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<br /><table class="width100" cellspacing="1"><tr><td class="form-title" colspan="6"><div class="center">ETSI's Bug Tracker - Part 01: TTCN-3 Core Language</div></td></tr><tr><td class="form-title" colspan="6">View Issue Details</td></tr><tr><td class="print-spacer" colspan="6"><hr size="1" /></td></tr><tr class="print-category"><td class="print" width="16%">ID</td><td class="print" width="16%">Project</td><td class="print" width="16%">Category</td><td class="print" width="16%">View Status</td><td class="print" width="16%">Date Submitted</td><td class="print" width="16%">Last Update</td></tr><tr class="print"><td class="print">0006233</td><td class="print">Part 01: TTCN-3 Core Language</td><td class="print">Technical</td><td class="print">public</td><td class="print">24-07-2012 17:33</td><td class="print">21-12-2012 12:00</td></tr><tr><td class="print-spacer" colspan="6"><hr size="1" /></td></tr><tr class="print"><td class="print-category">Reporter</td><td class="print">Gyorgy Rethy</td><td class="print" colspan="4">&#160;</td></tr><tr class="print"><td class="print-category">Assigned To</td><td class="print">Ina Schieferdecker</td><td class="print" colspan="4">&#160;</td></tr><tr class="print"><td class="print-category">Priority</td><td class="print">normal</td><td class="print-category">Severity</td><td class="print">minor</td><td class="print-category">Reproducibility</td><td class="print">have not tried</td></tr><tr class="print"><td class="print-category">Status</td><td class="print">closed</td><td class="print-category">Resolution</td><td class="print">fixed</td><td class="print" colspan="2">&#160;</td></tr><tr class="print"><td class="print-category">Platform</td><td class="print"></td><td class="print-category">OS</td><td class="print"></td><td class="print-category">OS Version</td><td class="print"></td></tr><tr class="print"><td class="print-category">Product Version</td><td class="print"></td><td class="print" colspan="4">&#160;</td></tr><tr><td class="print-category">Target Version</td><td class="print">v4.5.1 (published 2013-04)</td><td class="print-category">Fixed in Version</td><td class="print">v4.5.1 (published 2013-04)</td><td class="print" colspan="2">&#160;</td></tr><tr class="print"><td class="print-category">Clause Reference(s)</td><td class="print" colspan="4">27.1.2.1</td></tr><tr class="print"><td class="print-category">Source  (company  - Author)</td><td class="print" colspan="4">L.M.Ericsson</td></tr><tr><td class="print-spacer" colspan="6"><hr size="1" /></td></tr><tr class="print"><td class="print-category">Summary</td><td class="print" colspan="5">0006233: Variant overwriting rules are not correct</td></tr><tr class="print"><td class="print-category">Description</td><td class="print" colspan="5">Clause 27.1.2.1 paragraph one specifies that <br />
â€¢	a variant attribute overwrites an current variant attribute according to the rules defined in clause 27.1.2;<br />
<br />
However this rule, if applied, would cause problems for XSD to TTCN-3 mapping, where the encoding instructions applied to a type (e.g. XSD:decimal&quot;) and to a field this type (e.g. &quot;name as...&quot;) shall apply at the same time. But, of course, several enoding instructions may apply to a given field as well.  </td></tr><tr class="print"><td class="print-category">Steps To Reproduce</td><td class="print" colspan="5"></td></tr><tr class="print"><td class="print-category">Additional Information</td><td class="print" colspan="5"></td></tr><tr class="print"><td class="print-category">Tags</td><td class="print" colspan="5">No tags attached.</td></tr><tr class="print"><td class="print-category">Relationships</td><td class="print" colspan="5"><table border="0" width="100%" cellpadding="0" cellspacing="1"><tr><td class="print"><span class="nowrap">parent of</span>&#160;</td><td class="print">0006389</td><td class="print">closed&#160;</td><td class="print"><span class="nowrap"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=127">Gyorgy Rethy</a></span>&#160;</td><td class="print">Part 09: Using XML with TTCN-3&#160;</td><td class="print">Variant overwriting rules are not correct&#160;</td></tr></table></td></tr><tr class="print"><td class="print-category">Attached Files</td><td class="print" colspan="5"><img src="http://oldforge.etsi.org/mantis/images/fileicons/html.gif" alt="htm" />&#160;TTCN-3 language question from ETSI STF446.htm (16,074) <span class="italic">11-12-2012 14:05</span><br />http://oldforge.etsi.org/mantis/file_download.php?file_id=2765&amp;type=bug<br /><img src="http://oldforge.etsi.org/mantis/images/fileicons/doc.gif" alt="doc" />&#160;CR6233_resolution_P1_v1.doc (133,120) <span class="italic">21-12-2012 10:53</span><br />http://oldforge.etsi.org/mantis/file_download.php?file_id=2794&amp;type=bug<br /><img src="http://oldforge.etsi.org/mantis/images/fileicons/doc.gif" alt="doc" />&#160;CR6233_resolution_P1_v2.doc (111,616) <span class="italic">21-12-2012 11:59</span><br />http://oldforge.etsi.org/mantis/file_download.php?file_id=2797&amp;type=bug</td></tr><tr><td class="print-spacer" colspan="6"><hr size="1" /></td></tr><tr><td class="form-title">Issue History</td></tr><tr class="print-category"><td class="row-category-history">Date Modified</td><td class="row-category-history">Username</td><td class="row-category-history">Field</td><td class="row-category-history">Change</td></tr><tr class="print"><td class="print">24-07-2012 17:33</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=127">Gyorgy Rethy</a></td><td class="print">New Issue</td><td class="print"></td></tr><tr class="print"><td class="print">24-07-2012 17:33</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=127">Gyorgy Rethy</a></td><td class="print">Clause Reference(s)</td><td class="print"> =&gt; 27.1.2.1</td></tr><tr class="print"><td class="print">24-07-2012 17:33</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=127">Gyorgy Rethy</a></td><td class="print">Source  (company  - Author)</td><td class="print"> =&gt; L.M.Ericsson</td></tr><tr class="print"><td class="print">08-08-2012 09:32</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=127">Gyorgy Rethy</a></td><td class="print">Note Added: 0010991</td><td class="print"></td></tr><tr class="print"><td class="print">08-08-2012 09:32</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=127">Gyorgy Rethy</a></td><td class="print">Status</td><td class="print">new =&gt; assigned</td></tr><tr class="print"><td class="print">08-08-2012 09:32</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=127">Gyorgy Rethy</a></td><td class="print">Assigned To</td><td class="print"> =&gt; Gyorgy Rethy</td></tr><tr class="print"><td class="print">10-12-2012 16:57</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=127">Gyorgy Rethy</a></td><td class="print">Target Version</td><td class="print"> =&gt; Edition 4.5.1</td></tr><tr class="print"><td class="print">11-12-2012 13:59</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=127">Gyorgy Rethy</a></td><td class="print">Note Added: 0011224</td><td class="print"></td></tr><tr class="print"><td class="print">11-12-2012 14:05</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=127">Gyorgy Rethy</a></td><td class="print">File Added: TTCN-3 language question from ETSI STF446.htm</td><td class="print"></td></tr><tr class="print"><td class="print">13-12-2012 14:54</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=127">Gyorgy Rethy</a></td><td class="print">Note Added: 0011255</td><td class="print"></td></tr><tr class="print"><td class="print">14-12-2012 12:51</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=508">Jacob Wieland - Spirent</a></td><td class="print">Note Added: 0011278</td><td class="print"></td></tr><tr class="print"><td class="print">21-12-2012 10:53</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=127">Gyorgy Rethy</a></td><td class="print">File Added: CR6233_resolution_P1_v1.doc</td><td class="print"></td></tr><tr class="print"><td class="print">21-12-2012 10:53</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=127">Gyorgy Rethy</a></td><td class="print">Note Added: 0011307</td><td class="print"></td></tr><tr class="print"><td class="print">21-12-2012 10:54</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=127">Gyorgy Rethy</a></td><td class="print">Assigned To</td><td class="print">Gyorgy Rethy =&gt; Ina Schieferdecker</td></tr><tr class="print"><td class="print">21-12-2012 10:55</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=127">Gyorgy Rethy</a></td><td class="print">Issue cloned: 0006389</td><td class="print"></td></tr><tr class="print"><td class="print">21-12-2012 10:55</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=127">Gyorgy Rethy</a></td><td class="print">Relationship added</td><td class="print">parent of 0006389</td></tr><tr class="print"><td class="print">21-12-2012 11:59</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=81">Ina Schieferdecker</a></td><td class="print">Note Added: 0011310</td><td class="print"></td></tr><tr class="print"><td class="print">21-12-2012 11:59</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=81">Ina Schieferdecker</a></td><td class="print">File Added: CR6233_resolution_P1_v2.doc</td><td class="print"></td></tr><tr class="print"><td class="print">21-12-2012 12:00</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=81">Ina Schieferdecker</a></td><td class="print">Status</td><td class="print">assigned =&gt; resolved</td></tr><tr class="print"><td class="print">21-12-2012 12:00</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=81">Ina Schieferdecker</a></td><td class="print">Resolution</td><td class="print">open =&gt; fixed</td></tr><tr class="print"><td class="print">21-12-2012 12:00</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=81">Ina Schieferdecker</a></td><td class="print">Fixed in Version</td><td class="print"> =&gt; Edition 4.5.1</td></tr><tr class="print"><td class="print">21-12-2012 12:00</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=81">Ina Schieferdecker</a></td><td class="print">Status</td><td class="print">resolved =&gt; closed</td></tr></table>
