WSO2 EI is a unified distribution of WSO2 Enterprise Service Bus and Data Services Server, which works as a single runtime (Integrator) along with optional runtimes for EI Analytics, Business Processor and Message Broker. This product distribution includes a shared component directory, with profile-based management capabilities for each runtime.
WSO2 EI 6.6.0 is developed on top of the revolutionary carbon platform (Middleware a' la carte), and is based on the OSGi framework to achieve the better modularity for your SOA architecture. This also contains a lots of new features and many other optional components to customize the behavior of the server. Further, if you do not want any of the built in features, you can uninstall those features without any trouble. In other words, this EI can be customized to your SOA needs.