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ivoa

version 1.1 2026-03-13

Introduction

This is the main reference data model containing primitive types used in other data models.

Authors

Overview diagram

The whole model is represented in a model diagram below.

GVmapivoa data modelivoa:Unit <<primitive type>> Unit ivoa:string <<primitive type>> string ivoa:Unit->ivoa:stringivoa:anyURI <<primitive type>> anyURI ivoa:anyURI->ivoa:stringivoa:boolean <<primitive type>> boolean ivoa:complex <<primitive type>> complex ivoa:datetime <<primitive type>> datetime ivoa:duration <<primitive type>> duration ivoa:integer <<primitive type>> integer ivoa:nonnegativeInteger <<primitive type>> nonnegativeInteger ivoa:rational <<primitive type>> rational ivoa:real <<primitive type>> real ivoa:intIdentifier <<primitive type>> intIdentifier ivoa:intIdentifier->ivoa:integerivoa:stringIdentifier <<primitive type>> stringIdentifier ivoa:stringIdentifier->ivoa:stringivoa:ivoid <<primitive type>> ivoid ivoa:ivoid->ivoa:anyURIivoa:uuid <<primitive type>> uuid ivoa:IntegerQuantity <<datatype>> IntegerQuantity +value : ivoa:integer ivoa:Quantity <<datatype>> Quantity +unit : ivoa:Unit ivoa:IntegerQuantity->ivoa:Quantityivoa:RealQuantity <<datatype>> RealQuantity +value : ivoa:real ivoa:RealQuantity->ivoa:Quantity

Primitives

DataTypes