2. EPSG Dataset Structure

 

 

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2. Dataset

The dataset maintained by the EPSG.ORG web site contains definitions of geodetic elements that make up coordinate reference systems and coordinate operations. The structure of the dataset is built on a subset of the ISO 19111:2019 document with minor extensions.

 

The dataset is maintained through a change request process that results in infrequent updates to the database. Each element has a date stamp that is updated when the element is modified. Two operations do not result in time stamp updates, they are deprecations and supersessions.