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arXiv · 1110.0525

IVOA Recommendation: An IVOA Standard for Unified Content Descriptors Version 1.1

Sébastien Derriere·Norman Gray·Robert Mann·Andrea Preite Martinez·Jonathan McDowell·Thomas Mc Glynn·François Ochsenbein·Pedro Osuna·Guy Rixon·Roy Williams
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Abstract

This document describes the current understanding of the IVOA controlled vocabulary for describing astronomical data quantities, called Unified Content Descriptors (UCDs). The present document defines a new standard (named UCD1+) improving the first generation of UCDs (hereafter UCD1). The basic idea is to adopt a new syntax and vocabulary requiring little effort for people to adapt softwares already using UCD1. This document also addresses the questions of maintenance and evolution of the UCD1+. Examples of use cases within the VO, and tools for using UCD1+ are also described.

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Sébastien Derriere, Norman Gray, Robert Mann, Andrea Preite Martinez, Jonathan McDowell, Thomas Mc Glynn, François Ochsenbein, Pedro Osuna, Guy Rixon, Roy Williams. 2011-10-03. IVOA Recommendation: An IVOA Standard for Unified Content Descriptors Version 1.1. https://doi.org/10.5479/ads%2Fbib%2F2005ivoa.spec.0819d

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