Previously, in a TSQL2sDay index summary post, I started a series on the DMV sys.dm_db_index_operational_stats. The series investigates how the columns in the DMV are populated and demonstrates how to aggregate values in the DMV.
The posts in this series are:
Scripts from the series – Index Black Ops.
PDF with all posts – Index Black Ops Whitepaper.
If you have any questions on the materials or think clarity is needed, please leave a comment. I plan to update this document from time to time as I learn more on how to this DMV operates.