OpenLink Virtuoso is a scalable, high-performance SQL-200n compliant object-relational database engine. It provide sophisticated database management for SQL, XML, and RDF. All interaction with Virtuoso occurs via its support of industry standard query languages, protocols, APIs, and data formats such as: ODBC, JDBC, OLE-DB, ADO.NET, XMLA, SQL, SPARQL, XQuery, SOAP, HTTP, WebDAV, SyncML, Atom (Publishing and Syndication), RSS, RDF, and more.
RSP is a retargetable language for writing portable Web applications. Web applications can be written once in RSP and then compiled, using the RSP compiler, to either ASP, JSP or PHP. The RSP language is syntactically similar to Java/JSP. It is strongly typed and pseudo object orientated. Its standard library contains functions and objects for common Web programming tasks and database abstraction.
Spring is a lightweight Java/J2EE application framework based on code published in "Expert One-on-One J2EE Design and Development" by Rod Johnson. It includes powerful JavaBeans-based configuration management applying Inversion-of-Control principles, a generic abstraction layer for transaction management allowing for pluggable transaction managers, a JDBC abstraction layer, integration with Hibernate, JDO, Apache OJB, and iBATIS SQL Maps, AOP functionality, and a flexible MVC Web application framework with multiple view technologies. There is also a .NET port available.
PHP System Administration Toolkit is a toolkit/framework for the rapid development of system and network administration Web interfaces in PHP. It tries to take as much common work from the developer as possible, and provides object-oriented interfaces to many common services. It aims to make the applications built using it easily customizable, extensible, and maintainable.
Paragon is a powerful, robust, and flexible fast application development framework. It contains a structured library of extensible components used for modelling real world objects and processes, and is a true 3-tier system defining an abstraction between the presentation, business logic, and data access layers. It provides a set of extensible APIs for modelling custom business logic and employs a simplified Model-View-Controller design paradigm. APIs are also provided for a multi-lingual and mark-up agnostic graphical user interface display, relational database connection and communication, and more.