The ETL Process is the heart of the technical side of data warehousing. Conduct some independent research on the ETL Process.

Write a 1-2 page APA formatted paper with citations and references that analyzes why the ETL process is important for data warehousing efforts. Within your paper, discuss the three steps of the ETL process and briefly describe the use of four ETL tools (Batch, Cloud, Open-source, and Real-time). Please provide examples of ETL technologies.