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Research Problems of the ETL Technology

Wojciechowski A., Wrembel R.

Foundations of Computing and Decision Sciences

2010

Vol. 35, No. 4

283-305

This paper overviews research developments in the field of the ETL technology with respect to the four following research fields: modeling of ETL processes, data cleaning, optimization of ETL processes, and evolution of ETL processes. In each of these research fields we outlined the most influential solutions and illustrated them with examples. This paper we also overviews a project that is currently being realized in the Institute of Computing Science at the Poznań University of Technology. The project focuses on developing a method and a framework for the support of the evolution of ETL process.