Are additional syntactic constraints only normative when the cannot be feasibly expressed in the schema language Who judges this The use of the word "whenever" is ambiguous. Is this a condition under which such statements are normative or an explanation of why such statements exist

The section 2.3: "What this standard specifies", line 14 specifies that if the schema language used in this standard cannot feasibly express all the syntactic constraints, then those constraints are provided in written form. Such expressions are normative. The application that implements this standard will judge if the additional syntactic constraints are normative or not. The editorial comment which explains why this statement is appropriate is useful to the reader and does not detract from the value of this statement.

Line 14 Part 1, Section 2.3

ed

Proposed Disposition of DIS 29500 Comment KE-0010 (Modified: 2008-01-04) Agreed; additional syntactic constraints are normative. We propose the following clarifying change to Part 1, §2.3: Additional syntax constraints in written form , wherever these constraints cannot feasibly be expressed 15 in the schema language . [Note: These constraints are described in written form because they could not feasibly be expressed in the schema language.] Similar Comments: DE-0121 , GB-0023 , PT-0017 , US-0254