A gateway data proxy is a system which provides the capabilities to provide and obtain the customized data across multiple platforms to facilitate the remote operations of embedded health management systems (EHMS). The system allows the collaborative works taken place among the EHMS from diagnostics, prognostics, maintenance, to maintenance history tracking. Depending on deployment needs, the system can operate as stand-alone systems or as an integrated module of the EHMS. As part of operation, the system provides logical network connection and be the broker of data between EHMS instances and between EHMS with onboard systems and other service applications.