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<p class="MsoNormal"><span style="color:#1F497D">Relationship class is in DDI 4.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">The related documentation says “Relationship specification between this item and the item to which it is related.”
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Using this approach for binding would conflict with the idea of reusability because the reference to a another object would be part of the object itself.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">The concept of binding is in 3.2 a little different. Two identifiable parameters are referenced by the binding definition. But the binding is a child element of the element having a parameter. This seems to be
limiting regarding reusability.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Back to the usage in DDI 3.2:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Any thoughts on the question regarding the binding definition only in the Sequence (the OutParameter of Question 1 and the InParameter of Question 2).
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">This is a DDI 3.2 question.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Achim<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> ddi-users-bounces@icpsr.umich.edu [mailto:ddi-users-bounces@icpsr.umich.edu]
<b>On Behalf Of </b>Hoyle, Larry<br>
<b>Sent:</b> Freitag, 11. Dezember 2015 20:48<br>
<b>To:</b> Data Documentation Initiative Users Group<br>
<b>Subject:</b> Re: [DDI-users] InParameter/OutParameter and Binding in Questionnaires<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="color:#1F497D">Would this be an application of the Relationship classes?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="color:#1F497D">--- Larry Hoyle<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b>From:</b> <a href="mailto:ddi-users-bounces@icpsr.umich.edu">
ddi-users-bounces@icpsr.umich.edu</a> [<a href="mailto:ddi-users-bounces@icpsr.umich.edu">mailto:ddi-users-bounces@icpsr.umich.edu</a>]
<b>On Behalf Of </b>Wackerow, Joachim<br>
<b>Sent:</b> Friday, December 11, 2015 12:32 PM<br>
<b>To:</b> Data Documentation Initiative Users Group (<a href="mailto:ddi-users@icpsr.umich.edu">ddi-users@icpsr.umich.edu</a>) <<a href="mailto:ddi-users@icpsr.umich.edu">ddi-users@icpsr.umich.edu</a>><br>
<b>Subject:</b> [DDI-users] InParameter/OutParameter and Binding in Questionnaires<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I’m wondering where the binding can be specified and which way is best to support reusability of QuestionItems.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">This topic is documented in the Technical Documentation of DDI 3.2. There is a related diagram on page 35 (and a related example XML file InOutBindingExample). This explains that binding is done in a chain from Question 1 up to the Sequence
and then down again to Question 2. This shows all possibilities of defining bindings in this case.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">A simpler way would be to define the binding of directly in the Sequence (the OutParameter of Question 1 and the InParameter of Question 2). Then all other bindings are not necessary and the questions are totally reusable. This would also
correspond to the actual use of these two questions in the sequence. Only then the binding is important.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Are there any disadvantages to use this option?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">A more general thought: a definition of a binding is probably mostly of local use (here for questions in a sequence). Therefore it can conflict with the idea of reusability. In this sense, a better location for binding definitions would
be an independent scheme. On the other hand, if the sequence should be reused like it is it makes sense to have the binding definition in the sequence.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Achim<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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