DBLab School of Computer and Electrical Engineering KDBSL NTUA
Monday, August 03, 2020
Τίτλος Ontology-based Conceptual Design of ETL Processes for both Structured and Semi-structured Data
Έγγραφο Προβολή εγγράφου
Συγγραφέας Δημήτρης Σκούτας

One of the most important tasks performed in the early stages of a
data warehouse project is the analysis of the structure and content
of the existing data sources and their intentional mapping to a
common data model. Establishing the appropriate mappings between
the attributes of the data sources and the attributes of the
data warehouse tables is critical in specifying the required transformations
in an ETL workflow. The selected data model should
be suitable for facilitating the redefinition and revision efforts,
typically occurring during the early phases of a data warehouse
project, and serve as the means of communication between the
involved parties. In this paper, we argue that ontologies constitute
a very suitable model for this purpose and show how the usage of
ontologies can enable a high degree of automation regarding the
construction of an ETL design.

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