and processing (ISO 19115-2:2019)

This document extends ISO 19115-1:2014 by defining the schema required for an enhanced description
of the acquisition and processing of geographic information, including imagery. Included are the
properties of measuring systems and the numerical methods and computational procedures used to
derive geographic information from the data acquired by them. This document also provides the XML
encoding for acquisition and processing metadata thereby extending the XML schemas defined in ISO/
TS 19115-3.

Geoinformation - Metadaten - Teil 2: Erweiterungen für Bild- und Rasterdaten (ISO 19115-2:2019)

Information géographique - Métadonnées - Partie 2: Extensions pour l'acquisition et le traitement (ISO 19115-2:2019)

Geografske informacije - Metapodatki - 2. del: Razširitev za zajemanje in obdelavo geografskih informacij (ISO 19115-2:2019)

Ta dokument razširja področje uporabe standarda ISO 19115-1:2014 z opredelitvijo sheme, ki je potrebna za izboljšan opis zajemanja in obdelave geografskih informacij, vključno s posnetki. Vključene so lastnosti merilnih sistemov ter računske metode in postopki, ki se uporabljajo za pridobivanje geografskih informacij iz podatkov, zajetih z merilnimi sistemi. Ta dokument vključuje tudi kodiranje XML za zajemanje in obdelavo metapodatkov, s čimer razširja sheme XML, opredeljene v standardu ISO/TS 19115-3.

General Information

• Status: Published
• Public Enquiry End Date: 30-May-2017
• Publication Date: 09-Apr-2019
• ICS: 07.040 - Astronomy. Geodesy. Geography
• ICS: 35.240.70 - IT applications in science
• Technical Committee: GIG - Geographic information
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 26-Mar-2019
• Due Date: 31-May-2019
• Completion Date: 10-Apr-2019
• Ref Project: EN ISO 19115-2:2019 - Geographic information - Metadata - Part 2: Extensions for acquisition and processing (ISO 19115-2:2019)

Relations

• Replaces: SIST EN ISO 19115-2:2010 - Geographic information - Metadata - Part 2: Extensions for imagery and gridded data (ISO 19115-2:2009)
• Effective Date: 01-May-2019
• Amended By: SIST EN ISO 19115-2:2019/A1:2022 - Geographic information - Metadata - Part 2: Extensions for acquisition and processing - Amendment 1 (ISO 19115-2:2019/Amd 1:2022)
• Effective Date: 01-Jun-2022

Overview

SIST EN ISO 19115-2:2019 (ISO 19115-2:2019) - Geographic information - Metadata - Part 2: Extensions for acquisition and processing - specifies an extended metadata schema for describing how geographic information is acquired and processed. It augments ISO 19115-1:2014 to capture detailed information about measuring systems, sensors, numerical methods and computational procedures used to derive geographic data (including imagery and gridded data). The standard also provides an XML encoding for acquisition and processing metadata, extending the XML schemas referenced in ISO/TS 19115-3.

Key topics and technical requirements

• Extended metadata classes that build on ISO 19115-1 to record acquisition and processing lineage, geolocation and sensor/instrument properties.
• Provenance and extended lineage: structured representation of process chains from raw sensing (remote sensing, field collection, scanned maps) to final data products to support quality control and reproducibility.
• Measuring systems and sensors: metadata for instrument characteristics (e.g., MI_Instrument / MI_Sensor class specified in the revision) and geometry of the measuring process.
• Processing methods and algorithms: fields to document numerical methods, computational procedures and software used in derivation or transformation steps.
• Geolocation information: metadata to describe georeferencing, georectification and control points used to relate imagery to Earth coordinates.
• XML schema support: Annex C links the standard to XML schema implementations for ISO 19115-2, enabling machine-readable metadata exchanges (complements ISO/TS 19115-3).
• Conformance and profiles: guidance for conformance requirements and how to create metadata profiles tailored to organizational needs.

Practical applications - who uses it

• GIS data managers and metadata specialists who need to document acquisition and processing workflows.
• Remote sensing and imagery analysts documenting sensor characteristics, calibration and geolocation.
• National mapping agencies, surveyors and cadastral authorities maintaining provenance for official geospatial datasets.
• Software vendors and integrators implementing metadata catalogs and data discovery services (XML metadata exchange).
• Quality assurance teams applying ISO 19157 data quality standards in combination with acquisition metadata.

