"It's really about using open standards and open metadata ... as your foundation of integration, which means that you don't really end up with this problem of multiple ESBs that don't communicate. You end up with a single fabric that's completely based on standards, and you happen to have some useful management endpoints within that fabric," said Paul Fremantle, cofounder and vice president of technology at WSO2.

WSO2 has entered the open source SOA (service-oriented architecture) field with a slate of veterans from Web services specifications, application server design and lightweight framework development. The company's latest offering to the market came June 11 with the arrival of WSO2 ESB 1.0, based on Apache Synapse and targeted at both developers who want to use enterprise service buses (ESBs) quickly, as well as operations architects seeking lightweight and high-performing components.