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DataPhase and Uninet announce Data Share

Library Systems Newsletter [October 1984]

DataPhase Corporation, a turnkey vendor of automated library systems, and Uninet, a public data network similar to Telenet and Tymnet, have announced a joint venture agreement to develop a national network to link automated library systems and to facilitate access to library systems from terminals and personal micros in homes and offices.

The network will be based on the Open System Interconnection (OSI) Reference Model, the same standards model which underlies the development of the Linked Systems Project among the bibliographic utilities and the Library of Congress. The OSI Model, described elsewhere in this issue, was developed by the International Standards Organization and has already been widely adopted by manufacturers of hardware and developers of software. The Model envisions seven layers of linkages, from the lowest physical layer of interconnection to the highest layer which provides users of specific applications access to heterogeneous or incompatible systems.

Standards are generally available for the four lowest levels of the model, but are still under development for the higher levels. The best known of the existing standards are the layer one RS232C interface and the layer three X.25 standard for packet switching. The latter is fundamental to libraries searching of the remote data bases of BRS, Dialog, and SDC through Telenet and Tymnet.

Data Phase is writing software for the higher level layers for mounting on a Tandem minicomputer. Terminals and other computers will be able to access the network host through the Unmet communications network. Customers will gain access to the network by dialing a local number. Rather than paying for the length of time on the line, customers of the Data Share network will pay a flat rate per screen of information.

The first demonstration of Data Share was at the 103rd Annual American Library Association Conference in Dallas, where two Data Phase ALIS II and one ALIS III systems at widely scattered locations were alternately accessed. AXIS II and III are heterogeneous or incompatible systems because the former uses Data General hardware with MIIS/MUMPS and the latter uses Tandem hardware with COBOL.

Since the successful demonstration of the linkage among two heterogeneous or incompatible systems supplied by a single vendor, attention has shifted to the linking of systems from different vendors. At least one of the other major turnkey vendors has agreed to discuss possible interconnection through Data Share.

View Citation
Publication Year:1984
Type of Material:Article
Language English
Published in: Library Systems Newsletter
Publication Info:Volume 4 Number 10
Issue:October 1984
Publisher:American Library Association
Place of Publication:Chicago, IL
Notes:Howard S. White, Editor-in-Chief; Richard W. Boss and Judy McQueen, Contributing Editors
Company: DataPhase Systems, Inc.
Products: Data Share
Subject: Open Systems Interconnect
Record Number:4079
Last Update:2024-07-13 18:41:32
Date Created:0000-00-00 00:00:00