Related standards

• ISO 19115-1:2014 - Metadata fundamentals (base schema extended by Part 2)
• ISO/TS 19115-3 - XML schema for metadata (extended by ISO 19115-2’s XML encoding)
• ISO 19157:2013 - Data quality (related to lineage and quality elements)
• ISO 19103:2015 - Conceptual schema language

This standard is published as EN ISO 19115-2:2019 and adopted by national bodies (e.g., SIST in Slovenia). Use ISO 19115-2:2019 to improve metadata completeness, enable interoperable discovery of acquisition/processing details, and strengthen data reproducibility for geospatial workflows.

Standards Content (Sample)

SLOVENSKI STANDARD
01-maj-2019
Nadomešča:
SIST EN ISO 19115-2:2010
Geografske informacije - Metapodatki - 2. del: Razširitev za zajemanje in obdelavo
geografskih informacij (ISO 19115-2:2019)
Geographic information - Metadata - Part 2: Extensions for acquisition and processing
(ISO 19115-2:2019)
Geoinformation - Metadaten - Teil 2: Erweiterungen für Bild- und Rasterdaten (ISO
19115-2:2019)
Information géographique - Métadonnées - Partie 2: Extensions pour l'acquisition et le
traitement (ISO 19115-2:2019)
Ta slovenski standard je istoveten z: EN ISO 19115-2:2019
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.

EN ISO 19115-2
EUROPEAN STANDARD
NORME EUROPÉENNE
February 2019
EUROPÄISCHE NORM
ICS 35.240.70 Supersedes EN ISO 19115-2:2010
English Version
Geographic information - Metadata - Part 2: Extensions for
acquisition and processing (ISO 19115-2:2019)
Information géographique - Métadonnées - Partie 2: Geoinformation - Metadaten - Teil 2: Erweiterungen
Extensions pour l'acquisition et le traitement (ISO für Erhebung und Verarbeitung (ISO 19115-2:2019)
19115-2:2019)
This European Standard was approved by CEN on 24 February 2018.

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-CENELEC 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-CENELEC 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 19115-2:2019 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 19115-2:2019) has been prepared by Technical Committee ISO/TC 211
"Geographic information/Geomatics" in collaboration with Technical Committee CEN/TC 287
“Geographic Information” the secretariat of which is held by BSI.
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 August 2019, and conflicting national standards shall
be withdrawn at the latest by August 2019.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 19115-2:2010.
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, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 19115-2:2019 has been approved by CEN as EN ISO 19115-2:2019 without any
modification.
INTERNATIONAL ISO
STANDARD 19115-2
Second edition
2019-01
Geographic information —
Metadata —
Part 2:
Extensions for acquisition and
processing
Information géographique — Métadonnées —
Partie 2: Extensions pour l'acquisition et le traitement
Reference number
ISO 19115-2:2019(E)
©
ISO 2019
ISO 19115-2:2019(E)
© ISO 2019
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Fax: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved

ISO 19115-2:2019(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and abbreviated terms . 4
4.1 Abbreviated terms . 4
5 Conformance . 5
5.1 Conformance requirements . 5
5.2 Metadata profiles . 5
6 Acquisition and processing metadata . 5
6.1 Metadata for acquisition and processing requirements . 5
6.2 Acquisition and processing metadata packages and dependencies . 5
6.3 Acquisition and processing metadata class diagrams by package . 6
6.3.1 Introduction . 6
6.3.2 Acquisition Information . 7
6.3.3 Extended Lineage information .10
6.3.4 Extended spatial representation information — Geolocation information .11
6.3.5 Extended Content information — Imagery .13
Annex A (normative) Conformance .15
Annex B (normative) Acquisition and processing metadata data dictionary .18
Annex C (informative) XML schema implementation .56
Bibliography .57
ISO 19115-2:2019(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.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/directives).
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. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following
URL: www .iso .org/iso/foreword .html.
This document was prepared by ISO/TC 211, Geographic information/Geomatics.
This second edition cancels and replaces the first edition (ISO 19115-2:2009), which has been technically
revised.
The following is a summary of major changes to this document during the revision process:
— The name and scope were changed to better describe the purpose of the document;
— QE_CoverageResult and QE_Useability were moved to ISO 19157;
— All extended classes now extend ISO 19115-1:2014;
— Whereas the XML Schema encoding for ISO 19115-2:2009 was provided in ISO/TS 19139-2; the link
and information about the XML schema for this revision is provided in Annex C of this document;
— A specified class of MI_Instrument – MI_Sensor was defined. A list of all the parts in the ISO 19115
series, can be found on the ISO website.
iv © ISO 2019 – All rights reserved

