ACSE/Presentation and ROSE Interface Programmer's Guide

102 Glossary
Glossary
Common Management
Information Protocol. the OSI
network management protocol.
Common Element. The OSI
application layer service element
for network management.
conformance adherence to a
product specification; along with
interoperability, a defining
characteristic of an OSI-
compatible product.
Connectionless network
service. The layer 3 network
layer that provides datagrams to
transmit data.
Connection oriented network
service. The layer 3 network
layer that provides end-to-end
connection (virtual circuit) to
transmit data.
CONS See Connection oriented
network service.
Corporation for Open Systems
a non- profit, multinational
consortium of computer users and
vendors whose primary mission is
to provide test procedures for
conformance to OSI.
COS See Corporation for Open
Systems
DARPA Defence Advanced
Research Projects Agency; a
branch of the Department of
Defense (U.S.) that developed a set
of networking protocols widely
used in engineering and
manufacturing.
Data Link Layer Layer 2 of the
OSI model; establishes rules for
transmission of data over the
physical medium.
de facto standard a networking
standard whose wide use makes it
an unofficial industry standard.
draft international standard
(DIS) the second stage of the
process by which ISO develops
standards; means the standard is
complete and stable.
draft proposal (DP) the first
stage in the development of ISO
standards; means the developers
believe the standard is technically
stable.
ECMA European Computer
Manufacturers Association.