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    <p>On a second thought, perhaps it is just better to just get rid of
      InformationObject entirely given that making every single class
      susceptible of being input/output to a Process an extension of
      InformationObject is going to be very messy. We could use a simple
      soft-link mechanism, e.g. the facade, to get a similar, less messy
      result.<br>
    </p>
    <p>Flavio</p>
    <p><br>
    </p>
    <div class="moz-cite-prefix">On 2021-08-06 3:48 p.m., Flavio Rizzolo
      wrote:<br>
    </div>
    <blockquote type="cite"
      cite="mid:dad42b9a-09d1-066e-ecb1-ec98c2fa6225@gmail.com">
      <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
      <p>This user/implementation guide is becoming more critical the
        more we review the model. How, and when, to use identifiable is
        the latest addition to the guide, I'd say. <br>
      </p>
      <p>As part of the Process model review, I have a couple of
        proposals related to InformationObject:</p>
      <p>- Current definition: "An InformationObject may be a data
        object or a metadata object either used or produced by an
        Activity. A program that creates InformationObjects is also an
        InformationObject."</p>
      <p>- Proposed definition: "Data or Conceptual object playing the
        role of input or output of an Activity." I don't think we want
        to have programs as input/outputs at this point, that would be
        too "meta" and create some confusion. <br>
      </p>
      <p>- Currently, InformationObject is only the parent class of
        different types of Datasets, VariableCollection and
        EnumerationDomain. No individual values, variables or even
        concepts of any kind. By restricting InformationObjecs to those
        classes, the usability of the model in practical scenarios is
        vastly reduced. I suggest to either make every class in
        Conceptual and DataDescription a subtype of InformationEntity,
        or at the very least add to the existing ones Concept and Datum.
        <br>
      </p>
      <p>- Finally, rename it to "Entity", or "InformationEntity", or
        something similar, more inline with PROV and others. I don't
        like the use of "object" when actually referring to a class in
        GSIM, and I think we could just avoid using it here.</p>
      <p>Flavio</p>
      <br>
      <div class="moz-cite-prefix">On 2021-08-06 2:39 p.m., A. G. wrote:<br>
      </div>
      <blockquote type="cite"
        cite="mid:1181929075.399152.1628275156557@mail.yahoo.com">
        <meta http-equiv="content-type" content="text/html;
          charset=UTF-8">
        <div class="ydpa393233fyahoo-style-wrap"
          style="font-family:Helvetica Neue, Helvetica, Arial,
          sans-serif;font-size:13px;">
          <div dir="ltr" data-setdir="false">Flavio:</div>
          <div dir="ltr" data-setdir="false"><br>
          </div>
          <div dir="ltr" data-setdir="false">It has become clear to me
            as I have looked at a couple of examples that what you say
            is true.</div>
          <div dir="ltr" data-setdir="false"><br>
          </div>
          <div dir="ltr" data-setdir="false">One major topic for the
            Dagstuhl week will be to design and document a methodology
            for creating implementation guides. These would describe
            both the selection of classes to be used from the model, and
            relevant choices about syntac representation.</div>
          <div dir="ltr" data-setdir="false"><br>
          </div>
          <div dir="ltr" data-setdir="false">Without this - functioning
            basically as a checklist for a community implementing the
            model, but one which can be shared with others to support
            interoperability - I do not see a model of this complexity
            being practically useful.</div>
          <div dir="ltr" data-setdir="false"><br>
          </div>
          <div dir="ltr" data-setdir="false">One aspect of this which
            has become evident is that with a minimum received metadata
            payload, it is possible to use the model to derive much
            greater richness within the system processing that metadata,
            especially if the implementation details are known.</div>
          <div dir="ltr" data-setdir="false"><br>
          </div>
          <div dir="ltr" data-setdir="false">The best example of this I
            have seen so far is an RDF implementation prototype where
            users are expected to describe their instance variables, and
            to indicate whether the concept employed and/or the
            enumerated values are taken from an authoritative source.
