ONTOLOGY-BASED DATA ACCESS TO HETEROGENEOUS DATA SOURCES: STATE OF THE ART APPROACHES AND APPLICATIONS
Fathy, N., Gad, W., Badr, N., Hashem, M. (2022). ONTOLOGY-BASED DATA ACCESS TO HETEROGENEOUS DATA SOURCES: STATE OF THE ART APPROACHES AND APPLICATIONS. EKB Journal Management System, 22(2), 74-83. doi: 10.21608/ijicis.2022.110450.1144
Naglaa Fathy; Walaa Gad; Nagwa Badr; Mohamed Hashem. "ONTOLOGY-BASED DATA ACCESS TO HETEROGENEOUS DATA SOURCES: STATE OF THE ART APPROACHES AND APPLICATIONS". EKB Journal Management System, 22, 2, 2022, 74-83. doi: 10.21608/ijicis.2022.110450.1144
Fathy, N., Gad, W., Badr, N., Hashem, M. (2022). 'ONTOLOGY-BASED DATA ACCESS TO HETEROGENEOUS DATA SOURCES: STATE OF THE ART APPROACHES AND APPLICATIONS', EKB Journal Management System, 22(2), pp. 74-83. doi: 10.21608/ijicis.2022.110450.1144
Fathy, N., Gad, W., Badr, N., Hashem, M. ONTOLOGY-BASED DATA ACCESS TO HETEROGENEOUS DATA SOURCES: STATE OF THE ART APPROACHES AND APPLICATIONS. EKB Journal Management System, 2022; 22(2): 74-83. doi: 10.21608/ijicis.2022.110450.1144

ONTOLOGY-BASED DATA ACCESS TO HETEROGENEOUS DATA SOURCES: STATE OF THE ART APPROACHES AND APPLICATIONS

International Journal of Intelligent Computing and Information Sciences
Article 6, Volume 22, Issue 2, May 2022, Page 74-83  XML PDF (647.42 K)
Document Type: Original Article
DOI: 10.21608/ijicis.2022.110450.1144
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Authors
Naglaa Fathy email 1; Walaa Gadorcid 2; Nagwa Badrorcid 3; Mohamed Hashem4
1Faculty of Computer and Information Sciences, Ain Shams University. Cairo, Egypt
2Information Systems Department, Faculty of Computer and Information Sciences, Ain Shams University, Cairo, Egypt
3Department of Information Systems, Faculty of Computer and Information Sciences, Ain Shams University, Cairo, 11566, Egypt
4Department of Information Systems, Faculty of Computers and Information Sciences, Ain Shams University,Cairo , Egypt
Abstract
The evolution of heterogeneous data residing in various kinds of data sources (e.g., relational, XML, document stores, etc.) raises the need to provide a unified view over them. Ontology Based Data Access (OBDA) is a semantic web technology that comprises a set of algorithms and techniques for dealing with data heterogeneity. Ontologies are utilized in OBDA to provide a global view over various local datasets; and mappings are typically employed to define the relationships between them in two ways: data translation, query translation. In data translation, original data is transformed and materialized according to the global view. Whereas in query translation, queries written according to the global schema are transformed into the query language supported by the original data sources and evaluated in the original data management systems. In this paper, we present the framework of OBDA by discussing the main components of ontology-based data access, techniques, applications and future challenges.
Keywords
Data Integration; OBDA; Mapping Layer; Query translation
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