Pretty Damn Quick (PDQ) analytically solves queueing network models of computer and manufacturing systems, data networks, etc., written in conventional programming languages. Generic or customized reports of predicted performance measures are output.
OLAP aggregation engine with MDX support, web interface (slice & dice) and relational database backend. See "Documentation" for more. Presentation: http://cubulus.sourceforge.net/. See online demo courtesy of Webfaction, http://alxtoth.webfactional.com
Information manager based on 3D cubes of knwoledgments. You can create a cube with 3 axis (or dimensions), each of them with several elements. The nexus between the elements of three axis compounds a value. From a cube, you can create 2D view queries