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Data Communications and OSI.
Peer reviewed Peer reviewed
Denenberg, Ray – Library Hi Tech, 1990
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…
Descriptors: Computer Networks, Computer System Design, Information Networks, Information Systems
Network Directory Services.
Peer reviewed Peer reviewed
Planka, Daniela – Library Hi Tech, 1990
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.…
Descriptors: Computer Networks, Computer System Design, Directories, Information Networks
OSI Upper Layers Support for Applications.
Peer reviewed Peer reviewed
Davison, Wayne – Library Hi Tech, 1990
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,…
Descriptors: Computer Networks, Computer System Design, Information Networks, Information Systems
The ISO Edi Conceptual Model Activity and Its Relationship to OSI.
Peer reviewed Peer reviewed
Fincher, Judith A. – Library Hi Tech, 1990
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…
Descriptors: Computer Networks, Computer System Design, Information Networks, Information Systems
OSI Conformance Testing for Bibliographic Applications.
Peer reviewed Peer reviewed
Arbez, Gilbert; Swain, Leigh – Library Hi Tech, 1990
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)
Descriptors: Computer Networks, Computer System Design, Evaluation Methods, Information Networks
X.400: The Standard for Message Handling Systems.
Peer reviewed Peer reviewed
Swain, Leigh; Tallim, Paula – Library Hi Tech, 1990
Profiles X.400, the Open Systems Interconnection (OSI) Application layer standard that supports interpersonal electronic mail services, facsimile transfer, electronic data interchange, electronic funds transfer, electronic publishing, and electronic invoicing. Also discussed are an electronic directory to support message handling, compatibility…
Descriptors: Computer Networks, Directories, Electronic Mail, Facsimile Transmission
The Information Network: Its Structure and Role in Higher Education.
Peer reviewed Peer reviewed
Van Houweling, Douglas E. – Library Hi Tech, 1987
Summarizes the historical trend of distributing computer power within universities, and describes a model for an information technology environment for higher education. Based on a broad distribution of information and computing power, this model allows users to share information using micro- and minicomputers. (CLB)
Descriptors: Access to Information, Cost Effectiveness, Decentralization, Higher Education