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Hello World: WebSphere Enterprise Service Bus

Develop message flow for protocol transformation

Abelard Chow (abchow@ca.ibm.com), Advisory Software Developer, IBM
Abelard Chow
Abelard Chow is an Advisory Software Engineer with the IBM Scenario Analysis Lab, where he works on improving the cross-brand integration capability of IBM Software Group products. In the last few years, he served IBM customers as a Solution Architect in IBM Financial Industry Solution.
Bill Zhu (billzhu@ca.ibm.com), Software Developer, IBM
Bill Zhu is a software developer in the Scenario Analysis Lab team at the IBM Toronto Lab. His areas of expertise include solution design and implementation, e-commerce software, and messaging systems.

Summary:  Learn how to build message flow for protocol transformation. This tutorial demonstrates protocol transformation characteristics of WebSphere® Enterprise Service Bus. This is the fifth tutorial in the "Hello, World" series, which provides high-level overviews of various IBM® software products. WebSphere Enterprise Service Bus is designed to meet the connectivity and integration needs of Web Services applications and data. Customers who are interested improving their competitive edge with business transformation should consider an Enterprise Service Bus solution leveraging one of IBM's ESB products, such as WebSphere Enterprise Service Bus.

View more content in this series

Date:  07 Nov 2006
Level:  Intermediate PDF:  A4 and Letter (1193 KB | 27 pages)Get Adobe® Reader®

Activity:  45830 views
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Introduction

What is WebSphere Enterprise Service Bus?

WebSphere Enterprise Service Bus is a new IBM product that entered the market in late 2005. It is designed to meet the connectivity and integration needs of Web Service applications and data. WebSphere Integration Developer is the development platform for WebSphere Enterprise Service Bus. It provides a flow editor, which allows developers to build meditation modules that deploy on WebSphere Enterprise Service Bus, as part of the Service Component Architecture (SCA). WebSphere Enterprise Service Bus, together with WebSphere Integration Developer and Service Component Architecture, allows developers to build, to deploy and to manage Enterprise Service Bus solutions.

The following diagram illustrates how WebSphere Enterprise Service Bus relates to other WebSphere server editions:


Figure 1. WebSphere Enterprise Service Bus and other WebSphere server editions
WESB and other WebSphere server editions

Customers can realize the following benefits when using an Enterprise Service Bus business transformation solution, such as WebSphere Enterprise Service Bus:

  • Reduce development and maintain costs by moving to a service base architecture.
  • Improve business responsiveness by getting products to the market faster.
  • Increase customer satisfaction by improving product quality and delivery speed.
  • Maximize return on assets by reusing existing business process.
  • Bring new products to the existing customer with cross selling.
  • Outwit the competitors by building differentiated applications.

WebSphere Enterprise Service Bus key concepts

Key concepts Definition
Service requester and service providerTwo types of application connect to an Enterprise Service Bus -- service requesters and service providers. Service requesters are applications that require service from another application on an ESB. Service providers are applications that provide service to other applications on an ESB.
Mediation moduleA mediation module is an SCA artifact that processes and mediates message flows between service requesters and service providers.
Mediation flowMediation flow contains high-level mediation logic. It describes how messages flow between service requesters and service providers.
Mediation primitiveMediation primitives are nodes connected within mediation flows. They contain programming logic that performs specific business or system functions.
Service message objectService message objects are enhanced service data objects. It is an abstract layer for message processing between service requesters and service providers.
Application serverMediation modules are deployed on a WebSphere Enterprise Service Bus-enabled application server.


WebSphere Enterprise Service Bus key features

WebSphere Enterprise Service Bus provides the following features in addition to those provided by WebSphere Application Server:

  • Routes messages between services
  • Converts transportation protocol between service requesters and service providers
  • Transforms message formation between service requesters and service providers
  • Handles business events

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