ISO 19115-2:2019(E)
Introduction
This document replaces the previous edition (ISO 19115-2:2009) Geographic information — Metadata
— Extension for imagery and gridded data, which focused on metadata for imagery and gridded data
as they are important information sources and products used within a geospatial environment by
geographic information systems. During the revision process it was noted that this metadata applied
to the acquisition and processing of geographic information from all sources not just imagery and
gridded data. Hence, the new title Geographic information — Metadata — Extensions for acquisition and
processing. The production of all geographic information, including imagery and gridded data, follows
one or more process chains that begins with remote sensing data, scanned maps, field data collection
or other sensing methods and ends with the creation of the end data products. The production process
needs to be documented 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 to support the production process.
The object of this document is to provide the additional structure needed to more extensively describe
the acquisition and processing of geographic information from all sources. This structure is intended
to augment ISO 19115-1. This document also provides an XML schema for implementing this document
using ISO/TS 19115-3.
INTERNATIONAL STANDARD ISO 19115-2:2019(E)
Geographic information — Metadata —
Part 2:
Extensions for acquisition and processing
1 Scope
This document extends ISO 19115-1:2014 by defining the schema required for an enhanced description
of the acquisition and processing of geographic information, including imagery. Included are the
properties of measuring systems and the numerical methods and computational procedures used to
derive geographic information from the data acquired by them. This document also provides the XML
encoding for acquisition and processing metadata thereby extending the XML schemas defined in ISO/
TS 19115-3.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 19103:2015, Geographic information — Conceptual schema language
ISO 19115-1:2014, Geographic information — Metadata — Part 1: Fundamentals
ISO 19157:2013, Geographic information — Data quality
ISO/IEC 19501:2005, Information technology — Open Distributed Processing — Unified Modeling
Language (UML) Version 1.4.2
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 19115-1:2014 and the
following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at https: //www .electropedia .org/
— ISO Online browsing platform: available at https: //www .iso .org/obp
3.1
attribute
named property of an entity
Note 1 to entry: Describes a geometrical, topological, thematic, or other characteristic of an entity.
[SOURCE: ISO/IEC 2382:2015, 2121440, modified — Note 1 to entry replaces Notes 1 and 2 to entry.]
3.2
band
range of wavelengths of electromagnetic radiation that produce a single response by a sensing device
[SOURCE: ISO/TS 19101-2:2008, 4.1]
ISO 19115-2:2019(E)
3.3
class
description of a set of objects that share the same attributes (3.1), operations, methods, relationships,
and semantics
[SOURCE: ISO 19103:2015, 4.7]
3.4
coverage
feature that acts as a function to return values (3.29) from its range for any direct position within its
spatial, temporal or spatiotemporal domain (3.8)
EXAMPLE Raster image (3.18), polygon overlay, or digital elevation matrix.
[SOURCE: ISO 19123:2005, 4.1.7, modified — NOTE deleted.]
3.5
data type
specification of a value domain (3.30) with operations allowed on values (3.29) in this domain (3.8)
[SOURCE: ISO 19103:2015, 4.14, modified — EXAMPLE and Note 1 to entry deleted.]
3.6
dataset
identifiable collection of data
[SOURCE: ISO 19115-1:2014, 4.3, modified — Note 1 to entry deleted.]
3.7
dataset series
collection of datasets (3.6) sharing common characteristics
[SOURCE: ISO 19115-1:2014, 4.4]
3.8
domain
well-defined set
[SOURCE: ISO 19109:2015, 4.8, modified — Note 1 to entry deleted.]
3.9
event
action which occurs at an instant
[SOURCE: ISO 19108:2002, 4.1.6]
3.10
geolocation information
information used to determine geographic location corresponding to image (3.18) location
3.11
georectified
corrected for positional displacement with respect to the surface of the Earth
3.12
georeferencing
geopositioning an object using a Correspondence Model derived from a set of points for which both
ground and image (3.18) coordinates are known
[SOURCE: ISO/TS 19130:2010, 4.37]
2 © ISO 2019 – All rights reserved

