Enterprise Service Bus ensures the security of exchanges between source and target of an information system. The central component of a bus can be represented by a channel for information flow between applications. An ESB mission is to provide data guaranteed delivery and their persistence. Other features linked with Blueway ESB are dynamic routing information, transformation mechanisms and management of queues, authentication, encryption … All Blueway modules (EAI, ETL, BPM, Mashup..) connect natively to Blueway ESB. An ESB is often associated with the concept of Service-Oriented Architecture (SOA).