The contributions provide an overview of research in tele-
communications and distributed systems. The main part con-
concentrates on the evaluation of the CCITT recommendations
and ISO standards with respect to OSI and ISDN and user ser-
vices. It also reviews new applications that are becoming a-
vailable in modern offices, manufacturing, and the public
domain. Different approaches are discussed as to how these
applications can be builtmore easily with advanced program-
ming rools. Deals with operating systems support for commu-
nication systems.