ISO 19115-2:2019(E)
3.13
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
Note 1 to entry: The curves partition a space into grid cells.
[SOURCE: ISO 19123:2005, 4.1.23]
3.14
grid coordinate system
coordinate system in which a position is specified relative to the intersection of curves
3.15
grid coordinates
sequence of two or more numbers specifying a position with respect to its location on a grid (3.13)
3.16
gridded data
data whose attribute (3.1) values (3.29) are associated with positions on a grid coordinate system (3.14)
3.17
ground control point
point on the earth that has an accurately known geographic position
3.18
image
gridded coverage (3.4) whose attribute (3.1) values (3.29) are a numerical representation of a physical
parameter
Note 1 to entry: The physical parameters are the result of measurement by a sensor (3.27) or a prediction from
a model.
3.19
imagery
representation of phenomena as images (3.18) produced by electronic and/or optical techniques
Note 1 to entry: In this document, it is assumed that the objects and phenomena have been sensed or detected by
radar, cameras, photometers, and infrared and multispectral scanners, or similar devices.
[SOURCE: ISO 19101-2:2008, 4.14]
3.20
metadata
information about a resource
[SOURCE: ISO 19115-1:2014, 4.10]
3.21
pass
single instance of a remote, mobile measuring system going by a target of interest
Note 1 to entry: In this document, the measuring system will usually be a remote sensing (3.25) platform (3.23).
In a navigation context, the measuring system might be a GPS satellite.
3.22
pixel
smallest element of a digital image (3.18) to which attributes (3.1) are assigned
Note 1 to entry: It is the smallest unit of display for a visible image.
[SOURCE: ISO/TS 19101-2:2008, 4.28, modified — Note 1 to entry replaces NOTES 1 and 2.]
ISO 19115-2:2019(E)
3.23
platform
structure which supports a sensor (3.27) or sensors
3.24
polarization
restricting radiation, especially light, vibrations to a single plane
3.25
remote sensing
collection and interpretation of information about an object without being in physical contact with
the object
[SOURCE: ISO/TS 19101-2:2008, 4.33]
3.26
resolution (of a sensor)
smallest difference between indications of a sensor (3.27) that can be meaningfully distinguished
Note 1 to entry: For imagery (3.19), resolution refers to radiometric, spectral, spatial and temporal resolutions.
[SOURCE: ISO/TS 19101-2:2008, 4.34]
3.27
sensor
element of a measuring system that is directly affected by a phenomenon, body, or substance carrying a
quantity to be measured
[SOURCE: ISO/IEC Guide 99:2007, 3.8, modified — EXAMPLES and NOTE deleted.]
3.28
spectral width
specific wavelength interval within the electromagnetic spectrum
EXAMPLE Band (3.2) 1 of Landsat TM lies between 0,45 μm and 0,52 μm in the visible part of the spectrum.
3.29
value
element of a type domain (3.8)
[SOURCE: ISO/IEC 19501:2005, 0000_5]
3.30
value domain
set of accepted values (3.29)
EXAMPLE The range 3-28, all integers, any ASCII character, enumeration of all accepted values (green,
blue, white).
[SOURCE: ISO 19103:2015, 4.37]
4 Symbols and abbreviated terms
4.1 Abbreviated terms
IDL Interface Definition Language
OCL Object Constraint Language
UML Unified Modelling Language
4 © ISO 2019 – All rights reserved

