=============== Acknowledgement =============== The SATIS collection cosists in a whole lot of little tips and tricks that would never have occurred to a single person. It wouldn't have been achieved without all the minor and major helpers to whom I want to express my appreciation here. First of all I want to give prominence to Mr. Michel Drescher, Paulusplatz 10, 33602 Bielefeld, who as my assistant has attended on the whole coming into being of the collection with his competence as a student of informatics and who has supported me very much. I want to thank Mrs. De Leuw in Brussels who has made possible the translation into English from the funds of the HELIOS programme of the EU, and Ulrike Drescher who has carried out this translation with carefulness and patience. I want to thank Nancy Wauquaire, University of Mons (Belgium), for the translation (of the 1.3 version) into French at the university of Mons (Belgium) within the scope of a thesis. The recent version will also be translated into French. I can't enumerate all the "minor" helpers. Representative for others I mention a number of names: Eike Peter Falk, Dr. Gnther Gerull, Jan Hellbusch, Herr Ighisan, Ingo Lembke, Helmut Mynarek, Markus Reinsch, Dr. Dieter Schll, Dr. Gerhard Weber, Ulrich Zeun, Roland Zier, and, last not least my wife Ilse, who didn't loose patience and overview all the time. I hope the collection will in future be further supported by its readers and users and other helpers, perhaps it will even be sponsored from public funds. Bielefeld, July 7th, 1996 Konrad Gerull