Relational database

XWiki is a platform for developing collaborative web applications using the wiki paradigm. This is what makes XWiki a second generation wiki.
XWiki Products are based on the XWiki Platform which provides common services and UI to them.

A standalone tool with a simple GUI interface. Run SPARQL on your local or remote RDF files, or through SPARQL endpoints.

Trac is a web-based software project management and bug/issue tracking system emphasizing ease of use and low ceremony. It provides an integrated Wiki, an interface to version control systems, and a number of convenient ways to stay on top of events and changes within a project.

The Windows Azure platform offers a flexible, familiar environment for developers to create cloud applications and services. With Windows Azure, you can shorten your time to market and adapt as demand for your service grows.

“ The Semantic Web is a project that intends to create a universal medium for information exchange by putting documents with computer-processable meaning (semantics) on the World Wide Web.” Wikipedia: Semantic Web

The NeOn toolkit is a state-of-the-art, open source multi-platform ontology engineering environment, which aims to provide comprehensive support for all activities in the ontology engineering life-cycle. The toolkit is based on the Eclipse platform, a leading development environment.

2005年の記事ではふたつのアプローチを紹介しました。その後、ふたつ別のアプローチを知りました。