            With this information it is possible to populate the entire
            variable cascade in a useful way, suitable for a system
            designed to identify reuse programmatically.</div>
          <div dir="ltr" data-setdir="false"><br>
          </div>
          <div dir="ltr" data-setdir="false">I think this kind of hidden
            complexity is actually very powerful. Although we need
            responsible users it will help a lot if we can tell them
            what we mean by "responsible". That burden should be as
            light as possible for our adopters.</div>
          <div dir="ltr" data-setdir="false"><br>
          </div>
          <div dir="ltr" data-setdir="false">Cheers,</div>
          <div dir="ltr" data-setdir="false"><br>
          </div>
          <div dir="ltr" data-setdir="false">Arofan</div>
          <div><br>
          </div>
        </div>
        <div id="yahoo_quoted_8527513636" class="yahoo_quoted">
          <div style="font-family:'Helvetica Neue', Helvetica, Arial,
            sans-serif;font-size:13px;color:#26282a;">
            <div> On Friday, August 6, 2021, 06:09:04 PM GMT+2, Flavio
              Rizzolo <a class="moz-txt-link-rfc2396E"
                href="mailto:flavio.rizzolo@gmail.com"
                moz-do-not-send="true">&lt;flavio.rizzolo@gmail.com&gt;</a>
              wrote: </div>
            <div><br>
            </div>
            <div><br>
            </div>
            <div>
              <div id="yiv0598211313">
                <div>
                  <p>That would depend on the syntax representation, in
                    XML or JSON you can use the nesting of elements
                    without needing further references... In any case, I
                    lost track of how many times we went back and forth
                    on this, I made the suggestion because I thought we
                    were not identifying everything in this iteration...
                    my bad.<br clear="none">
                  </p>
                  <p>The identifier is optional anyways, we could
                    emphasize in the documentation that if the syntax
                    representation of your choice doesn't need it in
                    certain cases, then don't use it. That would create
                    other interoperability problems since some people
                    might drop identifiers even when they are really
                    required, but I don't see any way around that since
                    we are given tons of flexibility to the users, and
                    with great flexibility comes great responsibility...
                    <br clear="none">
                  </p>
                  <p>Flavio</p>
                  <br clear="none">
                  <div class="yiv0598211313yqt5352420460"
                    id="yiv0598211313yqt91024">
                    <div class="yiv0598211313moz-cite-prefix">On
                      2021-08-06 10:57 a.m., Hoyle, Larry wrote:<br
                        clear="none">
                    </div>
                    <blockquote type="cite"> </blockquote>
                  </div>
                </div>
                <div class="yiv0598211313yqt5352420460"
                  id="yiv0598211313yqt66826">
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                      <p class="yiv0598211313MsoNormal">Unfortunately,
                        anything that is at the navigable end of an
                        association needs an identifier. This does not
                        mean that these need to be heavily (centrally)
                        managed – a random UUID could work for the
                        ddiIdentifier attribute of the Identifier. The
                        Position class is an example. A list needs to be
                        able to refer to the positions of the objects in
                        the list. If these Positions do not have unique
                        identifiers, a saved instance of the list and
                        its associated positions becomes unusable.</p>
                      <p class="yiv0598211313MsoNormal">  </p>
                      <p class="yiv0598211313MsoNormal">Since we cannot
                        foresee future uses of existing classes in the
                        model, all classes should have an identifier
                        property. This is how we have been doing this
                        for quite a while now. This is one of the
                        primary distinctions between classes and
                        structured datatypes.</p>
                      <p class="yiv0598211313MsoNormal">Please let’s not
                        get into remodeling this at this late date.</p>
                      <p class="yiv0598211313MsoNormal">  </p>
                      <p class="yiv0598211313MsoNormal">Larry</p>
                      <p class="yiv0598211313MsoNormal">  </p>
                      <p class="yiv0598211313MsoNormal">  </p>
                      <div>
                        <div style="border:none;border-top:solid #E1E1E1
                          1.0pt;padding:3.0pt 0in 0in 0in;">
                          <p class="yiv0598211313MsoNormal"><b>From:</b>
                            <a rel="nofollow noopener noreferrer"
                              shape="rect"
                              class="yiv0598211313moz-txt-link-abbreviated"
ymailto="mailto:ddi-srg-bounces@icpsr.umich.edu" target="_blank"
                              href="mailto:ddi-srg-bounces@icpsr.umich.edu"
                              moz-do-not-send="true">ddi-srg-bounces@icpsr.umich.edu</a>
                            <a rel="nofollow noopener noreferrer"
                              shape="rect"
                              class="yiv0598211313moz-txt-link-rfc2396E"
ymailto="mailto:ddi-srg-bounces@icpsr.umich.edu" target="_blank"
                              href="mailto:ddi-srg-bounces@icpsr.umich.edu"
                              moz-do-not-send="true">&lt;ddi-srg-bounces@icpsr.umich.edu&gt;</a>
                            <b>On Behalf Of </b>Flavio Rizzolo<br
                              clear="none">
                            <b>Sent:</b> Friday, August 6, 2021 8:40 AM<br
                              clear="none">
