An extended ETL concept, E-MPAC-TL is designed to meet the requirements while taking into account the realities of the systems, ____, constraints, and most importantly, the data itself.

A) Tools

B) Metadata

C) Technical Issues

D) All of the above

Correct Answer : All of the above

Explanation : An extended ETL concept, E-MPAC-TL is designed to meet the requirements while taking into account the realities of the systems, tools, metadata, technical issues, constraints, and most importantly, the data itself.