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Today's emphasis on joint and combined military operations and the need to maximize the effectiveness of these operations has led to the need to better support interoperability among the various constituent communities. While the emerging net-centric infrastructure allows these communities and their systems to communicate, this dialog is often constrained by the lack of common semantic points of reference. For example, legacy databases often have custom schemas that represent the same information in disparate ways. Semantic Interoperability (SI) encompasses a broad range of technologies such as data mediation and schema matching, ontology alignment, and context representation that attempt to enable systems to understand each others semantics with minimal modification of the legacy systems. |
