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Question

What is a key feature of any Ontology-Based Data Access (OBDA) system regarding the ontology?

a.

The ontology should be complex and specialized.

b.

The ontology must match the structure of underlying data sources.

c.

The ontology needs to provide a user-oriented conceptual model.

d.

The ontology should be designed for expert users only.

Posted under Big Data Computing

Answer: (c).The ontology needs to provide a user-oriented conceptual model. Explanation:A key feature of OBDA systems is to provide a user-friendly conceptual model through the ontology, allowing users to formulate natural queries.

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Q. What is a key feature of any Ontology-Based Data Access (OBDA) system regarding the ontology?

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