Enterprise Service Bus (ESB)

An enterprise service bus (ESB) is a software architecture model used for designing and implementing the interaction and communication between mutually interacting software applications in Service Oriented Architecture

• ESB Evolution

http://www.youtube.com/watch?v=9Q8jjWHqSDs&feature=channel&list=UL

JMS and SOAP
routing messages from one point to another.there's a single point for incoming messages which are sent to
different destinations without revealing the sender's identity

• Enterprise Service Bus

http://www.youtube.com/watch?v=DrqfmgZF6Rs&feature=related

ESB is a software architecture which provides fundamental services for complex architectures via
event-driven and standards-based messaging-engine(bus)

Benefits
Divergence(branching off)integration methods:
standardization of API
enterprise application integration(EAI) frameworks/practices
re-usable interfaces
Reduces cost and cost of change:
loosely coupled architecture
change/support
management/monitoring

• WebSphere Enterprise Service Bus

IBM WebSphere Enterprise Service Bus ,for quick integration of applications and processes
http://www-01.ibm.com/software/integration/wsesb/#

• Microsoft BizTalk ESB

An Enterprise Service Bus (ESB) is an architectural pattern and a key enabler in implementing the infrastructure for a service-oriented architecture (SOA)
http://www.microsoft.com/biztalk/en/us/esb-guidance.aspx

• WebSphere Message Broker

IBM WebSphere Message Broker provides an Enterprise Service Bus (ESB) that has been designed for universal connectivity and transformation in heterogeneous IT environments.
http://www-01.ibm.com/software/integration/wbimessagebroker

• BEA AquaLogic Service Bus

BEA AquaLogic Service Bus is an intermediary for use as a core element of distributed services networks. It enables service-oriented architecture (SOA) allowing accelerated service re-use and deployment.
http://docs.oracle.com/cd/E13171_01/alsb/docs20/index.html

• Oracle Service Bus 

Oracle Service Bus transforms complex and brittle architectures into agile integration networks by connecting, mediating, and managing interactions between services and applications.
http://www.oracle.com/technetwork/middleware/service-bus/overview/index.html

• Open Source ESB Projects

• JBoss ESB

leverages JEMS technologies like the JBoss business rules engine for content-based routing and messaging.

• JBoss Fuse is an open source integration platform based on Apache ServiceMix. It is a service-oriented architecture (SOA) infrastructure that provides a standardized methodology, server, and tools to integrate application components

http://en.wikipedia.org/wiki/Fuse_ESB

• Red Hat JBoss Fuse

Open source enterprise bus
flexible, small-footprint enterprise service bus (ESB) that enables rapid integration across the extended enterprise—on premise or in the cloud.
http://www.redhat.com/en/technologies/jboss-middleware/fuse

• Apache ServiceMix

uses a JBI standard which provides a lot of components like JMS, BPEL, Web service, and Camel

• OpenESB

solid integration with the GlassFish Application Server and Sun's popular IDE, NetBeans
OpenESB's tools include WSDL and schema editors, a JPI manager integrated into the service manager, and Ant running in the background.

• MuleESB

Java centric

• Petals ESB, the distributed Open-Source Enterprise Service Bus

Petals ESB is an open-source Enterprise Service Bus (ESB) provided by the OW2 Middleware Consortium. More concretely, Petals ESB is a Java platform based on SOA principles to interconnect heterogeneous systems, applications and services
http://petals.ow2.org/