                            <b>To:</b> <a rel="nofollow noopener
                              noreferrer" shape="rect"
                              class="yiv0598211313moz-txt-link-abbreviated"
                              ymailto="mailto:ddi-srg@icpsr.umich.edu"
                              target="_blank"
                              href="mailto:ddi-srg@icpsr.umich.edu"
                              moz-do-not-send="true">ddi-srg@icpsr.umich.edu</a><br
                              clear="none">
                            <b>Subject:</b> Re: [DDI-SRG] [CDI] new
                            Canonical XMI after model transform</p>
                        </div>
                      </div>
                      <p class="yiv0598211313MsoNormal">  </p>
                      <p>Yes, that's a good point Larry. The question is
                        whether that is the case, or it's just safer to
                        remove them from all abstract classes with the
                        idea we'll add them in the concrete classes as
                        necessary.</p>
                      <p>The pattern classes also have identifier, even
                        in the cases in which the concrete classes
                        shouldn't have them, e.g. keys and keymembers. I
                        think the criteria for having identifiers is not
                        only that they will be instantiated but also
                        that the instance can live on its own and is
                        worth referencing, which is not the case of
                        something like keys and keymembers (besides, it
                        would really be an overkill to add identifier,
                        which is not light, to something like a
                        keymember, which is essentially a pointer
                        linking data points). </p>
                      <p>The idea at some point was to use composition
                        to indicate when two classes formed a single
                        whole so that the parts didn't require separate
                        identification from the whole. They keys
                        certainly satisfy that, since the are parts of a
                        dataset. Position in List is another example. </p>
                      <p>Flavio</p>
                      <p>  </p>
                      <div>
                        <p class="yiv0598211313MsoNormal">On 2021-08-06
                          7:56 a.m., Hoyle, Larry wrote:</p>
                      </div>
                      <blockquote
                        style="margin-top:5.0pt;margin-bottom:5.0pt;">
                        <p class="yiv0598211313MsoNormal">As to the last
                          point:</p>
                        <p class="yiv0598211313MsoNormal">I would think
                          that adding an identifier to an abstract class
                          is done not because I would think that adding
                          an identifier to an abstract class is done not
                          because you expect to identify the abstract
                          class itself, but because you intend that all
                          classes inheriting from it are identifiable. A
                          Flavio pointed out, by being abstract, a class
                          is never intended to be used directly. It only
                          exists to describe what properties and
                          relationships its descendants must have. </p>
                        <p class="yiv0598211313MsoNormal"> </p>
                        <p class="yiv0598211313MsoNormal">I would not
                          remove the identifier from an abstract classes
                          without thinking about whether all descendants
                          are intended to be identifiable.</p>
                        <p class="yiv0598211313MsoNormal"> </p>
                        <div>
                          <div style="border:none;border-top:solid
                            #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in;">
                            <p class="yiv0598211313MsoNormal"><b>From:</b>
                              <a rel="nofollow noopener noreferrer"
                                shape="rect"
                                ymailto="mailto:ddi-srg-bounces@icpsr.umich.edu"
                                target="_blank"
                                href="mailto:ddi-srg-bounces@icpsr.umich.edu"
                                moz-do-not-send="true">
                                ddi-srg-bounces@icpsr.umich.edu</a> <a
                                rel="nofollow noopener noreferrer"
                                shape="rect"
                                ymailto="mailto:ddi-srg-bounces@icpsr.umich.edu"
                                target="_blank"
                                href="mailto:ddi-srg-bounces@icpsr.umich.edu"
                                moz-do-not-send="true">
                                &lt;ddi-srg-bounces@icpsr.umich.edu&gt;</a>
                              <b>On Behalf Of </b>Wackerow, Joachim<br
                                clear="none">
                              <b>Sent:</b> Friday, August 6, 2021 6:42
                              AM<br clear="none">
                              <b>To:</b> DDI Structural Reform Working
                              Group. <a rel="nofollow noopener
                                noreferrer" shape="rect"
                                ymailto="mailto:ddi-srg@icpsr.umich.edu"
                                target="_blank"
                                href="mailto:ddi-srg@icpsr.umich.edu"
                                moz-do-not-send="true">
                                &lt;ddi-srg@icpsr.umich.edu&gt;</a><br
                                clear="none">
                              <b>Subject:</b> Re: [DDI-SRG] [CDI] new
                              Canonical XMI after model transform</p>
                          </div>
                        </div>
                        <p class="yiv0598211313MsoNormal"> </p>
                        <p class="yiv0598211313MsoNormal">Thanks Flavio,
                          for the things you noticed. This is helpful.
