Simware is a distributed simulation architecture that facilitates interoperability and reusability in simulation systems, aligning with the SISO LSA vision and ensuring compliance with OMG DDS standards. It addresses market challenges such as heterogeneous ecosystems and the lack of common data protocols by providing a data-centric middleware solution based on DDS and HLA frameworks. Simware enhances the development and integration of critical simulation models and services for effective system training and testing.