<div dir="ltr"><div dir="ltr"><div><br>REVIEW PERIOD EXTENDED</div><div><br></div><div>We have extended the review period for the DDI 4 Prototype through the end of March 2019. Please feel free to file comments as well as specific issues.</div><div><br></div><p style="margin:0px;padding:0px;text-align:left;color:rgb(51,51,51);text-transform:none;text-indent:0px;letter-spacing:normal;font-size:14px;font-style:normal;font-variant:normal;font-weight:400;text-decoration:none;word-spacing:0px;white-space:normal;background-color:transparent">Review comments are sought on any or all of the following aspects of DDI4:</p><ul style="margin:10px 0px 0px;text-align:left;color:rgb(51,51,51);text-transform:none;text-indent:0px;letter-spacing:normal;font-size:14px;font-style:normal;font-variant:normal;font-weight:400;text-decoration:none;word-spacing:0px;list-style-type:disc;white-space:normal;background-color:transparent"><li style="list-style-type:disc">UML model</li><li style="list-style-type:disc">Individual bindings</li><li style="list-style-type:disc">Documentation content and structure</li><li style="list-style-type:disc">Functional Views - concept and implementation</li><li style="list-style-type:disc">Patterns - concept and implementation of Collections, Process, Methodology, and Signification</li><li style="list-style-type:disc">Overall development process</li><li style="list-style-type:disc">Coverage</li><li style="list-style-type:disc">Specific regions of the model (i.e. conceptual and representation)</li></ul><b></b><i></i><u></u><sub></sub><sup></sup><strike></strike></div><div dir="ltr"><br></div><div dir="ltr">Wendy Thomas,</div><div>Chair, DDI Technical Committee</div><div dir="ltr"><br></div><div class="gmail_quote" dir="ltr"><div class="gmail_attr" dir="ltr">---------- Forwarded message ---------<br>From: <strong class="gmail_sendername" dir="auto">Jared Lyle</strong> <span dir="ltr"><<a href="mailto:lyle@umich.edu">lyle@umich.edu</a>></span><br>Date: Thu, Oct 25, 2018 at 9:10 AM<br>Subject: [DDI-SRG] DDI 4 prototype release<br>To: <<a href="mailto:ddi-users@icpsr.umich.edu">ddi-users@icpsr.umich.edu</a>>, <<a href="mailto:ddi-scientific-board@icpsr.umich.edu">ddi-scientific-board@icpsr.umich.edu</a>>, DDI Structural Reform Working Group. <<a href="mailto:ddi-srg@icpsr.umich.edu">ddi-srg@icpsr.umich.edu</a>>, <<a href="mailto:alliance-experts@icpsr.umich.edu">alliance-experts@icpsr.umich.edu</a>><br>Cc: <<a href="mailto:ddiexecutiveboard@umich.edu">ddiexecutiveboard@umich.edu</a>><br></div><br><br><div dir="ltr">
<b id="gmail-m_-343731923188612191gmail-docs-internal-guid-0f733ab4-7fff-4846-1841-d788dd8bba0a" style="font-weight:normal"><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt" dir="ltr"><span style="color:rgb(0,0,0);font-family:Arial;font-size:11pt;font-style:normal;font-variant:normal;font-weight:400;text-decoration:none;vertical-align:baseline;white-space:pre-wrap;background-color:transparent">Dear colleagues,</span></p><br><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt" dir="ltr"><span style="color:rgb(0,0,0);font-family:Arial;font-size:11pt;font-style:normal;font-variant:normal;font-weight:400;text-decoration:none;vertical-align:baseline;white-space:pre-wrap;background-color:transparent">Last December we provided an <a href="http://www.ddialliance.org/announcement/update-on-ddi-work-product-development" target="_blank">update</a> about development of DDI work products to express continued support for our </span><span style="color:rgb(17,85,204);font-family:Arial;font-size:11pt;font-style:normal;font-variant:normal;font-weight:400;text-decoration:underline;vertical-align:baseline;white-space:pre-wrap;background-color:transparent"><a style="text-decoration:none" href="http://www.ddialliance.org/explore-documentation" target="_blank">stable work products</a> </span><span style="color:rgb(0,0,0);font-family:Arial;font-size:11pt;font-style:normal;font-variant:normal;font-weight:400;text-decoration:none;vertical-align:baseline;white-space:pre-wrap;background-color:transparent">-- including DDI-Codebook (DDI 2) and DDI-Lifecycle (DDI 3) -- and to communicate a mid-2018 prototype release of a new work product called DDI 4.</span></p><br><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt" dir="ltr"><span style="color:rgb(0,0,0);font-family:Arial;font-size:11pt;font-style:normal;font-variant:normal;font-weight:400;text-decoration:none;vertical-align:baseline;white-space:pre-wrap;background-color:transparent">We’re happy to announce the prototype release of DDI 4. This preliminary version is not intended for production but provides an opportunity to test and provide feedback on how the DDI 4 model describes and documents some basic research material, such as a dataset, an instrument, and a codebook. </span></p><br><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt" dir="ltr"><span style="color:rgb(0,0,0);font-family:Arial;font-size:11pt;font-style:normal;font-variant:normal;font-weight:400;text-decoration:none;vertical-align:baseline;white-space:pre-wrap;background-color:transparent">DDI 