According to section 3, the fact that ‘ignore’ is in italics means that it is defined in the surrounding text. However, the remainder of the sentence does not explain what ignore would mean. (The second part of the sentence adds a constraint on conformant consumers, it does not define the ignore term; if it were to be considered to define the ignore term, then the meaning of the ignore term would literaly be ‘do not raise errors upon’, which makes no sense.)

Define ignore properly, or rewrite the whole explanation. See also our general comments about the failed conceptualization in Part 5.

page 9, lines 26-27 Part 5, Section 8.1 Terminology

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Proposed Disposition of DIS 29500 Comment FR-0553 (Modified: 2008-01-04) Agreed; the comment applies to other instances in this clause as well. The following edits have been made: Part 5, §8.1, page 9, line 14 A characteristic of a markup consumer is that it can recognize recognize or process the elements and attributes within understood namespaces understood namespaces , including those containing elements and attributes defined in the markup specification Part 5, §8.1, page 9, lines 25­26 Within a markup document, a markup producer might use Markup Compatibility attributes to identify ignorable namespaces ignorable namespaces . Markup consumers shall ignore ignore elements and attributes from namespaces that are both non-understood and ignorable, and shall not treat their presence as errors.