The International Conference on Production Research has a good tradition: The fIrst Conference was held in Birmingham 1971 with 61 participants. With respect to the decision that the Conference should be held every second year, by this time the Conference has been held in the following countries: Birmingham (1971, UK), Copenhagen (1973, Denmark), Amhurst (1975, USA), Tokyo (1977, Japan), Amsterdam (1979, The Netherlands), Novi Sad (1981, Yugoslavia), Windsor (1983, Canada), Stuttgart (1985, Germany), and the next Conference will take place in Cincinnatti (1987, USA). The number of submitted abstracts and papers was continuously increas­ ing such that the Programme Committee of this actual 8th Conference on Production Research has been forced to introduce a further refereeing procedure. Each submitted abstract was presented to at least two referees. This resulted not only in a reduction of the number of presented full papers and poster contributions but, as the Programme Committee and the Editiors hope, it led also to a considerable increase in the scientifIc quality of this 8th International Conference on Production Research. The preceeding conference in Windsor, Canada, was dedicated to the topic: Production Research as a Means of Productivity Improvement. We don't believe that this statement has become untrue in the meanwhile.