ISO 19115-2:2019(E)
5 Conformance
5.1 Conformance requirements
Metadata shall be provided as specified in Clause 6 and Annex B of this document and ISO 19115-1:2014,
Clause 6 and Annex B.
User-defined metadata extensions to this document shall be defined and provided as specified in
ISO 19115-1:2014, Annex C.
Any metadata claiming conformance with this document shall pass the requirements described in
Annex A of this document and the abstract test suite presented in ISO 19115-1:2014, Annex A.
5.2 Metadata profiles
Any profile conforming to this document shall conform to the rules for creating a profile given in
ISO 19115-1:2014, C.6.
6 Acquisition and processing metadata
6.1 Metadata for acquisition and processing requirements
ISO 19115-1 identifies the metadata required to describe digital geographic resources. This document
extends the metadata identified in ISO 19115-1 and identifies additional metadata required to describe
the acquisition and processing of geographic resources.
6.2 Acquisition and processing metadata packages and dependencies
The ISO geographic information series of standards are defined using one or more UML packages and
are maintained in a single integrated UML model. This document utilizes and extends concepts defined
in several of these other standards’ packages. Figure 1 illustrates the UML packages upon which
this document is dependent. Dependencies between packages not defined in this document are not
displayed. Metadata for acquisition and processing are defined and provided by one or more packages;
each package provides a separate component of metadata information. There are four packages that
are used to define and provide the metadata that is defined in this document: Acquisition information,
Extended lineage information, Extended spatial representation information, and Extended content
information.
ISO 19115-2:2019(E)
Figure 1 — Metadata packages
6.3 Acquisition and processing metadata class diagrams by package
6.3.1 Introduction
Metadata are composed of one or more metadata packages containing one or more metadata classes
containing attributes. The relationships between metadata packages and between metadata classes
are specified by composition and aggregation relationship symbols. Class attributes and relationships
are referred to collectively as metadata elements. The diagrams in 6.3.2 through 6.3.5 provide “views”,
which are portions of the total abstract model for metadata. Each diagram defines a metadata UML
package of related classes, elements, data types, and code lists. Related external classes are shown
with attributes relevant for this document and the package where they are fully specified identified
by the package name proceeding a double colon (::). In some cases, this package may be from another
standard identified by a labelled boxed outline. Since the classes in ISO 19115-1 being extended
cannot be modified the class being modified is redefined in this document using a similar name. To
differentiate between ISO 19115-1 and entities of this document, this part uses different prefixes.
The prefixes used are MI (to denote an extended MD class), LE (LI extended) and CE (CI_Extended).
6 © ISO 2019 – All rights reserved

ISO 19115-2:2019(E)
The classes from ISO 19115-1, being extended, are contained in a box labelled as such. The metadata
are fully specified by the UML model diagrams and an associated data dictionary for each package in
Annex B. Abstract classes (which are classes that are defined for schematic organization purposes, i.e.
only their subclasses are implemented) are identified with their names in italic. Codelists and their
values provided in this document are normative. User extensions to codelists shall follow the rules as
described in ISO 19115-1:2014, Annex C.
NOTE In some cases, optional classes can have mandatory elements; those elements become mandatory
only if the optional element is used.
6.3.2 Acquisition Information
6.3.2.1 Acquisition overview
This package extends MD_Metadata in ISO 19115-1 and provides details specific to the acquisition of
geospatial data using imagery, sensors, and other acquisition methods. MI_AcquisitionInformation is
an aggregate of the following entities:
— MI_Instrument, designations of the measuring instruments used to acquire the data;
— MI_Sensor, a specific type of MI_Instrument;
— 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_InstrumentEventList, which lists events affecting MI_Platform and MI_Instrument;
— MI_InstrumentEvent which identifies events affecting MI_Platform and MI_Instrument;
— MI_Revision which identifies the revision history of events;
— 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.
Figure 2 defines an overview of the metadata classes required to define the acquisition of data. The
data dictionary for this diagram is provided in B.2.1.
ISO 19115-2:2019(E)
Figure 2 — Acquisition Overview
6.3.2.2 Acquisition Details
Figure 3 defines, in additional detail, the metadata classes necessary to define the acquisition of data.
The data dictionary for this diagram is provided in B.2.1.
8 © ISO 2019 – All rights reserved

