Apache ActiveMQ which, in our opinion, is the most powerful open source Message Broker and Enterprise Integration Patterns provider available

 Prado --

PRADO^TM is a component-based and event-driven programming framework for developing Web applications in PHP 5. PRADO stands for PHP Rapid Application Development Object-oriented.

Browse some documentation for the PRADO framework.

Doxygen  --

Doxygen 1.5.4 (release date 27-10-2007) is a documentation generation system for C++, C, Java, Objective-C, Python, IDL (Corba and Microsoft flavors) and to some extent PHP, C#, and D.

Browse some documentation for Doxygen

Guess  --

GUESS is an exploratory data analysis and visualization tool for graphs and networks. The system contains a domain-specific embedded language called Gython (an extension of Python, or more specifically Jython) which supports the operators and syntactic sugar necessary for working on graph structures in an intuitive manner. An interactive interpreter binds the text that you type in the interpreter to the objects being visualized for more useful integration. GUESS also offers a visualization front end that supports the export of static images and dynamic movies.

OpenRPT: xTuple's open source SQL report writer

As part of the OpenMFG ERP Suite (and the PostBooks open source version), which is built with the PostgreSQL database and the Qt GUI client framework, xTuple built its own SQL report writer from scratch. Like the ERP, it runs equally well on Windows, Linux, and Mac OS X. We call it OpenRPT.

OpenRPT is released under the
GNU Lesser General Public License

Marketcetera Trading Platform

An alternative to expensive, monolithic proprietary trading systems, the Marketcetera Platform is a comprehensive open-source software infrastructure of ready-to-use components which gives users maximum flexibility.