Hi Rodolfo, > I think we need to modify current specs and clarify the three different "ref" attributes. Yes, I agree. > 1) if the <source> in <mtc:match> matches the whole <source> of a <segment>, "ref" should point to the "id" of that <segment> I think we should be careful about this. As far as I know, examples found online and the book "A Practical Guide to XLIFF 2.0" (you're co-author!) use <mrk> to annotate entire source segment, and <mtc:match> refers to the <mrk> annotation. I could not find any examples pointing to segment element except broken example (missing #) in XLIFF 2.x spec. So, I suspect someone who uses the translation candidate module assume <mrk> annotation must be used. I can imagine some implementators may prefer to use <mrk> annotation for this purpose. I think we probably just state that pointing to segment is equivalent to pointing <mrk> element enclosing entire <source> element value in the segment, and avoid "should point to the "id" of that <segment>". > 2) If the <source> in <mtc:match> matches a fragment in the <source> of a <segment>, "ref" should point to the "id" of the <mrk> or <pc> element that encloses the matched text. I personally don't like to allow <pc> here. I feel it's just not practical, and introducing extra complexity. If we allow <pc>, we may also allow any kind of <mrk>, not limited to type="mtc:match". > I'm ignoring the case where the <source> of <mtc:macth> points to the whole content or a fragment of <target> in <segment>. I don't think this should be allowed but there may be some use cases. Right. I don't think many people including me to <mtc:match> pointing to a fragment of target segment. But I can imagine legitimate use case - For example, if a tentative translation is provided, and the translation is already used for different source text in the past, then translator may change translation to distinguish one from another. In general, I agree that this use case is practically ignorable. -Yoshito