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				(0010991)
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				<a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=127">Gyorgy Rethy</a>&#160;&#160;&#160;
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				08-08-2012 09:32&#160;&#160;&#160;
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				STF discussion 2012-08-08: ask tool vendors if changing the variant overriding rule in part one to &quot;append&quot; by default would be a problem for them.			</td>
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				(0011224)
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				<a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=127">Gyorgy Rethy</a>&#160;&#160;&#160;
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				11-12-2012 13:59&#160;&#160;&#160;
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				E-mail has been sent to TTCN-3 tool vendors on 10-Aug and re-sent on 11-Dec. No response received.			</td>
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				(0011255)
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				<a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=127">Gyorgy Rethy</a>&#160;&#160;&#160;
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				13-12-2012 14:54&#160;&#160;&#160;
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				STF discussion 2012-12-13:<br />
- the variant overwriting rules defined in Part-1 are the default rules; add a sentence to Part-1 that different language mappings may define their own variant attribute rules.<br />
- define the variant rules for the XSD mapping in Part-9			</td>
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				(0011278)
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				<a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=508">Jacob Wieland - Spirent</a>&#160;&#160;&#160;
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				14-12-2012 12:51&#160;&#160;&#160;
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				I'm confused, I sent a response to both mails, both times with the same answer,<br />
which was in essence this:<br />
<br />
I think that all provided options are totally unnecessary and this problem can easily be solved by amending the XSD to TTCN-3 mapping. This mapping needs to be changed in such a way that the generated variant attributes for an inner element include all inherited variant attributes that shall not be overwritten.<br />
<br />
Since the mapping process is done automatically by some generator which needs to keep track of this information anyway, this should not be a problem. It will also make implementation of generic XSD-codecs simpler as they don't have to follow some additional rules for the append-cases.<br />
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Introducing new rules for different language mappings is considered harmful by Testing Technologies as then every language mapping potentially could have a totally different approach to variant attribute overwriting and it is unclear how this can remain compositional, e.g. when types from one language are imported into TTCN-3 and amended with variant attributes. Shall the importers rules be followed or the imported rules? This can at least lead to a lot of confusion by the users and thus to lots of errors and frustration and lesser acceptance of TTCN-3.			</td>
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				(0011307)
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				<a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=127">Gyorgy Rethy</a>&#160;&#160;&#160;
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				21-12-2012 10:53&#160;&#160;&#160;
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				See my proposal for part-1 in CR6233_resolution_P1_v1.doc.			</td>
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				(0011310)
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				<a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=81">Ina Schieferdecker</a>&#160;&#160;&#160;
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				21-12-2012 11:59&#160;&#160;&#160;
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				Implemented with small editorial given in v2			</td>
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