In this paper, we propose a framework supporting dynamic interoperation between heterogeneous workflow systems and workflow-based dynamic Enterprise Application Integration (EAI). To this end, based on Sub-flow Task Model and Multi-Tiered Dynamic State Transition Model, three major components are defined: communicator, connectors, and automator. Communicator is the inter-system communication component of EAI Platform. Communicator handles communication within EAI Platform, and together with the Connector, lets customers, partners, enterprise systems, and EAI Platform's own internal components exchange messages and information using a common interface. Connectors are the system integration components of EAI Platform. Connectors move data between systems-whether these systems are internal to your business enterprise, or belong to a business-to-business partner. Automator supports the Unified Modeling Language (UML) standard for process modeling and the Workflow Management Coalition (WfMC) standard for process automation systems.