                          My comments are below in the message. </p>
                        <p class="yiv0598211313MsoNormal">Keep checking!</p>
                        <p class="yiv0598211313MsoNormal"> </p>
                        <p class="yiv0598211313MsoNormal">Achim</p>
                        <p class="yiv0598211313MsoNormal"> </p>
                        <div>
                          <div style="border:none;border-top:solid
                            #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in;">
                            <p class="yiv0598211313MsoNormal"><b><span
                                  style="">From:</span></b><span
                                style=""> Flavio Rizzolo &lt;<a
                                  rel="nofollow noopener noreferrer"
                                  shape="rect"
                                  ymailto="mailto:flavio.rizzolo@gmail.com"
                                  target="_blank"
                                  href="mailto:flavio.rizzolo@gmail.com"
                                  moz-do-not-send="true">flavio.rizzolo@gmail.com</a>&gt;
                                <br clear="none">
                                <b>Sent:</b> Freitag, 6. August 2021
                                03:39<br clear="none">
                                <b>To:</b> Wackerow, Joachim &lt;<a
                                  rel="nofollow noopener noreferrer"
                                  shape="rect"
                                  ymailto="mailto:Joachim.Wackerow@gesis.org"
                                  target="_blank"
                                  href="mailto:Joachim.Wackerow@gesis.org"
                                  moz-do-not-send="true">Joachim.Wackerow@gesis.org</a>&gt;;
                                DDI Structural Reform Working Group.
                                &lt;<a rel="nofollow noopener
                                  noreferrer" shape="rect"
                                  ymailto="mailto:ddi-srg@icpsr.umich.edu"
                                  target="_blank"
                                  href="mailto:ddi-srg@icpsr.umich.edu"
                                  moz-do-not-send="true">ddi-srg@icpsr.umich.edu</a>&gt;<br
                                  clear="none">
                                <b>Subject:</b> Re: [DDI-SRG] [CDI] new
                                Canonical XMI after model transform</span></p>
                          </div>
                        </div>
                        <p class="yiv0598211313MsoNormal"><span
                            lang="DE"> </span></p>
                        <p><span lang="DE">A couple of other issues:</span></p>
                        <p><span lang="DE">- The "refine" association
                            seems to have a unique name now, even in the
                            non-unique names xmi. For instance, Concept
                            "refines" IndividualMember. Instead, we have
                            Concept "Concept_refines_IndividualMember"
                            IndividualMember.</span></p>
                        <p><b><i>[JW] The name should be probably
                              removed in the regular XMI file. The long
                              name should be in the version with the
                              unique association names. The background
                              of the refine names is that some UML tools
                              are not able to consume the abstraction
                              stereotypes. They just ignore them which
                              results in a Abstraction relationship
                              without further specification. Using the
                              name is a workaround. But this is
                              confusing in a tool like EA which can
                              consume the abstraction stereotypes. The
                              name repeats what is already expressed in
                              the specific abstraction relationship.
