welcomes Simon Terr as the newest online contributor. His "Real-Time Data Warehousing" column will appear on the second Friday of each month. He will delve into the complex issues surrounding real time and data warehousing.

I recently assisted in the hiring process of an ETL developer for a client's data warehousing group. Each of the people I've interviewed had strong knowledge in one area or another of data warehousing but none had a strong overall grasp. Therefore, this introductory column will paint the bigger picture so readers will have an overall grasp of data warehousing and, in particular, real-time data warehousing. In future columns, I will address several fundamental topics that include data warehousing basics, definition of real time data warehousing, real time versus near real time, real time in online transaction processing (OLTP), the case for real time and real-time data warehousing building blocks.

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