ESB Meaning & Definition

Short for Enterprise Service Bus, also referred to as a message broker. ESB is an open standards-based distributed synchronous or asynchronous messaging middleware that provides secure interoperability between enterprise applications via XML, Web services interfaces and standardized rules-based routing of documents.

In practice, this means that data files are passed to and from their destinations based on established guidelines that are common to all parties sharing the information to ensure that the data maintains its integrity as it is routed. The multi-language and multi-platform design of an ESB allows enterprises to process data between applications from various sources. Two common distributed computing architectures used by ESBs are J2EE and .NET.

ESB is an extension of EAI, an earlier form of middleware, but ESB adds several key functions:

  • transformation: The ability to transform XML documents from one data format into another so that the receiving party can interface with the data in an application format that is different from the one in which it is sent.
  • portability: The ability to share the data between different computer systems and operating environments.
  • load balancing/clustering: The ability to distribute processing among several devices so that no one device becomes overloaded
  • failover: The ability to transfer messaging functions to another server if one should fail during the data exchange.

Sonic ESB, Cape Clear Server and PolarLake Jintegrator are examples of commercial ESB products.

Vangie Beal
Vangie Beal
Vangie Beal is a freelance business and technology writer covering Internet technologies and online business since the late '90s.

Top Articles

The Complete List of 1500+ Common Text Abbreviations & Acronyms

Text Abbreviations reviewed by Web Webster   From A3 to ZZZ we list 1,559 SMS, online chat, and text abbreviations to help you translate and understand...

How to Create a Website Shortcut on Your Desktop

Website Shortcut on Your Desktop reviewed by Web Webster   This Webopedia guide will show you how to create a website shortcut on your desktop using...

Windows Operating System History & Versions

The Windows operating system (Windows OS) refers to a family of operating systems developed by Microsoft Corporation. We look at the history of Windows...

First to Fifth Generations of Computers

Reviewed by Web Webster   Learn about each of the 5 generations of computers and major technology developments that have led to the computing devices that...

Hackerspace Definition & Meaning

What is a hackerspace? A hackerspace, also known as a hacklab, incubator, or hackspace,...

Random Access Memory (RAM)...

Random Access Memory (RAM) reviewed by Web Webster   Random Access Memory (RAM) is a...

OEM – original equipment...

OEM - Original Equipment Manufacturer reviewed by Web Webster OEM (pronounced as separate letters)...