Overview
ISO 19115-2:2019/Amd 1:2022 is an important amendment to the international standard ISO 19115-2, which focuses on geographic information metadata. This part of the ISO 19115 series provides detailed extensions for acquisition and processing of geographic data, enhancing the ability to document and manage metadata related to instruments, platforms, sensors, and processing activities involved in data acquisition.
The amendment updates key metadata elements, refining how geographic information is recorded, particularly concerning the instrumentation and processes used in data capture and manipulation. Developed by ISO/TC 211 in collaboration with CEN/TC 287, this standard supports interoperability in geographic information and geomatics domains globally.
Key Topics
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Instrument Metadata
Defines metadata attributes for measurement instruments including identification, type, description, and associated sensors. It ensures comprehensive documentation of instruments used in data acquisition.
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Platform Metadata
Covers metadata related to platforms that host instruments, such as satellites or airborne systems. Includes details such as platform identifiers, descriptions, sponsors, and associated instruments.
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Processing Metadata
Details on data processing procedures, software, parameters, and algorithms applied. This supports transparency and reproducibility in geographic data processing workflows.
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Event Types and Instrumentation History
Provides a coding scheme for different types of events related to instruments and platforms-such as calibration, data loss, malfunctions, and maintenance events-enabling precise tracking over the lifecycle.
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XML Schema Implementation
Describes how metadata models are encoded using XML schemas compliant with ISO/TS 19115-3, facilitating integration with other metadata frameworks and software applications.
Applications
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Geospatial Data Management
Assists geospatial professionals in creating standardized metadata, ensuring datasets from diverse sources can be efficiently integrated and understood.
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Remote Sensing and Earth Observation
Standardizes metadata for satellite and airborne sensor data, improving data sharing and usability in environmental monitoring, disaster management, and land use planning.
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Instrumentation Documentation
Enables clear metadata documentation on the tools and platforms used for geographic data acquisition, critical for quality control and traceability in scientific and industrial applications.
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Data Processing Transparency
Supports metadata records of processing steps, enhancing reproducibility and verification of how raw data transforms into usable geographic information products.
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Interoperability in GIS
Facilitates consistent metadata implementation that enables multiple geographic information systems (GIS) to interoperate by understanding each other's acquisition and processing lineage.
Related Standards
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ISO 19115-1:2014 (Metadata - Part 1: Fundamentals)
Provides core metadata elements and concepts extended by ISO 19115-2 for acquisition and processing.
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ISO/TS 19115-3:2016
Defines XML schema implementation for geographic metadata, which ISO 19115-2 utilizes for encoding metadata elements.
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ISO 19157:2013 (Data Quality)
Complements this standard by defining quality evaluation frameworks for spatial data, often referencing acquisition and processing metadata.
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ISO 19103:2015 (Conceptual Schema Language)
Provides the modeling constructs used throughout ISO 19115-2 for defining metadata elements and classes.
Practical Value
Implementing ISO 19115-2:2019/Amd 1:2022 enables professionals to:
- Ensure metadata completeness for robust geographic data provenance and lineage tracking.
- Enhance data discoverability by detailing acquisition instruments and platforms.
- Promote interoperability across international geospatial data infrastructures.
- Streamline quality assurance by documenting calibration and processing activities clearly.
- Utilize standardized XML schemas for metadata exchange and integration across software tools.
This amendment advances the standard by refining metadata requirements and providing up-to-date XML schema implementations, supporting evolving geospatial data management needs in research, government, and industry sectors.