This check verifies whether the number of segments in a surface exceeds the value specified. If so, the elements are considered as incorrect.
This page discusses:
When a surface includes a high number of segments, then the size of the surface increases and the surface is considered as complex and fragmented.
A surface can be considered as fragmented in the following situations:
If the option is selected, checks the number of segment rows and specifies the maximum number of patches allowed per surface.
Specifies the maximum number of arcs allowed in the U and V direction. Above this value, the surface is considered as fragmented, and so as incorrect.
If the value is set to zero, the parameter is ignored.