BS EN ISO 19126:2021

What is ISO 19126 about?  

ISO 19126 specifies a schema for feature concept dictionaries to be established and managed as registers.  

ISO 19126 specifies a schema for a hierarchical register of feature concept dictionaries and feature catalogues. 

Who is ISO 19126 for? 

ISO 19126 on feature concept dictionaries and registers is useful for: 

• Government administration 
• Investigation Scientist 
• Developers for urban development 
• GIS Technician 
• Consumers 

Why should you use ISO 19126?  

Geographic features are abstractions of real-world phenomena associated 

with a location relative to the surface of the earth, about which data are collected, maintained and disseminated.  

A feature concept dictionary provides basic definitions and related information about a set of concepts that are useful to describe geographic features. Elements from a feature concept dictionary can be reused in one or more feature catalogues. A feature catalogue is often associated with a particular application schema, product specification and data set. ISO 19126 provides a complete textual specification of a set of feature types and their properties and relationships.  

ISO 19126 defines object classes and specifies rules which enables you to establish and maintain feature concept dictionaries as ISO 19135-1 conformant register schemas. 

ISO 19126 can serve as a guide for different information communities to develop compatible registers that can support a system of geographic information cross-referencing. 

What’s changed since the last update?  

BS EN ISO 19126:2021 supersedes ISO 19126:2009. BS EN ISO 19126:2021 includes some technical changes with respect to ISO 19126:2009. These include: 

• The UML diagrams have been improved to conform to the current style and the UML to the ISO/TC 211 Harmonized Model for both the 2009 version and this document has been added 
•  Minor updates have been made to take into account changes to other standards, particularly ISO 19135-1