International Virtual Observatory Alliance
An essential capability of the
Virtual Observatory is a means for describing what data and computational
facilities are available where, and once identified, how to use them. The data
themselves have associated metadata (e.g., FITS keywords), and similarly we
require metadata about data collections and data services so that VO users can
easily find information of interest. Furthermore, such metadata are needed in
order to manage distributed queries efficiently; if a user is interested in
finding x-ray images there is no point in querying the HST archive, for
example. In this document we suggest an architecture for resource and service
metadata and describe the relationship of this architecture to emerging Web
Services standards. We also define an initial set of metadata concepts.
Resource Metadata for the Virtual Observatory
IVOA Recommendation 02 March 2007
- Interest/Working Group:
- Robert Hanisch, the IVOA Resource Registry Working Group, the NVO Metadata Working Group
- Robert Hanisch
This document has been produced by the Resource Registry Working Group.
It has been reviewed by IVOA Members and other interested parties, and has been endorsed by the IVOA Executive Committee as an IVOA Recommendation. It is a stable document and may be used as reference material or cited as a normative reference from another document. IVOA's role in making the Recommendation is to draw attention to the specification and to promote its widespread deployment. This enhances the functionality and interoperability inside the Astronomical Community.