Summary: "This white paper describes an open source solution, based on a messaging system compliant with the JMS specification that meets the requirements for an Enterprise Service Bus."

Extract: "Services available besides the JMS API (i.e. the agent API and the mediation components framework) provide an adequate technological basis for the construction of data
integration solutions (e.g. real time ETL), workflows systems, Business Process Management and Business Activity Management systems. The cost of developing and deploying these solutions would be much lower than using a packaged product with a better adequacy to the targeted usage."

Full white-paper: