Dylan's BI Study Notes

My notes about Business Intelligence, Data Warehousing, OLAP, and Master Data Management

Why do people not report by Month in the Gregorian calendar?

Posted by Dylan Wan on February 26, 2008

  1. The number of days is different in each calendar month.
  2. The week and month cannot be aligned.  The number of weekends is different in each calendar month.
  3. The number of working days is different in each calendar month.  It ends up that the number of days in each quarter is also different.
  4. The period closing day will fall into different days in each period.  The accounting department prefers always close the period by a given day in a week, such as Wednesday or Friday.
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