ISO 19115-2:2019(E)
Figure 3 — Acquisition Details
ISO 19115-2:2019(E)
6.3.3 Extended Lineage information
This package extends Lineage information (LI_Lineage) defined in ISO 19115-1; it supports the
provision of additional information about the sources and production processes used in producing
geospatial data.
— 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 and LE_ProcessingParameter which provides information about the
parameters affecting the processing;
— 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.
Figure 4 defines the extensions required to specify additional lineage information. The additional
elements provide information about the processing of the raw data that was performed to produce the
data in the data set. The data dictionary for this diagram is given in B.2.2.
10 © ISO 2019 – All rights reserved

ISO 19115-2:2019(E)
Figure 4 — Lineage extensions
6.3.4 Extended spatial representation information — Geolocation information
The spatial representation package contains information concerning the mechanisms used to represent
spatial information. This extension supports the addition of metadata about the ground control points
used to geo-locate data and consists of the following entities:
— MI_Georectified is an extension of MD_Georectified that contains check point information to further
specify georectification details of the data. MI_Georectified aggregates MI_GCP;
— MI_Georeferenceable is an extension of MD_Georeferenceable that includes additional information
that can be used to geo-locate data. MI_Georeferenceable aggregates MI_GeolocationInformation
which can be specified as a MI_GCPCollection.
Figure 5 defines the extensions required to provide metadata about the ground control used for geo-
locating data. The data dictionary for this diagram is given in B.2.3.
ISO 19115-2:2019(E)
Figure 5 — Spatial representation information
6.3.4.1 Ground control point quality
Figure 6 defines the extensions required to describe the quality of ground control points using data
quality classes from ISO 19157. The data dictionary for this diagram is given in B.2.4.
12 © ISO 2019 – All rights reserved

ISO 19115-2:2019(E)
Figure 6 — Quality of ground control points
6.3.5 Extended Content information — Imagery
The package Content information is defined in ISO 19115-1 and describes the content of a coverage data
set. This document extends:
— MI_Band is an extension of MD_Band defining additional attributes for specifying properties of
individual wavelength bands in an imagery and gridded data set;
— MI_ImageDescription is an extension of MD_ImageDescription used to aggregate MI_
RangeElementDescription;
— MI_CoverageDescription is an extension of MD_CoverageDescription used to aggregate MI_
RangeElementDescription;
— MI_RangeElementDescription provides identification of the range elements used in a coverage
data set.
Figure 7 defines the extensions required to further describe the content of coverages. The data
dictionary for this diagram is given in B.2.4.
ISO 19115-2:2019(E)
Figure 7 — Content information
14 © ISO 2019 – All rights reserved