                              Another workaround would be to describe
                              the kind of relationship in the
                              definition.</i></b></p>
                        <p><b><i>I will remove the names in the regular
                              XMI file. I’ll add the long names to the
                              version with the unique association names.</i></b></p>
                        <p><b><i>You could think about if the
                              abstraction definitions could be improved
                              in a way that the kind of relationship is
                              clear even if an UML tool doesn’t
                              understand the related stereotypes like
                              refine.</i></b></p>
                        <p>- Identifier appears in all classes in the
                          inheritance chains. <span lang="DE"> For
                            instance, Activity has Identifier, and so
                            does Step, which is an extension of
                            Activity. However, only the top non-abstract
                            class in any inheritance chain should have
                            Identifiable.</span></p>
                        <p><b><i>[JW] I didn’t think about this.</i></b></p>
                        <p><b><i>I will remove the attribute identifier
                              at all classes which inherit from a
                              non-abstract class.</i></b></p>
                        <p>- Which brings me to the next issue: abstract
                          classes should not be identifiable, should
                          they? <span lang="DE">They are never
                            instantiated, so it seems pointless they hay
                            an identifier.</span></p>
                        <p><b><i><span lang="DE">[JW] Absolutely.</span></i></b></p>
                        <p><b><i>I’ll remove the attribute identifier
                              from abstract classes.</i></b></p>
                        <p>Flavio</p>
                        <p class="yiv0598211313MsoNormal"> </p>
                        <div>
                          <p class="yiv0598211313MsoNormal"><span
                              lang="DE">On 2021-08-05 2:00 p.m., Flavio
                              Rizzolo wrote:</span></p>
                        </div>
                        <blockquote
                          style="margin-top:5.0pt;margin-bottom:5.0pt;">
                          <p><span lang="DE">Achim,</span></p>
                          <p><span lang="DE">A few issues I noticed on a
                              quick review: </span></p>
                          <p><span lang="DE">- The definition of
                              Identifier seems old. It says "Basic
                              object requiring identification. Elements
                              of this type are versioned and provide
                              administrative metadata properties." It's
                              a datatype now, so it should probably say
                              "identifier for objects requiring short-
                              or long-lasting referencing and
                              management", or something like that. The
                              example seems wrong as well "Use for First
                              Order Classes whose content does not need
                              to be discoverable in its own right but
                              needs to be related to multiple classes.".
                              I suggest to remove it.</span></p>
                          <p><b><i>[JW] For the next transformation run,
                                I would need the documentation of both
                                the class attribute identifier and the
                                data type Identifier. It could be the
                                same definition.</i></b></p>
                          <p><b><i>“Identifier for objects requiring
                                short- or long-lasting referencing and
                                management.” seems to be good enough.</i></b></p>
                          <p><b><i>The suggested removal is fine with
                                me.</i></b></p>
                          <p>- Some of the attributes, e.g.
                            ddiIdentifier, uri, appear to be of type
                            "EA_Java_Types_Package". <span lang="DE">I'm
                              not sure how that happened. </span></p>
                          <p><b><i>[JW] I typed them as strings. I will
                                look into this. This is an issue with EA
                                and their use of UML primitives and how
                                they express them in their version of
                                XMI.</i></b></p>
                          <p>- There is a ModelIdentification datatype,
                            right under the DataTypes package, that
                            doesn't seem to be used anywhere. </p>
                          <p><b><i>[JW] I added this already to the
                                public review version. It is not used
                                anywhere in the model but it can be used
                                by any program which uses the model or
                                its representations. This way a program
                                can recognize with which specification
                                and version it deals with.</i></b></p>
                          <p><b><i>This could stay on the level of the
                                data types like currently or it could be
                                located just below DDICDILibrary. What
                                do you think?</i></b></p>
                          <p>- I was just going over the
                            Documentation.xlsx and noticed a couple of
                            enumerations that didn't ring a bell. <span
                              lang="DE">I checked and couldn't find them
                              in the latest EA file. They are
                              WorkflowPattern and StringStructureType.
