ARPA Network Data Management Working Group
RFC 316

Document Type RFC - Unknown (February 1972; No errata)
Last updated 2013-03-02
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Network Working Group                                        D. B. McKay
Request for Comments: 316                                 A. P. Mulleray
NIC: 9346                                                            IBM
                                                  February 23 & 24, 1972

               ARPA Network Data Management Working Group

   The meeting had two different phases.  The first included
   presentations of applications of networks and development work in the
   design to allow data sharing in a computer network, the second was a
   working meeting in which was discussed what the data management
   working group should do.

Phase I

   JOHN SENIOR, Univ. of Penn. and National Board of Medical Examiners,
   Phila., PA., described the use of a network to provide access to
   models that simulate medical behavior of patients.  These models are
   used primarily for teaching and testing physicians.  The network
   provides an interface by which varieties of terminals can connect to
   and access these models.  Other data bases exist to which access
   through a network may be desirable; however, these data bases have a
   "polyglot" of organizations making it presently impossible to use
   foreign data bases.

   HECTOR MAYNEZ, National Library of Medicine, described the MEDLINE
   system.  This has 1000 journals on-line to which access can be made
   via a network.  This network, as the one above, provides the
   interface for access by various terminals.  In this network are four
   or five computers with other applications such as CAI, clinical
   diagnosis, etc.

   RAY BEVERIDGE, MITRE, presented the requirements for the WWMCCS
   (World Wide Military Command and Control System) Network.  This
   network will contain 25 nodes and have a data exchange rate of the
   order of 10,000,000 characters per day.  Three type of data were
   formulated - query data with response on the order of seconds, daily
   exchange for updates and reports, and other data for weekly, monthly
   or as required reports.

   ERICA PEREZ, MITRE, discussed data management for the WWMCCS Network.
   The two problems are determining the location of desired data, and
   providing the proper security and reliability for vital data.  The
   location of data bases will be indicated in directories which may
   automatically determine which segment is applicable to a query.  The
   directory will contain lists of data bases, files users and programs.

McKay & Mulleray                                                [Page 1]
RFC 316              Data Management Working Group         February 1972

   The directory can be centralized (all at one location), distributed
   (split into pieces but where each piece resides at one location)
   partially replicated (split into pieces but in which certain parts
   may be replicated at different locations) and completely replicated
   (the complete directory at all locations).

   The data management system will have to deal with possibly different
   hardware systems and even different local data managements systems.
   One solution is to have a standard data management and data
   description language for transmission of requests and data in the
   network.

   The system will have to provide capabilities for file transfer,
   queries, remote batch, and for user communication via a mail box.
   The security of the data is maintained by checking user id, terminal
   authorization, process authorization and data authorization.

   BOB BROWN, General Motors Research Lab., described the network of
   computers at the General Motors Research Center.  This network at
   present consists of an IBM 360/67, a 360/65, a 370/165, three 1800's
   and a Sigma 5.  All of these are primarily for graphics use except
   the 67 and the 165.  An example of how data passes through the
   network was given.  The styling department develops a design on an
   1800.  Data on this design is sent to the 67 for stress and shape
   analysis and the results returned to the 1800.  After a design is
   developed, it is sent to the 65-1800 combination for detailed
   analysis for production.  Many of the computers are running GM's own
   operating systems, and the network control consists of macros added
   to these operating systems.  Interfacing is done by providing
   specific conversion modules to the called when the specific
   conversion is required.  The 67 will eventually be replaced by a
   hierarchical multiprocessor based on the CDC Star-100.

   PHIL MESSING, MITRE,  is setting up an experiment to test the
   practicability of interfacing a network standard data management
   language with local data management systems.  In this experiment, a
   user will make a request in the network language, this request will
   be transmitted to a node, and translated to the language of this
   local node.  At present, three local systems have been selected to be
   used - MADAM at MIT, LISTAR and Lincoln Labs., and NASIS at
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