XML SchemaPlus

October 30, 2010

Authors:: Paul J. Keller <Paul.J.Keller at nasa.gov>; Ralph Hodgson <Ralph.Hodgson at nasa.gov>

Overview

XML SchemaPlus (XSP) is a NASA standard that achieves semantic alignment between XML and OWL. Alignment is achieved through a transformation of OWL models that specifies the structure of an XML Schema. XML documents that conform to the generated schemas can then be converted to RDF triples that will be consistent with the OWL ontologies. XSP gives guarantees for semantic interoperability by addressing the following problems in XML Schema:

Inheritance is limited to single inheritance
Inheritance can either be restriction or extension but not both
XSD's do not support reuse across schemas well.

An XSP document is a specification of the structure of an XML document.

Status of This Document

The document reflects work on version 1.1 of XML SchemaPlus.

Specifications

Why XML SchemaPlus
XML SchemaPlus Specification
[TBD - link] OWL Ontology Modeling Guide
[TBD - link] Code Lists and Vocabularies

Implementations

[TBD - link] XML Tools
[TBD - link] OWL Tools
[TBD - link] Validation Tools

Implementations

[TBD - link] NASA NExIOM - NASA Exploration Initiatives Ontology Models
[TBD - link] NASA TCMX - NASA Telemetry, Commanding and Messaging XML Schemas and Vocabularies
[TBD - link] MoJ UBL Metadata Workbench

Articles

[TBD - link] XML SchemaPlus Whitepaper (pdf)
[TBD - link] XML SchemaPlus Presentation (powerpoint)

Paul J. Keller and Ralph Hodgson
Last Updated October 30, 2010
$Revision: 1.19 $ $Date: 2009/08/22 00:51:52 $