                              There might be others. I'm not sure where
                              they are coming from.</span></p>
                          <p><b><i>[JW] StringStructureType was removed
                                because I simplified all string data
                                types. It is now an external controlled
                                vocabulary. Hard coding would be too
                                limited.</i></b></p>
                          <p><b><i>WorkflowPattern is not used at all. I
                                removed it but missed to document it.</i></b></p>
                          <p>That's all for now. <span lang="DE">I'll
                              keep checking.</span></p>
                          <p><span lang="DE">Flavio</span></p>
                          <p><span lang="DE"> </span></p>
                          <div>
                            <p class="yiv0598211313MsoNormal"><span
                                lang="DE">On 2021-07-30 2:59 p.m.,
                                Wackerow, Joachim wrote:</span></p>
                          </div>
                          <blockquote
                            style="margin-top:5.0pt;margin-bottom:5.0pt;">
                            <p class="yiv0598211313MsoNormal">I did the
                              programmatic model transformation for a
                              couple of issues we talked about. Prior to
                              that I edited manually the EA model
                              regarding some other issues.</p>
                            <p class="yiv0598211313MsoNormal"> </p>
                            <p class="yiv0598211313MsoNormal">I
                              documented all changes in <a
                                rel="nofollow noopener noreferrer"
                                shape="rect" target="_blank"
href="https://nam10.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.dropbox.com%2Fs%2F8fkxs38snd6ss2d%2FModelTransformation_2021-07-30.docx%3Fdl%3D0&amp;data=04%7C01%7Clarryhoyle%40ku.edu%7C90f00183acdc41690ded08d958dfc001%7C3c176536afe643f5b96636feabbe3c1a%7C0%7C0%7C637638541223322476%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=fcJpNbWGyBHeqSODTIwCgVHjq%2F9gxon7%2F8lB7pagvBE%3D&amp;reserved=0"
                                moz-do-not-send="true">
                                ModelTransformation_2021-07-30.docx</a>.</p>
                            <p class="yiv0598211313MsoNormal">The file
                              lists also some items which need
                              documentation. Volunteers sought.</p>
                            <p class="yiv0598211313MsoNormal"> </p>
                            <p class="yiv0598211313MsoNormal">While
                              doing this work I filed a couple of
                              additional issues:</p>
                            <ol style="margin-top:0in;" type="1"
                              start="1">
                              <li class="yiv0598211313MsoListParagraph"
                                style="color:blue;margin-left:0in;"> <span
                                  class="yiv0598211313MsoHyperlink"><a
                                    rel="nofollow noopener noreferrer"
                                    shape="rect" target="_blank"
href="https://nam10.safelinks.protection.outlook.com/?url=https%3A%2F%2Fddi-alliance.atlassian.net%2Fbrowse%2FCDI-57&amp;data=04%7C01%7Clarryhoyle%40ku.edu%7C90f00183acdc41690ded08d958dfc001%7C3c176536afe643f5b96636feabbe3c1a%7C0%7C0%7C637638541223332464%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=faHh4c%2Fj%2FpM5bQFlonDnJjWeiSGNx4BUurxb88vzKAs%3D&amp;reserved=0"
                                    moz-do-not-send="true"><span
                                      lang="DE">Missing documentation <b>CDI-57</b></span></a></span></li>
                              <li class="yiv0598211313MsoListParagraph"
                                style="color:blue;margin-left:0in;"> <span
                                  class="yiv0598211313MsoHyperlink"><a
                                    rel="nofollow noopener noreferrer"
                                    shape="rect" target="_blank"
href="https://nam10.safelinks.protection.outlook.com/?url=https%3A%2F%2Fddi-alliance.atlassian.net%2Fbrowse%2FCDI-56&amp;data=04%7C01%7Clarryhoyle%40ku.edu%7C90f00183acdc41690ded08d958dfc001%7C3c176536afe643f5b96636feabbe3c1a%7C0%7C0%7C637638541223332464%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=ZSjwVi%2BsDyC5HMdMHfDPhzmYpWK6EBbb5Wg7Cc54eFI%3D&amp;reserved=0"
                                    moz-do-not-send="true">Boolean class
                                    attributes: should they have a
                                    default value? <b>CDI-56</b></a></span></li>
                              <li class="yiv0598211313MsoListParagraph"
                                style="color:blue;margin-left:0in;"> <span
                                  class="yiv0598211313MsoHyperlink"><a
                                    rel="nofollow noopener noreferrer"
                                    shape="rect" target="_blank"
href="https://nam10.safelinks.protection.outlook.com/?url=https%3A%2F%2Fddi-alliance.atlassian.net%2Fbrowse%2FCDI-55&amp;data=04%7C01%7Clarryhoyle%40ku.edu%7C90f00183acdc41690ded08d958dfc001%7C3c176536afe643f5b96636feabbe3c1a%7C0%7C0%7C637638541223342460%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=XYiTITReBO%2BMSZJD%2FspKTP%2FExt%2F3ew%2BBow9tLMUOV84%3D&amp;reserved=0"
                                    moz-do-not-send="true">Data type
                                    ObjectName attributes are not clear.
