The QC PI looks for the (tested) condition and simply Marks (a push pin) those books. YOU need to review and take action. This is a tool to HELP
identify metadata issues.
This is what some refer to as 'Normalization', making a standard way of recording data to make searches work well.
FIX section does a few REALLY COMMON adjustments (it uses the same
configuration setting as the test) eg make all Author Initials the same. Flip Ln, Fn to Fn Ln (or the other way)
It does NOT handle variations in Names (some with MI, others without), The same Publisher BUT listed differently eg Baen, Baen Books, Baen Publishing Enterprises Note: I prefer to use (cover) IMPRINT rather than the House when ever possible.
Word of caution: Auto-incorrect
Beware of auto fixing everything. LOOK AT the selections.
The SAME Series name may be used by multiple UNRELATED Authors. You may need to modify some to have a tie breaker eg Magic (AN) . Also beware of variants of the same over time
When I first started, I added (empty books) all (940) of my paper Library info by using the ISBN on the book. It took over 2 years of fix a few per day, to beat the metadata into shape.
OH! as you do, be sure to BACKUP before doing any MASS change, just in case AUTO does goes south.