A system for integrating and interoperating multiple heterogeneous applications, the system comprising: an Integrated Development Environment (IDE) to enable human users to define the integration and interoperation points of the multiple applications; a configuration file format based on which the IDE generates specific configuration instances; and a runtime engine that understands configuration files adhering to the file format and performs the necessary integration and interoperation actions on the various constituent applications that have been referred to in the configuration file.