ANNOUNCE: Rx4RDF and Rhizome 0.4.1

Adam Souzis adamsz at
Fri Oct 15 06:23:09 CEST 2004

Rx4RDF is application stack for building RDF-based applications and web
Rhizome is a Wiki-like content management and delivery system built on
Rx4RDF that brings the Wiki metaphor to building dynamic web sites.

What's new?

(Since 0.3.0 -- I never got around to announcing 0.4.0.)
0.4.0: Rhizome gains full-text indexing, browsing and grouping by keyword,
summary views, better support for RDF/XML, diffing in revisions view,
and several usability enhancements. Raccoon gets several improvements to
performance, security, and error handling. RxML and ZML syntax has been
made more user-friendly with simpler syntax and better documentation.
0.4.1: RxPath adds support for RDFLib, if installed. Throughout all
sub-systems: get non-ASCII content working.

In addition, there have several other enhancements, see for more details.

More Info:

* Rx4RDF is a set of technologies designed to make RDF more accessible
and easier to use. It includes:

** RxPath provides a deterministic mapping between the RDF abstract
syntax to the XPath data model,  allowing you to query, transform and
update a RDF model with languages syntactically indentical to XPath,
XSLT and XUpdate (dubbed RxPath, RxSLT, and RxUpdate respectively).

** ZML  is a Wiki-like text formatting language that lets you write
arbitrary XML or HTML (using Python-esque indentation rules), enabling
you to author XML documents with (nearly) the same ease as a Wiki entry.

** RxML is an alternative XML serialization for RDF that is designed for
easy authoring in ZML, allowing novices to author and edit RDF metadata.

* Raccoon  is a simple application server that uses an RDF model for its
data store, roughly analogous to RDF as Apache Cocoon is to XML. Raccoon
uses RxPath to translate arbitrary requests (currently HTTP, XML-RPC and
command line arguments) to RDF resources, each of which can be
associated with RxSLT and RxUpdate stylesheets.

* Rhizome is a Wiki-like content management and delivery system built on
Raccoon that takes the concept of the Wiki to the next level: everything
is editable, not just content but its meta-data and behavior, even the
structure of the site itself. Furthermore, Wiki entries are abstract
globally unique RDF resources that can have any kind of content and
whose presentation is contextual.



-- adam (asouzis at

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