Josh References Glossary O

An identifiable, encapsulated entity that provides one or more services on request; entities in a distributed computer environment that are being managed; a model of the physical resources that are to be managed.

object adapter
Routines which provide an interface to ORB services that is convenient for a particular style of object implementation. There are several kinds of object adapters, for example the Basic Object Adapter (BOA), the Library Object Adapter (LOA), and the Object-Oriented Database Adapter.

object group
A named logical entity to which one or more objects belong and over which an administrator is granted one or more roles.

object implementation
The provider of a service for a requestor (client); the Server.

Object Management Group (OMG)
Object Management Group, Inc. is a non-profit international association of over 300 companies headquartered in Framingham, MA, whose goal is to define an architectural object framework through a series of detailed interface specifications.

Object Request Broker (ORB)
Delivers a request from a client to an object implementation. ORB provides the mechanisms by which objects transparently make requests and receive responses, providing interoperability between applications on different machines in heterogeneous distributed environments.

object type
A set of objects that share a common interface; the characteristics that are common to a group of objects.

OC1, OC3, OC12, OC24, OC48, OC192
Optical carrier standards for telecommunications carriers. See speed for more details.

See Object Management Group (OMG).

Open Software Foundation (OSF)
An organization created to provide cross-platform software standards. Several common standards include the Distributed Computing Environment (DCE) and Motif.

See Object Request Broker (ORB).

See operating system (OS).

See Open Software Foundation (OSF).

Open Shortest Path First (OSPF)
A routing protocol where a route is chosen based on the fewest number of hops that do not pass through an over-congested router or network.

Open Systems Interconnection (OSI)
A model for implementing the protocols and interfaces to facilitate communications among computers of different manufacture and technology, being a seven-layer structure of (from lowest to highest) physical, data link, network, transport, session, presentation, and application.

operating system (OS)
The computer program or set of instructions that defines how a computer should operate. The underlying program running on a computer that allows the scheduling of jobs and the sharing of various system resources such as memory, disk space, and printers.

See Open Systems Interconnection (OSI).

See Open Shortest Path First (OSPF).

owner alias
An alias that points to the owner of a group alias triplet. See group alias.