Q. What does the ontology in OBDA help achieve?

View solution

Q. How does OBDA make the relationship between ontology concepts and relational data explicit?

View solution

Q. How does an ontology help in query answering in OBDA?

View solution

Q. What does the term "GAV" stand for in the context of OBDA mappings?

View solution

Q. How are mappings used to connect ontology vocabulary with the database schema?

View solution

Q. What is a prerequisite for OBDA technology?

View solution

Q. Why is end-user acceptance important in the context of OBDA?

View solution

Q. What feature is proposed to improve usability for non-technical users in OBDA systems?

View solution

Q. What does the proposed architecture aim to achieve?

View solution

Q. What is one of the challenges related to ontology and mappings in OBDA?

View solution

Q. How can an initial ontology and mappings be derived in new deployments of OBDA systems?

View solution

Q. What is the role of the Ontology and Mapping Management component in the architecture?

View solution

Q. Why is there a trade-off between expressivity and efficiency in ontology and mapping languages?

View solution

Q. How can the expressivity problem in ontology and mapping languages be resolved for specific applications?

View solution

Q. What are vital features that need to be built into the core of any OBDA system?

View solution

Q. Which domain often requires integration into the OBDA framework due to its relevance in many applications?

View solution

Q. What is one of the ways to address efficiency in OBDA systems?

View solution

Q. Which layer in the proposed query answering stack focuses on distributing queries to individual servers?

View solution

Q. What is the key to gaining a real impact on efficiency in OBDA systems?

View solution

Q. What is one of the key challenges in traditional database query languages like SQL?

View solution