                                    <b><span lang="DE">CDI-55</span></b></a></span><span
                                  style="color:windowtext;"> </span></li>
                              <li class="yiv0598211313MsoListParagraph"
                                style="color:blue;margin-left:0in;"> <span
                                  class="yiv0598211313MsoHyperlink"><a
                                    rel="nofollow noopener noreferrer"
                                    shape="rect" target="_blank"
href="https://nam10.safelinks.protection.outlook.com/?url=https%3A%2F%2Fddi-alliance.atlassian.net%2Fbrowse%2FCDI-54&amp;data=04%7C01%7Clarryhoyle%40ku.edu%7C90f00183acdc41690ded08d958dfc001%7C3c176536afe643f5b96636feabbe3c1a%7C0%7C0%7C637638541223342460%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=LHIeTvUxcWyv6Q9wqXlST3UiYUJzYWyUOvF3rGThc0M%3D&amp;reserved=0"
                                    moz-do-not-send="true">Data type
                                    name "SpecificationType" too generic
                                    <b>CDI-54</b></a></span></li>
                              <li class="yiv0598211313MsoListParagraph"
                                style="margin-left:0in;"><span
                                  class="yiv0598211313MsoHyperlink"><a
                                    rel="nofollow noopener noreferrer"
                                    shape="rect" target="_blank"
href="https://nam10.safelinks.protection.outlook.com/?url=https%3A%2F%2Fddi-alliance.atlassian.net%2Fbrowse%2FCDI-58&amp;data=04%7C01%7Clarryhoyle%40ku.edu%7C90f00183acdc41690ded08d958dfc001%7C3c176536afe643f5b96636feabbe3c1a%7C0%7C0%7C637638541223352454%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=HiNxBmzdMDp9GI93%2FqMON6HJklaqgT9uEgv86lcuXvE%3D&amp;reserved=0"
                                    moz-do-not-send="true">Review names
                                    of enumerations and data types.
                                    Several have the suffix 'type'. <b><span
                                        lang="DE">CDI-58</span></b></a></span></li>
                            </ol>
                            <p class="yiv0598211313MsoNormal"> </p>
                            <p class="yiv0598211313MsoNormal">The new
                              files include everything below
                              DDICDIModels. The abstraction stereotypes
                              like trace are maintained. Diagrams get
                              lost in this process.</p>
                            <p class="yiv0598211313MsoNormal">The new
                              XMI files (<a rel="nofollow noopener
                                noreferrer" shape="rect" target="_blank"
href="https://nam10.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.dropbox.com%2Fs%2Foizidnadhqeo1s7%2FDDI-CDI_2021-07-30.xmi%3Fdl%3D0&amp;data=04%7C01%7Clarryhoyle%40ku.edu%7C90f00183acdc41690ded08d958dfc001%7C3c176536afe643f5b96636feabbe3c1a%7C0%7C0%7C637638541223352454%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=leUhBgg258UiamqdktvsK15NTstsvv0gLaVAS%2BPg6eY%3D&amp;reserved=0"
                                moz-do-not-send="true">DDI-CDI_2021-07-30.xmi</a>,
                              <a rel="nofollow noopener noreferrer"
                                shape="rect" target="_blank"
href="https://nam10.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.dropbox.com%2Fs%2Fsv3h4cof4i499xx%2FDDI-CDI_UniqueAssociationNames_2021-07-30.xmi%3Fdl%3D0&amp;data=04%7C01%7Clarryhoyle%40ku.edu%7C90f00183acdc41690ded08d958dfc001%7C3c176536afe643f5b96636feabbe3c1a%7C0%7C0%7C637638541223362451%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=nUIHHZaIxk5f46RCQbjOJ5wI6hRnhFvWqx8zpFJiaSg%3D&amp;reserved=0"
                                moz-do-not-send="true">