ISO 19115-2:2019(E)
Annex A
(normative)
Conformance
A.1 Introduction
The abstract test suite in this document includes the abstract test suite specified in ISO 19115-1:2014
by reference. Metadata in compliance with this document shall meet the conformance requirements of
ISO 19115-1:2014 and shall be provided as specified in Clause 6 and Annex B of this document. User-
defined metadata shall be defined and provided as specified in ISO 19115-1:2014, Annex C. User-defined
metadata shall satisfy the requirements of C.3.
A.2 Metadata test suite
A.2.1 Test case identifier: completeness test
a) Test purpose: to determine conformance by the inclusion of all metadata sections, metadata
entities, and metadata elements that are specified with an obligation of “mandatory” or mandatory
under the conditions specified.
NOTE Many elements designated as mandatory are contained within optional entities. These elements
become mandatory only when their containing entity is used.
b) Test method: a comparison between this document and a subject metadata set to be tested shall be
performed to determine if all metadata defined as mandatory in Annex B are present. A comparison
test shall also be performed to determine if all metadata elements defined as conditional in Annex B
are present if the conditions set out in this document apply.
c) Reference: Clause 6 and Annex B and ISO 19115-1:2014, Clause 6 and Annex B.
d) Test type: basic.
The following test cases apply at all levels of obligation – mandatory, conditional, and optional.
A.2.2 Test case identifier: maximum occurrence test
a) Test purpose: to ensure each metadata element occurs no more than the number of times specified
in this document.
b) Test method: examine a subject metadata set for the number of occurrences of each metadata
section, metadata entity, and metadata element provided. The number of occurrences for each shall
be compared with its “maximum occurrence” attribute specified in Clause 6 and Annex B.
c) Reference: Clause 6 and Annex B.
d) Test type: basic.
A.2.3 Test case identifier: data type test
a) Test purpose: to determine if each metadata element within a subject metadata set uses the
specified data type.
b) Test method: the value of each provided metadata element is tested to ensure its data type adheres
to the data type specified.
ISO 19115-2:2019(E)
c) Reference: Clause 6 and Annex B.
d) Test type: basic.
A.2.4 Test case identifier: domain test
a) Test purpose: to determine if each provided metadata element within a subject metadata set falls
within the specified domain.
b) Test method: the values of each metadata element are tested to ensure they fall within the
specified domain.
c) Reference: Clause 6 and Annex B.
d) Test type: basic.
A.2.5 Test case identifier: schema test
a) Test purpose: to determine if a subject metadata set follows the schema specified in this document.
b) Test method: test each metadata element and ensure it is contained within the specified
metadata entity.
c) Reference: Clause 6 and Annex B.
d) Test type: basic.
A.3 User-defined extension metadata test suite
A.3.1 Test case identifier: exclusiveness test
a) Test purpose: to verify that each user-defined metadata package, metadata class, and metadata
element is unique and not already defined in this or any other document.
b) Test method: each user-defined metadata entity and metadata element is tested to ensure it is
unique and not previously used.
c) Reference: Clause 6 and Annex B and ISO 19115-1:2014, Clause 6 and Annex B.
d) Test type: basic.
A.3.2 Test case identifier: definition test
a) Test purpose: to verify that user-defined metadata entities and metadata elements have been
defined as specified in ISO 19115-1.
b) Test method: each user-defined metadata entity and metadata element is tested to ensure that all
attributes have been defined.
c) Reference: ISO 19115-1:2014, Annex C.
d) Test type: basic.
A.3.3 Test case identifier: standard metadata test
a) Test purpose: to verify that user-defined metadata within a subject metadata set fulfils the same
requirements as ISO 19115-1 standard metadata.
b) Test method: all user-defined metadata in a subject metadata set is tested in accordance with
ISO 19115-1:2014, C.2.
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ISO 19115-2:2019(E)
c) Reference: ISO 19115-1:2014, C.2.
d) Test type: basic.
A.4 Metadata profiles
A.4.1 Test case identifier: metadata profiles
a) Test purpose: to verify that a profile follows the rules specified in ISO 19115-1:2014, C.5 and C.6.
b) Test method: apply tests defined in ISO 19115-1:2014, C.6.
c) Reference: ISO 19115-1:2014, C.6.
d) Test type: basic.
ISO 19115-2:2019(E)
Annex B
(normative)
Acquisition and processing metadata data dictionary
B.1 Data dictionary overview
B.1.1 Introduction
This data dictionary describes the characteristics of the metadata defined in Clause 6. The dictionary
is specified in a hierarchy to establish relationships and an organization for the information. The
dictionary is categorised into sections by UML model package diagram: acquisition information,
lineage information, spatial representation information, and content information. Each model diagram
in Clause 6 has a set of tables within the data dictionary. Each UML model class along with its sub-class
equates to a table in this data dictionary. Rows with bold type define UML classes. The elements within
the data dictionary are defined by six attributes (those attributes are defined in B.1.2 to B.1.7).
B.1.2 Name/role name
A label assigned to a metadata class or to a metadata element. Metadata class names start with an upper-
case letter. Spaces do not appear in a metadata class name. Instead, multiple words are concatenated,
with each new subword starting with a capital letter (example: XnnnYmmm). Metadata class names are
unique within the entire data dictionary of ISO 19115-1 and this document. Metadata element names
are unique within a metadata class, not the entire data dictionary of ISO 19115-1 and this document.
Metadata element names are made unique, within an application, by the combination of the metadata
class and metadata element names (example: MD_Metadata.characterSet). Role names are used to
identify metadata abstract model associations and are preceded by “Role name”: to distinguish them
from other metadata elements. Names and role names may be in a language other than that used in this
document.
B.1.3 Definition
The metadata class/element description.
B.1.4 Obligation/condition
B.1.4.1 General
This is a descriptor indicating whether a metadata entity or metadata element shall always be
documented in the metadata or sometimes be documented, i.e. contains value(s). This descriptor may
have values: M (mandatory) or O (optional).
B.1.4.2 Mandatory (M):
The metadata class or metadata element shall be documented.
B.1.4.3 Optional (O):
The metadata class or the metadata element may be documented or may not be documented. Optional
metadata classes and optional metadata elements have been defined to provide a guide to those
looking to fully document their data. (Use of this common set of defined elements will help promote
interoperability among geographic data users and producers world-wide.) If an optional class is not
used, the elements contained within that class (including mandatory elements) will also not be used.
18 © ISO 2019 – All rights reserved

