As NCW has appeared, the importance of interoperability in modern warfare has been also increased. Korean Defense has constructed and used the Systems Interoperability Test & Evaluation System based on LISI, in order to increase interoperability between Defense Information Systems. However, its evaluating targets are limited to only the information systems, so that it is difficult to apply it to weapon systems. This paper proposes an integrated interoperability assessment framework for korean embedded software of weapon systems based on reviewing the limitations of SITES and the other interoperability assessment models.