ISO/IEC 18026:2009 Information technology — Spatial Reference Model (SRM)
ISO/IEC 18026:2009 is a standard for the representation of geographical data. It specifies a spatial reference model (SRM) that can be used to represent geographic information in digital form. The SRM can be used to store and exchange geospatial data, as well as to provide navigational services.
What is ISO/IEC 18026:2009 Information technology — Spatial Reference Model (SRM)
ISO/IEC 18026:2009 is an international standard that defines a spatial reference model for information technology. The SRM enables geospatial applications to interoperate and share data in a consistent and standard way.
The SRM is composed of five core elements: 1) Base Level 2 (BL2) layers, 2) Extensions, 3) Metadata, 4) Reference Managers, and 5) Applications.
Each of the BL2 layers consists of one or more coordinate systems that define the precise location of points in space. Each coordinate system can be represented by a unique set of coordinates, called Geographic Coordinate System (GCS).
The base level 2 layer defines the Earth’s surface, while the extension layer includes additional geographical features such as lakes, rivers, and coastlines. The metadata layer specifies the format and structure of the data in each layer, while the reference managers manage the relationships between layers and coordinate systems.
Also, The applications layer allows users to access and use the data in the SRM. Applications can be standalone software programs or services built into other applications.
ISO/IEC 18026:2009 is an important standard for geospatial technologies because it provides a common framework.
What are the requirements of ISO/IEC 18026:2009
ISO/IEC 18026:2009 is the latest edition of the ISO/IEC International Standard on Geospatial Information Management, which establishes requirements for the management of spatial data.
It defines a spatial reference model (SRM) that can be used to manage geospatial data. In addition, The SRM provides a framework for describing and managing different types of spatial data. Including geographic features, boundaries, resources, and relationships between them.
The SRM allows for the consistent representation of all types of spatial data across different software applications and hardware platforms. So, This makes it easier to find and use spatial data in a variety of applications.
The requirements of this standard are as follows:
The SRM must be consistent with other standards such as ISO 19115:2006 and ISO 19148:2006.
The SRM must be able to represent all types of spatial data, including geographic features, boundaries, resources, and relationships between them.
And, The SRM must provide a framework for describing and managing spatial data in a meaningful way.
Therefore, The SRM must be portable across different software applications and hardware platforms.
What are the benefits of ISO/IEC 18026:2009
ISO/IEC 18026:2009 is a standard that defines a spatial reference model (SRM) for geospatial information. Thus, the SRM provides a common framework for describing and managing the geographic content of digital products and services.
The benefits of this standard include:
– improved interoperability and consistency between geospatial information systems (GIS)
– reduced complexity and costs associated with geospatial data management
– easier sharing of geospatial data between different organizations
– Also, better management of uncertainty in geospatial data
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