Natural Language Understanding Systems (NLU) will not be widely deployed unless they are technically mature and cost effective to develop. Cost effective development hinges on the availability of tools and techniques enabling the rapid production of NLU applications through minimal human resources. Further, these tools and techniques should allow quick development of applications in a user friendly way and should be easy to upgrade in order to continuously follow the evolving technologies and standards. This paper presents a visual tool for the structuring and editing of dialog forms, the key element of driving conversation in NLU applications based on IBM technology. The main focus is given on the basic component used to describe Human – Machine interactions of that kind, the Dialogue Manager. In essence, the description of a tool that enables the visual representation of the Dialogue Manager mainly during the implementation phase is illustrated.
 M. Epstein, Statistical Source Channel Models for Natural Language Understanding", Phd Thesis, NYU University, Department of Computer Science, 1996.
 T. Ward, S.Roukos, C. Neti et. al. "Towards Speech Understanding across Multiple Languages" in the Proc. of the 5th International Language Processing, ICSLP 1998, Sydney Australia.
 K. A. Papineni, S. Roukos, and R. T. Ward, "Free-Flow Dialog Management Using Forms". Eurospeech 99, Budapest, Hungary, 1999.
 John Soldatos, Valia Demesticha "Visual FDM Builder Version 1.0 User-s Manual", May 2002
 Marion Mast, Thomas Ross, Henrik Schulz, Heli Harrikari, Vasiliki Demesticha, Lazaros Polymenakos, Yannis Vamvakoulas, Jan Stadermann: "A Conversational Natural Language Understanding Information System for Multiple Languages" in the Proc. of the 6th International Workshop on Applications of Natural Language for Information Systems Conference, Madrin Spain, June28-29, 2001, pp.177-186
 CATCH-2004 "Converse in Athens, Cologne and Helsinki", Annex I "Description of Work", IST Programme - Key Action III, Proposal number IST-1999-11103.
 Jeff Prosise, "Programming Windows with MFC", Microsoft Press 2nd Edition, May, 1999, ISBN: 1572316950.
 VoiceXML 2.0, W3C, http://www.w3.org/TR/2001/WD-voicexml20- 20011023, Working Draft.
 IBM, ViaVoice, http://www-3.ibm.com/software/speech/