Tim Mitchell
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Data Architecture

Real Time

Do You Really Need Real-Time?

It wasn’t so long ago that the first day of the month was the most common trigger event for updating key metrics. Indicators such as profit, efficiency, bonuses owed, and other markers would be published monthly¬†after that month’s data was tabulated (which may be days or even weeks into the new month). In some organizations, the work required to calculate…


What is a Day?

What Is A Day?

When designing a data warehouse or reporting architecture, the smallest questions can pose some of the biggest challenges. Identifying what may appear to be an obvious term or metric can slow down or even derail a business intelligence initiative. Early in my career as a BI professional, I was faced with just such a scenario when trying to address a…


Metadata Hygiene

Metadata Hygiene

Those who follow my blog know that I write a lot about data quality. Measuring and improving the quality of data is an important part of any data initiative, especially in the data warehousing space. While data quality does get its share of attention, there is a concept that is equally important but is sadly overlooked during most data projects:…