4 is based on an information model that can be expressed in different technologies, including standard RDF vocabularies and XML structures. This form of model-based standard is a best practice in the standardization world, and several other domains have used this approach for years to structure their domain-specific standards. The development of DDI 4 will enable the standard to stay abreast of current technological changes and guarantee alignment across different technology implementations. More details about the history and origin of DDI 4 can be found on the “Work Products of the DDI Alliance” </span><a style="text-decoration:none" href="http://www.ddialliance.org/about/work-products-of-ddi-alliance" target="_blank"><span style="color:rgb(17,85,204);font-family:Arial;font-size:11pt;font-style:normal;font-variant:normal;font-weight:400;text-decoration:underline;vertical-align:baseline;white-space:pre-wrap;background-color:transparent">web page</span></a><span style="color:rgb(0,0,0);font-family:Arial;font-size:11pt;font-style:normal;font-variant:normal;font-weight:400;text-decoration:none;vertical-align:baseline;white-space:pre-wrap;background-color:transparent">.</span></p><br><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt" dir="ltr"><span style="color:rgb(0,0,0);font-family:Arial;font-size:11pt;font-style:normal;font-variant:normal;font-weight:400;text-decoration:none;vertical-align:baseline;white-space:pre-wrap;background-color:transparent">We look forward to the DDI community testing this prototype release and providing constructive feedback on its future development. Links to the specification and use cases, as well as instructions for comment, are found at: </span></p><br><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt" dir="ltr"><a style="text-decoration:none" href="https://ddi-alliance.atlassian.net/wiki/spaces/DDI4/pages/491666/DDI+4+-+Comment+and+Review" target="_blank"><span style="color:rgb(17,85,204);font-family:Arial;font-size:11pt;font-style:normal;font-variant:normal;font-weight:400;text-decoration:underline;vertical-align:baseline;white-space:pre-wrap;background-color:transparent">DDI 4 Comment and Review Page</span></a></p><br><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt" dir="ltr"><span style="color:rgb(0,0,0);font-family:Arial;font-size:11pt;font-style:normal;font-variant:normal;font-weight:400;text-decoration:none;vertical-align:baseline;white-space:pre-wrap;background-color:transparent">We would love to have as much feedback as possible for our next development meeting on November 26th, but the comment period will extend beyond that. We hope to hear from you! Please feel free to contact <a href="mailto:ddisecretariat@umich.edu" target="_blank">ddisecretariat@umich.edu</a> with questions.</span></p><br><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt" dir="ltr"><span style="color:rgb(153,153,153);font-family:Arial;font-size:9.5pt;font-style:normal;font-variant:normal;font-weight:400;text-decoration:none;vertical-align:baseline;white-space:pre-wrap;background-color:transparent">Jared Lyle</span></p><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt" dir="ltr"><span style="color:rgb(153,153,153);font-family:Arial;font-size:9.5pt;font-style:normal;font-variant:normal;font-weight:400;text-decoration:none;vertical-align:baseline;white-space:pre-wrap;background-color:transparent">Director, DDI Alliance</span></p><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt" dir="ltr"><span style="color:rgb(153,153,153);font-family:Arial;font-size:9.5pt;font-style:normal;font-variant:normal;font-weight:400;text-decoration:none;vertical-align:baseline;white-space:pre-wrap;background-color:transparent">ICPSR, University of Michigan</span></p><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt" dir="ltr"><span style="color:rgb(153,153,153);font-family:Arial;font-size:9.5pt;font-style:normal;font-variant:normal;font-weight:400;text-decoration:none;vertical-align:baseline;white-space:pre-wrap;background-color:transparent">+1 734-763-6075</span></p><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt" dir="ltr"><span style="color:rgb(17,85,204);font-family:Arial;font-size:9.5pt;font-style:normal;font-variant:normal;font-weight:400;text-decoration:none;vertical-align:baseline;white-space:pre-wrap;background-color:transparent"><a href="mailto:lyle@umich.edu" target="_blank">lyle@umich.edu</a></span></p></b><br class="gmail-m_-343731923188612191gmail-Apple-interchange-newline">
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</div><div dir="ltr"><br clear="all"><br>-- <br></div><div class="gmail_signature" dir="ltr"><div>Wendy L. Thomas Phone: +1 612.624.4389</div><div>Data Access Core Director Fax: +1 612.626.8375</div><div>Minnesota Population Center Email: <a href="mailto:wlt@umn.edu" target="_blank">wlt@umn.edu</a></div><div>University of Minnesota</div><div>50 Willey Hall</div><div>225 19th Avenue South</div><div>Minneapolis, MN 55455</div></div></div>