Hi there, I stumbled upon this highly interesting link: http://oxygen.informatik.tu-cottbus.de/handbook/?q=objectives Those guys prepare to compile an extensive book on rule-based systems .... a thing the world definitely needs!! I'd love to participate, but the deadlines don't fit my current schedule - bad luck for me... regards from Cologne, Gernot Starke Dr. Gernot Starke Doing IT Right NEU: http://www.esabuch.de --- Willi-Lauf Allee 43, D-50858 Köln gs(a)gernotstarke.de, +49 (0) 177 - 728 2570 http://www.gernotstarke.de Blog: http://it-and-more.blogspot.com **************************************** Das freie Portal für Software-Architekten: http://www.arc42.de