2.1.662 Part 1 Section, dynamicFilter (Dynamic Filter)

a.   The standard does not place any limitations on the value of the val attribute.

Office requires that the val attribute be less than the maxVal attribute.

b.   The standard states in the description of the val attribute: "See description of maxVal to understand when val is required." However, the description of the maxVal attribute is not clear that both values are required at the same time.

Office requires that @val is required whenever @maxVal is required.

c.   The standard describes @maxVal as optional and correctly describes instances when it is required and what it means then, but does not state what happens when it is not required.

Office requires that when @maxVal is not required, it shall not be written out.