Modular Namespaces (MNS) From James Clark

Modular Namespaces (MNS)

Date:      Fri, 31 Jan 2003 14:04:20 +0700
From:      James Clark <jjc@jclark.com>
To:        XML Developers' List <xml-dev@lists.xml.org>
Subject:   ANN: Modular Namespaces (MNS)

I've designed and implemented a little language called Modular Namespaces (MNS). The spec is at:

http://www.thaiopensource.com/relaxng/mns.html.

There's a new release of Jing that includes a sample implementation:

http://www.thaiopensource.com/relaxng/jing.html#mns

It's designed to be useful when:

you have an instance that uses elements and attributes from multiple namespaces
you have one or more schemas (not necessarily all in the same schema language) each of which deals with one or more of these namespaces
you want to use all these schemas to validate the instance

It's an evolution of the ideas pioneered by Murata Makoto in RELAX Namespace.

The sample implementation only allows the schemas to be in the languages implemented by Jing: RELAX NG, RELAX NG Compact Syntax, and (recursively) MNS. However, the language is not so restricted and can potentially work with any schema language for XML.

James

Prepared by Robin Cover for The XML Cover Pages archive. See general references in "Namespaces in XML."

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