Check Items are divided into Standard Criteria and Warning Criteria. Standard Criteria : All errors must be corrected to obtain a data quality assurance key. If errors remain, "Failed" is issued for the confirmed section.           Warning Criteria : To ensure data quality, these criteria require inspection (but not necessarily correction) of the shape. If no errors exist with respect to standard criteria and the only remaining errors are with respect to warning criteria, "Passed with Warning" is issued for the confirmed section.

	Standard Criteria	Description
1	Large Curve Gap	Detect gaps exceeding the threshold between endpoints shared by adjacent curves.
2	Non-Tangent Segments	Detect non-tangent edges that form angles exceeding the threshold between adjacent segments in edges.
3	Tiny Curve or Segment (Curve)	Detect curves and edges that are shorter than the threshold.
4	Tiny Curve or Segment (Segment)	Detect edge segments shorter than the threshold.
5	Self-Intersecting Curve	Detect instances where a curve intersects itself within the threshold.
6	Non-Tangent Patches	Detect non-tangent surfaces that form angles exceeding the threshold between adjacent patches in surfaces.
7	Tiny Surface or Patch (Surface)	Detect surfaces with area less than the threshold.
8	Narrow Surface or Patch (Surface)	Detect surfaces whose distance between an opposite pair of boundary curves is less than the threshold.
9	Narrow Surface or Patch (Patch)	Detect surface patches with sides of width less than the threshold in the transverse (narrower) direction.
10	Degenerate Surface Boundary (Surface)	Detect surfaces with a boundary curve of length less than the threshold (but not zero).
11	Self-Intersecting Surface	Detect instances where a curved surface intersects itself within the threshold.
12	Degenerate Surface Corner	Detect surfaces that form angles close to 0 or 180 deg (within the threshold) between 2 adjacent boundary curves.
13	Self-Intersecting Loop	Detect instances where edges in a loop intersect. Does not check acute angles formed by adjacent edges.
14	Inconsistent Edge In Loop	Detect inconsistency between the parametric direction of an edge in an edge loop and the loop direction.
15	Large Edge Face Gap	Detect gaps exceeding the threshold between trim edges on a trim surface and the underlying surface.
16	Tiny Face	Detect faces with area less than the threshold.
17	Narrow Face	Detect faces with a maximum width of less than the threshold in the transverse (narrower) direction.
18	Large Vertex Gap	Detect gaps exceeding the threshold between vertices on a face and the underlying surface.
19	Intersecting Loops	Detect instances where 2 loops in a face are interfering within the threshold.
20	Large Face Gap	Detect gaps exceeding the threshold along seams shared by adjacent faces.
21	Over-Used Edge	Detect individual edges shared by three or more faces.
22	Sharp Face Angle	Detect instances where 2 adjacent faces form an angle at a common edge less than the threshold.
23	Tiny Solid	Detect solids with volume less than the threshold.
24	Solid Void	Detect solids with one or more inner shells.

	Warning Criteria	Description
25	Embedded Faces	Detect overlapping of two faces where one face partially overlaps the other (by less than the threshold) or is completely embedded. When n faces overlap, then nC2=n!/(n-2)!2! problems are detected.
26	Free Edge	Detect individual edges used by only 1 face.