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1994-10-23
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*---------------------------------------------------------------------------*
* Information on the Object Management Group (OMG) - September 1994 *
*---------------------------------------------------------------------------*
The Object Management Group (OMG) is an international software industry
consortium with two primary aims:
The promotion of the object-oriented approach to software
engineering in general, and development of command models and
a common interface for the development and also the use of
large-scale distributed applications (open distributed processing)
using object oriented methodology.
Although the OMG is not a recognized standards group (like ISO or
national bodies such as ANSI and IEEE), OMG is developing "standards"
in the form of wholesale consensus agreements between member companies,
leading to a single architecture and interface specification for
application and enterprise integration on both small and large scales.
The OMG was founded in April 1989, and continues to have a small, vendor
neutral core staff of seven people.
Now comprising of over 440 companies, the OMG membership is composed of
large and small hardware & software vendors such as ...
IBM, Microsoft, Canon, DEC, Philips, Olivetti, AT&T, Sun Microsystems,
Informix, ICL, Enfin Systems, Architecture Projects Management, Apple
Computer, O2 Technology, etc ...
... as well as end-user companies such as Citicorp, American Airlines,
Royal Bank of Canada, John Deere, etc. -- with a common standards area
and will be based, as far as possible, on existing, commercially
available products.
In late 1990, the OMG published its Object Management Architecture (OMA)
Guide document.
This document outlines a single terminology for object-oriented languages,
systems, databases and application frameworks; an abstract framework for
object-oriented systems; a set of both technical and architectural goals;
and an architecture (reference model) for distributed applications using
object-oriented techniques.
To fill out this reference model, four areas of standardisation have been
identified:
1) the Object Request Broker, or key communications element, for
handling the distribution of messages between application objects
in a highly interoperable manner.
2) the Object Model, or single design-portability abstract model
for communicating with OMG-conforming object-oriented systems.
3) the Object Services, which will provide the main functions for
realising basic object functionality using the Object Request
Broker - the logical modelling and physical storage of objects.
4) the Common Facilities will comprise facilities which are useful
in many application domains and which will be made available
through OMA compliant class interfaces.
The OMG adoption cycle includes Requests for Information and Proposals,
requesting detailed technical and commercial availability information
from OMG members about existing products to fill particular parts of the
reference model architecture.
After passage by Technical and Business committees to review these
responses, the OMG Board of Directors makes a final determination for
technology adoption. Adopted specifications are available on a fee-free
basis to members and non-members alike.
In late 1991 OMG adopted its first interface technology, for the Object
Request Broker portion of the reference model. This technology, adopted
from a joint proposal (named "CORBA") from Hewlett-Packard, NCR Corp.,
HyperDesk Corp., Digital Equipment Corp., Sun Microsystems and Object
Design Inc. includes both static and dynamic interfaces to an
inter-application request handling software "bus."
1992 saw the availability of the published CORBA (Common Object Request
Broker Architecture) specification and the adoption of CORBA Version 1
by over 50 computer manufacturers and software developers.
Public support for CORBA grew during 1993 to embrace over 80 companies.
13 Letters of Intent were received in December 1993 regarding technology
submissions in RFPs, for CORBA 2.0.
The agreement of and availability of the CORBA 2.0 technical
specification are likely to be determining events in the establishment
of object technology.
Objects created in a CORBA 1-based environment will not necessarily be
able to interoperate with objects created in another CORBA 1-based
environment. One of the key elements of the CORBA 2.0 technical
specification is that interoperability of any and all CORBA 2.0 created
objects is guaranteed.
OMG believes that the consensus on object (software) inter agreement of
the CORBA 2.0 specification is expected by the end of 1994.
In March 1994, CORBA 2.0 technology submissions were received by OMG from the
following companies/groups of companies:
OSF, Hewlett-Packard, DEC, NEC and Hyperdesk; SunSoft and Iona T
echnologies; IBM; Symbiotics; Expersoft; Bell Northern Research Europe;
and ICL.
A major breakthrough is the definition of technical standards in Object
Services which was achieved in November, 1993 with the agreement on
Volume 1 of OMG's Common Object Services Standard (COSS).
This standard defines the four common services - Object Naming, Object
Events, Life Cycle and Persistent Object Service - on which most of
the 16 other OMG identified Object Services depend.
Unlike other organisations, the OMG itself does not and will not develop
nor sell software of any kind. Instead, it selects and promulgates
software interfaces; products which offer these interfaces continue to
be developed and offered by commercial companies.
OMG's standards creation process is enabled through the activities of the
OMG Technical committee (TC). The TC is made up of Subcommittees, Task
Forces and Special Interest Groups (SIGs).
The current Subcommittees are Liaison, Reference Model, Policies and
Procedures, Requirements and Object Model.
The current Task Forces are Common Facilities, Object Request Broker
(plus ORB Revision Task Force and CORBA/COM Interoperability Task Force)
and Object Services Task Force (plus Object Services Revision Task Force).
In order to serve OMG membership interested in other object-oriented
systems arenas besides the distributed system problem, the Group supports
Special Interest Groups for discussion of possible standards in other
areas.
These groups at present are:
1) Analysis & Design;
2) Business Object Management;
3) Class Libraries;
4) Databases;
5) End-User Requirements;
6) Manufacturing;
7) Parallel Object Systems;
8) PCTE; and
9) Smalltalk.
Any company, university/research institution or individual, whether
end-user or vendor, can become a member of this body.
Administrative details:
Dr. Richard Mark Soley
Vice President & Technical Director
Object Management Group, Inc.
Framingham Corporate Center
492 Old Connecticut Path
Framingham, MA 01701-4568
U.S.A.
Telephone: +1-508-820 4300
Fax: +1-508-820 4303
Email: soley@omg.org
For information packages and membership information, please contact OMG
Headquarters at the above numbers or the OMG representatives in your
geography detailed below, or via omg@omg.org.
For Central Europe, contact:
Roberto Zicari
LogOn Technology Transfer GmbH
Burgweg 14a
D-61476 Kronberg (Ts.)
Germany
Telephone: +49 6173 2852
Fax: +49 6173 940420
Email: roberto_zicari@omg.org
For Japan, contact:
Hiroki Kamata
Soken Planning Co., Ltd.
601 Nambuzaka Annex
2-22-19, Akasaka, Minato-ku
Tokyo 107
Japan
Telephone: +81 3 3585 7595
Fax: +81 3 3589 1903
Email: hiroki_kamata@omg.org
For the UK, contact:
Eric Leach
Eric Leach Marketing Ltd.
2 Bell Road
Hounslow
Middlesex TW3 3NN
United Kingdom
Telephone: +44 81 570 2182
Fax: +44 81 572 3163
Email: eric_leach@omg.org