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ESBs can be thought of as the next step in the logical progression described above. The ESB acts as a message broker to all applications in the enterprise. It allows for more granular, base functions to be exposed with orchestration provided as needed. This greatly improves the flexibility of the system and allows for more rapid and cheaper adaptation to changes.
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ESB in Context of SOA
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WSO2 ESB is a fast, light-weight and versatile Enterprise Service Bus product released under the Apache License v2.0. Using WSO2 ESB you can filter, transform, route and manipulate SOAP, binary, plain XML, and text messages that pass through your business systems by HTTP, HTTPS, JMS, mail, etc.
