Versa is a specialized language for addressing and querying nodes and arcs in a Resource Description Framework (RDF) model. It uses a simple and expressive syntax, designed to be incorporated into other expression systems, including XML, where, for instance, Versa can be used in extension functions or attributes of extension elements that provide RDF-related capabilities. Versa operates on the abstract graph model of RDF, and not any particular serialization.

This Wiki section is for Versa 2.0, an attempt to improve Versa for power and expressiveness. Please see below for a proposal to also change the scope of Versa slightly.

Versa 2.0 discussion group

Versa 2.0

Developers' notes

• Versa/Specification

• Chime's Versa Primer

• Versa 2.0 test cases

• Versa 2.0 variable assignment test cases

• Versa/By_example

• Versa/Scratchpad

• Versa/Issues -- updated issues list, in progress of conversion from old list (below)

• Versa 2.0 issues list - the issues doc from 2005

See also:

• Discuss via Jabber at 4suite@conference.jabber.org

• Discuss via IRC at #versa on Freenode

Other query languages and discussion:

• iTQL (SQL-like)

• SPARQL (SQL-like)

• TreeHugger (path-like)

• RDFTwig (path-like)

• thoughts on path-like RDF query languages

• URIQA (good handling of named subgraphs)

• query language discussion for Koha (library sciences)

• "soliciting your favorite (public) SPARQL queries!"

• Another Versa-like language proposal

• Evan Lenz's thoughts on extending XPath to multi-doc graphs (rather than e.g. XQuery)

Boulder Vice Versa

Versa/Boulder_vice: proposal for a change in direction for Versa 2.0, with working name Boulder Vice Versa (if supported by the community, BVV would merely become Versa 2.0)

Versa 1.0

For information on Versa 1.0 see:

• Versa on Wikipedia

• Uche's Versa home page links to a lot of Versa 1.0 material

See also

• http://half-n-half.net/?p=474 - Does Nissan owe us homage?