This check verifies whether all views are shown in the required view scale. If not, the views are considered as incorrect.
This page discusses:
To modify a view with an incorrect scale, right-click it, and modify the Scale value in Properties > View tab
Checks only certain views. Enter a Regular Expression for the view paths to be checked. To check all views, leave this field empty.
Specifies the allowed view scales. Specify the scaling factor as a ratio of two integers separated by a colon, for example 1:20 or 4:3.