<span class="gmail_quote">On 5/4/07, <b class="gmail_sendername">Martin McEvoy</b> <<a href="mailto:martin@weborganics.co.uk">martin@weborganics.co.uk</a>> wrote:</span><br><div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<ol class="haudio"><br> <li class="work-title"><a class="acquire"<br>href="<a href="http://link.to/download-1">http://link.to/download-1</a>">download page 1</a></li>
<br> <li class="work-title"><a class="acquire"<br>href="<a href="http://link.to/download-2">http://link.to/download-2</a>">download page 2</a></li><br>
<li class="work-title"><a class="acquire"<br>href="<a href="http://link.to/download-3">http://link.to/download-3</a>">download page 3</a></li>
<br> </ol><br><br><ol> is my shelf<br><li> Are my books on a shelf.<br><br>another one<br><br><div class="haudio"><br> <p class="work-title"><a class="acquire"
<br>href="<a href="http://link.to/download-1">http://link.to/download-1</a>">download page 1</a></p><br> <p class="work-title"><a class="acquire"<br>href="
<a href="http://link.to/download-2">http://link.to/download-2</a>">download page 2</a></p><br> <p class="work-title"><a class="acquire"<br>href="
<a href="http://link.to/download-3">http://link.to/download-3</a>">download page 3</a></p><br> </div><br><br><div> is my shelf<br><p> Are my books on a shelf.<br></blockquote>
</div><br>It seems like some people are still missing/ignoring a few key points with regards to the problem(s) which some kind of a grouping or collection pattern are intended to address:<br><br>1) There exists a need to express a grouping relationship for data which is sparse. Please see the
<a href="http://microformats.org/wiki/grouping-examples">grouping-examples</a> and <a href="http://microformats.org/wiki/grouping-brainstorming">grouping-brainstorming</a> wiki pages for descriptions of these types of data sets.
<br><br>2) There exists a need to express an N-N grouping relationship, as opposed to simply 1-N which is all a heirarchical structure implicitly allows.<br><br>Although a highly elegant solution, letting existing heirarchical markup alone define the containing and contained elements of a collection unfortunately does not address these two base problems, and I believe at this point there's a general consensus on these two problems being part of the problem space we're trying to solve with the grouping 'pattern', although additional real-world examples are still being compiled and analyzed to support this fact.
<br><br>--<br>Rudy X. Desjardins<br>Programmer<br>