The work of CCITT in the field of telematic services -- NBS Program in Open Systems Interconnection (OSI) -- OSI and research -- Management in OSI -- Considerations for security in the OSI architecture -- ISDN-technology, networking concepts and applications -- Telecommunications trends in Europe -- SNA: Recent advances and additional requirements -- Integration of group communication into CCITT X.400 message handling systems -- Directory system requirements and the CCITT-model -- Database access in open systems -- Manufacturing automation protocol (MAP) OSI for factory communications -- Communication support for distributed processing: Design and implementation issues -- Commitment, Concurrency, and Recovery — ISO-CASE and IBM LU.62 -- Communication primitives in programming and specification languages -- Experiences with the accent network operating system -- Network operating system kernels for heterogeneous environments -- Request-response and multicast interprocess communication in the V kernel -- Communication support in operating systems for distributed transactions -- Replicated distributed processing -- Formal specification in OSI -- The dimension of time in protocol specification -- From protocol specification to implementation and test -- Methodology and framework for OSI conformance testing -- European harmonisation of OSI usage and conformance testing services -- ENC - IBM European Networking Center.

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.