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<p>Hi Frank,</p>
<p><br>
</p>
<p>One way to check if an attribute is necessary is to see if it's
already defined with that certain value in the associated DTDs.</p>
<p>If you open the DITA concept for example in Oxygen in the Text
mode and place the caret inside the <concept...> tag, then
remove the attribute, look in the "Attributes" view, if that
specific attribute still appears there with the value grayed out,
this means that it's already defined with that value in the
associated DTDs and it's not necessary to define it in the XML
instance.</p>
<p><br>
</p>
<p>In your case with "xmlns:ditaarch" which is a prefix namespace
mapping declaration it is useless if:</p>
<p><br>
</p>
<p>1) It's already declared in the DTDs (which it is).</p>
<p>2) It's not used anywhere in the XML document (and it isn't,
there is no "ditaarch:abc='def'" attribute in the XML document).</p>
<p><br>
</p>
<p>So in your case the prefix namespace declaration is useless in
both cases.<br>
</p>
<p><br>
</p>
<p>Regards,</p>
<p>Radu</p>
<pre class="moz-signature" cols="72">Radu Coravu
Oxygen XML Editor</pre>
<p></p>
<p><br>
</p>
<div class="moz-cite-prefix">On 3/22/23 16:38, Frank Dissinger
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:28fc6573-cb3f-c380-61d2-122625f15634@cgs-oris.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<p>Hi all,</p>
<p><br>
</p>
<p>I am cleaning up DITA files created with FrameMaker. FrameMaker
has added a lot of unnecessary attributes, for example.</p>
<p><br>
</p>
<p>Among others, FM has added an <b>xmlns:ditaarch</b> attribute
to every top-level dita element such as concept, task or
reference. Example:<br>
</p>
<p><br>
</p>
<p><concept id="id187JBI00EHS" xml:lang="en-US" <b>xmlns:ditaarch=<a
class="moz-txt-link-rfc2396E"
href="http://dita.oasis-open.org/architecture/2005/"
moz-do-not-send="true">"http://dita.oasis-open.org/architecture/2005/"</a></b>><br>
</p>
<p><br>
</p>
<p> Can I safely remove this attribute or is it required?</p>
<p><br>
</p>
<p>Regards,</p>
<p>Frank<br>
</p>
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