As Modeling and Simulation(M&S) techniques develops, L-V-C training system is
-V-C system is used together, a heterogeneity problem of data types occurs. In this study, for integrating data formats that are different each other, L-V-C Object Data Linking Model is defined. In addition, Using Ontology that is one of Semantic Web techniques and converting uniform data format through L-V-C Ontology Modeling, we can get data interoperability. By using L-V-C Ontology Engine Library as an interface, external systems like L-V-C Gateway can use L-V-C Ontology. And, the data, which is used in L-V-C Training System has mapping information, can be confirmed by using the RelFinder that is an Ontology visual tool.