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    | • | 
    The
    Problem 
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    Tightness
    of Coupling & Explicit Semantics 
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    Semantic
    Integration Implies Semantic Composition 
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    Dimensions
    of Interoperability & Integration 
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    Ontologies 
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    The Ontology
    Spectrum 
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    What are
    Ontologies? 
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    Levels of
    Ontology Representation 
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    What Problems
    do Ontologies Help Solve? 
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    Ontologies
    for Semantically Interoperable Systems 
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    Enabling
    Semantic Interoperability 
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    Examples 
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    Visions 
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    What do We
    Want the Future to be? 
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