Describes the layered model of Open Systems Interconnection (OSI); summarizes the three upper and lower layers; and discusses data communications standards associated with specific layers. Architectural concepts are explored, including hierarchy and abstraction, levels of dialogue, internetworking, and end-to-end communication. OSI is compared…

The report of these two hearings on high definition information systems begins by noting that they are digital, and that they are likely to handle computing, telecommunications, home security, computer imaging, storage, fiber optics networks, multi-dimensional libraries, and many other local, national, and international systems. (It is noted that…

Explains how the Directory Service (CCITT X.500/ISO 9594) became an international standard in response to the difficulties of keeping data on information network users current and accessible. Uses of X.500 are described, a technical overview is provided, its functions and protocols are assessed, and directory projects and products are discussed.…

Management of heterogeneous networks is complicated by the persistence of proprietary management schemes. The need for integration of network management capabilities is pressing. The International Organization for Standardization is developing standards for managing networks as part of the Open Systems Interconnection (OSI) effort. OSI management…

Reviews some of the projects and organizations concerned with promoting conformance and interoperability testing of Open Systems Interconnection (OSI) products and describes OSI products available from computer manufacturers and vendors. A list of references includes 57 articles that mention specific vendors and 11 general articles about OSI…

Discusses how various Open Systems Interconnection (OSI) application layer protocols can be used together, along with the Presentation and Session protocols, to support the interconnection requirements of applications. Application layer protocol standards that are currently available or under development are reviewed, and the File, Transfer,…

The edi conceptual model is being developed to define common structures, services, and processes that syntax-specific standards like X12 and EDIFACT could adopt. Open Systems Interconnection (OSI) is of interest to edi because of its potential to help enable global interoperability across Electronic Data Interchange (EDI) functional groups. A…

Describes the emergence of Open Systems Interconnection (OSI) as it relates to the U.S. Government Open Systems Interconnection Profile (GOSIP); defines GOSIP; and speculates about its future. Challenges facing GOSIP that are related to test policies and procedures, strategic and tactical planning, additional functionality, and international…

This hearing explores how the High Performance Computing and Communications Program (HPCC) relates to the technology needs of industry. Testimony and prepared statements from the following witnesses on future effects of computing and networking technologies on their companies are included: (1) F. Brett Berlin, president, Brett Berlin Associates,…

The objectives of this Congressional hearing on high definition information systems were: (1) to receive testimony on standards for systems that permit interoperability between the computer, communications, and broadcasting industries; (2) to examine the implications of the Grand Alliance, an agreement by high definition television (HDTV)…

Describes the function of the Open Systems Interconnection (OSI) Z39.50 protocol, which allows for construction of information "servers"--i.e., resources attached to a computer communications network that can be accessed by client machines to retrieve information. The relationship of Z39.5 to other OSI protocols is explained. (23…

Discusses changes and improvements in the integrated services digital network (ISDN) that have caused ISDN to reemerge as a viable, cost-effective technology for use in home and office workstations. Reviews changes in demand, standards, availability, ease of use, and cost, and displays a diagram of a typical ISDN terminal adapter setup. (JMV)

Previews the U.S. Postal Service's Postal Buddy, a self-service customer kiosk which uses multimedia computer applications to provide cost-effective and improved postal services to customers. Services are outlined, including change of address services and provision of relocation information. (EA)

Describes the development of Open Systems Interconnection (OSI) conformance testing sites, conformance testing tools, and conformance testing services. Discusses related topics such as interoperability testing, arbitration testing, and international harmonization of conformance testing. A glossary is included. (24 references) (SD)

The purpose of this study was to examine problems with the current computer-based electronic communication systems and to initially test and revise a new and different paradigm for e-collaboration, Relate@IU. Understanding the concept of sending links to resources, rather than sending the resource itself, is at the core of how Relate@IU differs…