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Query. Mediator Services API. Deductive Engine. Mediator Layer. Query Formulation. Source Model Lifting. Model Reasoner. Optimizer. Query Processing. Source Registration. Wrapper Layer. Query interface. Result interface. SRB. OODB. Files. RDB. XML. HTML.
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Query Mediator Services API Deductive Engine Mediator Layer Query Formulation Source Model Lifting Model Reasoner Optimizer Query Processing Source Registration Wrapper Layer Query interface Result interface SRB OODB Files RDB XML HTML