Browse Definitions :
Definition

IIOP (Internet Inter-ORB Protocol)

IIOP (Internet Inter-ORB Protocol) is a protocol that makes it possible for distributed programs written in different programming languages to communicate over the Internet. IIOP is a critical part of a strategic industry standard, the Common Object Request Broker Architecture (CORBA). Using CORBA's IIOP and related protocols, a company can write programs that will be able to communicate with their own or other company's existing or future programs wherever they are located and without having to understand anything about the program other than its service and a name. CORBA and IIOP are competing with a similar strategy from Microsoft called the Distributed Component Object Model (DCOM). (Microsoft and the Object Management Group, sponsors of CORBA, have agreed to develop software bridges between the two models so that programs designed for CORBA can communicate with programs designed for DCOM.)

CORBA and IIOP assume the client/server model of computing in which a client program always makes requests and a server program waits to receive requests from clients. When writing a program, you use an interface called the General Inter-ORB Protocol (GIOP). The GIOP is implemented in specialized mappings for one or more network transport layers. Undoubtedly, the most important specialized mapping of GIOP is IIOP, which passes requests or receives replies through the Internet's transport layer using the Transmission Control Protocol (TCP). Other possible transport layers would include IBM's Systems Network Architecture (SNA) and Novell's IPX.

For a client to make a request of a program somewhere in a network, it must have an address for the program. This address is known as the Interoperable Object Reference (IOR). Using IIOP, part of the address is based on the server's port number and IP address. In the client's computer, a table can be created to map IORs to proxy names that are easier to use. The GIOP lets the program make a connection with an IOR and then send requests to it (and lets servers send replies). A Common Data Representation (CDR) provides a way to encode and decode data so that it can be exchanged in a standard way.

A somewhat similar protocol, the Remote Method Invocation (RMI), was developed by Sun Microsystems to serve its cross-platform framework for the Java programming language. Sun has provided a way so that programming that uses the RMI can be mapped to IIOP.

This was last updated in January 2006

Continue Reading About IIOP (Internet Inter-ORB Protocol)

SearchCompliance
  • OPSEC (operations security)

    OPSEC (operations security) is a security and risk management process and strategy that classifies information, then determines ...

  • smart contract

    A smart contract is a decentralized application that executes business logic in response to events.

  • compliance risk

    Compliance risk is an organization's potential exposure to legal penalties, financial forfeiture and material loss, resulting ...

SearchSecurity
  • asymmetric cryptography (public key cryptography)

    Asymmetric cryptography, also known as public-key cryptography, is a process that uses a pair of related keys -- one public key ...

  • cryptography

    Cryptography is a method of protecting information and communications through the use of codes, so that only those for whom the ...

  • authentication

    Authentication is the process of determining whether someone or something is, in fact, who or what it says it is.

SearchHealthIT
SearchDisasterRecovery
  • What is risk mitigation?

    Risk mitigation is a strategy to prepare for and lessen the effects of threats faced by a business.

  • change control

    Change control is a systematic approach to managing all changes made to a product or system.

  • disaster recovery (DR)

    Disaster recovery (DR) is an organization's ability to respond to and recover from an event that affects business operations.

SearchStorage
  • tiered storage

    Tiered storage is a method for assigning different categories of data to various types of storage media to reduce overall storage...

  • secondary storage

    Secondary storage is persistent storage for noncritical data that doesn't need to be accessed as frequently as data in primary ...

  • optical storage

    Optical storage is any storage type in which data is written and read with a laser.

Close