Nesstar Technical Information and Software Development Kit

In this page you will find:

Nesstar and NEOOM Documentation

Nesstar is a "Data Web", a Semantic Web Application for Statistical Data and Metadata. Using Nesstar, statistical data and metadata can be published on the Web in a vendor and technology independent way.

The Nesstar system is implemented on top of NEOOM, a lightweight web and object-oriented middleware that aims to provide most of the advantages of object-orientation while maintaining full compatibility with the existing Web infrastructure. To ensure compatibility with the Web it uses an extension of the Resource Description Framework as its Interface Definition Language and the Hypertext Transfer Protocol as its network protocol. NEOOM is closely based on Web and Semantic Web standards, in particular RDF, RDF Schema, HTML and HTTP. So closely, actually, that more than a distinct framework it can be considered as just a set of guidelines on how to use off the shelf (Semantic) Web technology to build distributed object-oriented systems. Though it was developed to support Nesstar NEOOM is domain independent and could be used as a reference architecture for all kinds of semantic web applications.

Available documentation:

NESSTAR: A Semantic Web Application for Statistical Data and Metadata
Brief introduction to the NESSTAR system and NEOOM. A revised version of a paper presented at the Real World RDF and Semantic Web Applications Workshop, WWW2002 Conference, May 2002. PDF Format, 10 pages (presentation slides).
NEOOM: A Web and Object Oriented Middleware System
Full description of the architecture and of its Java implementation. The Java implementation has been recently improved with support for the EJB architecture. These improvements are not yet reflected in this document. 70+ pages, PDF format

Earlier and related documents:

Joining the Semantic Web: a Practical Guide
(HTML slides)
Presented at the panel on "Real World RDF and Semantic Web Applications", WWW2002 Conference, May 2002. Powerpoint Format.
Objectifying the Web the "light" way: an RDF-based framework for the description of Web objects
A short introduction to NEOOM. 10 pages, HTML format.
Objectifying the Web the "light" way: an RDF-based framework for the description of Web objects
2 pages summary of the above. PDF format.

The Nesstar Object Model

The conceptual core of the Nesstar system is the Nesstar Object Model, a UML model of Statistical Data and Metadata. The latest version of the model can be browsed on the site.

The Nesstar Software Development Kit (SDK)

Nesstar servers are accessible either through the simple HTTP/RDF interface defined by NEOOM or, more conveniently, through an object-oriented Java API.

You can browse the Stable 3.5 Javadocs and download the SDK as a single Zip file.

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Page last updated on the 1st of December 2003.