HLA, stands for High Level Architecture, is an IEEE standard to provide interoperability among Modeling and Simulation (M&S) systems. HLA defines an XML-based format, called Object Model Template (OMT), to represent data and information exchange between systems. The problem with XML representation, though, is that it is incapable of providing semantic interoperability. On the contrary, using representations like ontology languages (OWL) is one practical approach to provide such interoperability. This thesis studies the state of the art of the generic XML to OWL mapping strategies, aims to identify the shortcoming in those strategies to accomplish a translation between HLA XML-based object model and OWL ontology, and, eventually, introduces a framework for such translation. The framework proposed in this study is implemented and evaluated using HLA object models defined in WISE, which is an M&S integration platform developed by SAAB.