                                DDI-CDI_UniqueAssociationNames_2021-07-30.xmi</a>)
                              are available for download.</p>
                            <p class="yiv0598211313MsoNormal">Please
                              review. There might be issues.</p>
                            <p class="yiv0598211313MsoNormal"> </p>
                            <p class="yiv0598211313MsoNormal">Achim</p>
                            <p class="yiv0598211313MsoNormal"
                              style="margin-bottom:12.0pt;"><span
                                style="" lang="DE"> </span></p>
                            <pre><span lang="DE">_______________________________________________</span></pre>
                            <pre><span lang="DE">DDI-SRG mailing list</span></pre>
                            <pre><span lang="DE"><a rel="nofollow noopener noreferrer" shape="rect" ymailto="mailto:DDI-SRG@icpsr.umich.edu" target="_blank" href="mailto:DDI-SRG@icpsr.umich.edu" moz-do-not-send="true">DDI-SRG@icpsr.umich.edu</a></span></pre>
                            <pre><span lang="DE"><a rel="nofollow noopener noreferrer" shape="rect" target="_blank" href="https://nam10.safelinks.protection.outlook.com/?url=http%3A%2F%2Flists.icpsr.umich.edu%2Fmailman%2Flistinfo%2Fddi-srg&amp;data=04%7C01%7Clarryhoyle%40ku.edu%7C90f00183acdc41690ded08d958dfc001%7C3c176536afe643f5b96636feabbe3c1a%7C0%7C0%7C637638541223372444%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=CHEvcw%2BTHHfyBNDnOsWB%2BOe%2FQTi9fqQclyJ%2FB4oUXE8%3D&amp;reserved=0" moz-do-not-send="true">http://lists.icpsr.umich.edu/mailman/listinfo/ddi-srg</a></span></pre>
                          </blockquote>
                        </blockquote>
                        <p class="yiv0598211313MsoNormal"><br
                            clear="none">
                          <br clear="none">
                        </p>
                        <pre>_______________________________________________</pre>
                        <pre>DDI-SRG mailing list</pre>
                        <pre><a rel="nofollow noopener noreferrer" shape="rect" ymailto="mailto:DDI-SRG@icpsr.umich.edu" target="_blank" href="mailto:DDI-SRG@icpsr.umich.edu" moz-do-not-send="true">DDI-SRG@icpsr.umich.edu</a></pre>
                        <pre><a rel="nofollow noopener noreferrer" shape="rect" target="_blank" href="https://nam10.safelinks.protection.outlook.com/?url=http%3A%2F%2Flists.icpsr.umich.edu%2Fmailman%2Flistinfo%2Fddi-srg&amp;data=04%7C01%7Clarryhoyle%40ku.edu%7C90f00183acdc41690ded08d958dfc001%7C3c176536afe643f5b96636feabbe3c1a%7C0%7C0%7C637638541223372444%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=CHEvcw%2BTHHfyBNDnOsWB%2BOe%2FQTi9fqQclyJ%2FB4oUXE8%3D&amp;reserved=0" moz-do-not-send="true">http://lists.icpsr.umich.edu/mailman/listinfo/ddi-srg</a></pre>
                      </blockquote>
                    </div>
                  </div>
                </div>
              </div>
              <div class="yqt5352420460" id="yqt57365">_______________________________________________<br
                  clear="none">
                DDI-SRG mailing list<br clear="none">
                <a shape="rect" ymailto="mailto:DDI-SRG@icpsr.umich.edu"
                  href="mailto:DDI-SRG@icpsr.umich.edu"
                  moz-do-not-send="true">DDI-SRG@icpsr.umich.edu</a><br
                  clear="none">
                <a shape="rect"
                  href="http://lists.icpsr.umich.edu/mailman/listinfo/ddi-srg"
                  target="_blank" moz-do-not-send="true">http://lists.icpsr.umich.edu/mailman/listinfo/ddi-srg</a><br
                  clear="none">
              </div>
            </div>
          </div>
        </div>
      </blockquote>
    </blockquote>
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