ISO 19115-2:2019(E)
Optional classes may have mandatory elements; those elements only become mandatory if the optional
class is used.
B.1.5 Maximum occurrence
Specifies the maximum number of instances the metadata class or the metadata element may have.
Single occurrences are shown by “1”; repeating occurrences are represented by “N”. Fixed number
occurrences other than one are allowed, and will be represented by the corresponding number (i.e. “2”,
“3” … etc.).
B.1.6 Data type
Specifies a set of distinct values for representing the metadata elements; for example, integer, real,
string, DateTime, and Boolean. The data type attribute is also used to define metadata entities,
stereotypes, and metadata associations.
NOTE Data types are defined in ISO 19103:2015, 6.5.2.
B.1.7 Domain
For a class, the domain indicates the line numbers covered by that class.
For a metadata element, the domain specifies the values allowed or the use of free text. “Free text”
indicates that no restrictions are placed on the content of the field.
B.2 Acquisitioning and processing metadata package data dictionaries
B.2.1 Acquisition information
ISO 19115-2:2019(E)
20 © ISO 2019 – All rights reserved
Table B.1 — MD_Metadata extension
Maximum
Name Definition Obligation Data type Domain
occurrence
1. MI_Metadata root entity that defines information Use obligation Use maximum Specified Class Line 2 plus
about acquisition and processing of from referencing occurrence from (MD_Metadata)
MD_Metadata, ISO 19115-1:2014,
geographic information (MD_Metadata object referencing object
Table B.2)
extended)
2. Role name: provides information about the acquisi- O N Association MI_AcquisitionInformation
acquisitionInformation tion of the data
(Table B.2)
NOTE  The UML model for this table is shown in Figure 2.

ISO 19115-2:2019(E)
Table B.2 — Acquisition information
Maximum
Name Definition Obligation Data type Domain
occurrence
3. MI_AcquisitionInformation designations for the measuring instru- Use obligation Use maximum Aggregated Class Lines 4 to 11
ments, the platform carrying them, from referencing occurrence from (MI_Metadata)
and the mission to which the data object referencing object
contributes
4. scope the specific data to which the acquisition O N Class MD_Scope
information applies
5. Role name: identifies the plan as implemented by the O N Association MI_Plan
acquisitionPlan acquisition
(Table B.7)
6. Role name: identifies the requirement the data acqui- O N Association MI_Requirement
acquisitionRequirement sition intends to satisfy
(Table B.12)
7. Role name: a record of the environmental circum- O 1 Association MI_EnvironmentalRecord
environmentalConditions stances during the data acquisition
(Table B.3)
8. Role name: general information about the instrument O N Association MI_Instrument
instrument used in data acquisition
(Table B.4)
9. Role name: identification of the area or object to be O N Association MI_Objective
objective sensed
(Table B.5)
10. Role name: general information about an identifiable O N Association MI_Operation
operation activity which provided the data
(Table B.6)
11. Role name: general information about the platform O N Association MI_Platform
platform from which the data were taken
(Table B.9)
NOTE  The UML model for this table is shown in Figure 2.

ISO 19115-2:2019(E)
22 © ISO 2019 – All rights reserved
Table B.3 — Environmental rec
...