How to enhance interoperability between stakeholders and improve efficiency of supply chain management is the key issue that needs to be addressed in automobile industry. Existing interoperability solutions are suitable only for large enterprises, however, small and medium-sized enterprises (SMEs) lack cheap, easy to integrate and easy to customize solutions. This paper proposes a methodology that provides a guide on how to establish interoperability between enterprises through a federated approach. An interoperability service platform is designed and delivered in the form of Software as a Service (SaaS). This paper introduces the specifications of the service platform and proposes an interactive framework which is used to establish interoperability between the service platform and other on-premise applications.