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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Aptos",sans-serif">Hi<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Aptos",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Aptos",sans-serif">I suggest that we should use a different term than
<i>digital thread</i>. We aren’t sewing, and we certainly don’t want our business processes hanging by a thread, or to depend on a thread. I’ve heard people argue whether it should be digital thread vs digital web vs digital tapestry, and in the end these are
just metaphors. We are describing the path that information flows along, the path between connected or linked processes, devices, activities, applications, etc.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Aptos",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Aptos",sans-serif">This weekend I will submit the manuscript for my new MBE book to the publisher. I didn’t include
<i>digital thread</i> anywhere in it. Mainly because the term means different things to different people and I don’t think it’s the right term.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Aptos",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Aptos",sans-serif">Regardless of terminology, I continue to be very impressed with the work you are all doing on this project and I see it as the best work being done in the model-based space.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Aptos",sans-serif"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Aptos",sans-serif">Best Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Aptos",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Aptos",sans-serif">Bryan Fischer<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Aptos",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Aptos",sans-serif">TDP360 LLC<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Aptos",sans-serif">Office/mobile (503) 260-3084<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt">From:</span></b><span style="font-size:11.0pt"> step-manufacturing <step-manufacturing-bounces@steptools.com>
<b>On Behalf Of </b>jan.de.nijs@lmco.com<br>
<b>Sent:</b> Wednesday, April 24, 2024 6:53 AM<br>
<b>To:</b> Rencher (US), Robert J <robert.j.rencher@boeing.com>; Martin Hardwick <hardwick@steptools.com>; step-manufacturing@steptools.com<br>
<b>Subject:</b> Re: [step-manufacturing] EXTERNAL: Re: [EXTERNAL] Reminder: UUIDs for the digital thread<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Great discussion. Thanks for the input.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">My thinking remains that there is exactly 1 digital thread per use case. Define the use case for me, and I will tell you what the digital thread has to be. I am stuck on this idea that the thread defines which
data elements are needed to implement a specific use case.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">So yes, if you agree that there are “n” use cases, then it is likely that there are “n” digital threads (although I think that there are many use cases that share the same digital thread).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">I have a slide deck where I actually prove that point. “Simple” maintenance insights can be derived straight from an MTConnect stream. No need at all for UUID’s, part numbers, serial numbers, quality data.
But just an MTConnect stream is never going to get you OEE. You need many more data elements for that. And for things like dynamic scheduling and (my favorite) causal analytics, you need many more again. There is an effort at UKentucky to look at DT’s of the
cutting process to specifically quantify subsurface damage, which requires a completely different set of data elements. Again, IMO, proving the point that digital threads are use case dependent.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Jan.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt">From:</span></b><span style="font-size:11.0pt"> step-manufacturing <<a href="mailto:step-manufacturing-bounces@steptools.com">step-manufacturing-bounces@steptools.com</a>>
<b>On Behalf Of </b>Rencher (US), Robert J<br>
<b>Sent:</b> Wednesday, April 24, 2024 8:31 AM<br>
<b>To:</b> Martin Hardwick <<a href="mailto:hardwick@steptools.com">hardwick@steptools.com</a>>;
<a href="mailto:step-manufacturing@steptools.com">step-manufacturing@steptools.com</a><br>
<b>Subject:</b> EXTERNAL: Re: [step-manufacturing] [EXTERNAL] Reminder: UUIDs for the digital thread<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Hello Martin,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">There is a continuing discussion regarding the number of digital threads. One perspective is there is only one digital thread. This one digital thread is the system that facilitates interoperability between
disparate systems across the product lifecycle. The other perspective is that there are “n” number of digital threads representing the respective workstreams or value streams utilized throughout the product lifecycle.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Both of these perspectives have advocates in the industry and both have valid arguments. From my perspective the one digital thread approach lacks the depth and detail needed to align with the utility of
the one digital thread. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">I have a conflict today with PLM AG. I’ll try and jump on to this during a break.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Robert<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-family:"Courier New"">Dr. Robert J. Rencher, D.M.<br>
Sr. Systems Engineer,</span><span style="font-size:12.0pt;font-family:"Times New Roman",serif">
<br>
</span><span style="font-family:"Courier New"">Associate Technical Fellow</span><span style="font-size:12.0pt;font-family:"Times New Roman",serif">
<br>
</span><span style="font-family:"Courier New"">Enterprise Engineering</span><span style="font-size:12.0pt;font-family:"Times New Roman",serif">
<br>
</span><span style="font-family:"Courier New"">The Boeing Company<br>
PH: (206)295-0887</span><span style="font-size:12.0pt;font-family:"Times New Roman",serif"><br>
</span><span style="font-family:"Courier New"">email: <a href="mailto:robert.j.rencher@boeing.com">
robert.j.rencher@boeing.com</a></span><span style="font-size:12.0pt;font-family:"Times New Roman",serif">
</span><span style="font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">"Vision without effort is day dreaming, effort without vision is drudgery"</span><span style="font-size:11.0pt">
<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt">From:</span></b><span style="font-size:11.0pt"> Martin Hardwick <<a href="mailto:hardwick@steptools.com">hardwick@steptools.com</a>>
<br>
<b>Sent:</b> Wednesday, April 24, 2024 5:09 AM<br>
<b>To:</b> Rencher (US), Robert J <<a href="mailto:robert.j.rencher@boeing.com">robert.j.rencher@boeing.com</a>>;
<a href="mailto:step-manufacturing@steptools.com">step-manufacturing@steptools.com</a><br>
<b>Subject:</b> Re: [EXTERNAL] [step-manufacturing] Reminder: UUIDs for the digital thread<o:p></o:p></span></p>
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<span style="font-family:"Verdana",sans-serif;color:#212121">EXT email: be mindful of links/attachments.</span><span style="font-size:11.0pt"><o:p></o:p></span></p>
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<pre><span style="color:black"><br> <o:p></o:p></span></pre>
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<p>Hi Robert,<o:p></o:p></p>
<p>I agree there should only be one thread, but because of the digital twin composition, there is a transition between manufacturing and engineering that must be managed.<o:p></o:p></p>
<p>Martin<o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Times New Roman",serif">On 4/23/2024 2:29 PM, Rencher (US), Robert J wrote:<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt">Hello Martin,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Thank you for sharing the diagram. I would suggest an alternate labeling for the engineering and manufacturing digital thread. The generalization of digital thread introduces the categorization of thread
types, i.e. “engineering thread”. If the attempt is to be discrete in assigning a label to a digital thread then a descriptive label that easily identify the purpose/use of the digital thread should be used. Digital Threads align data/information with sequence(d)
events/tasks/objectives. A UUID could be assigned to a digital thread to identify the discrete digital thread use event.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Robert</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-family:"Courier New"">Dr. Robert J. Rencher, D.M.<br>
Sr. Systems Engineer,</span><span style="font-size:12.0pt;font-family:"Times New Roman",serif">
<br>
</span><span style="font-family:"Courier New"">Associate Technical Fellow</span><span style="font-size:12.0pt;font-family:"Times New Roman",serif">
<br>
</span><span style="font-family:"Courier New"">Enterprise Engineering</span><span style="font-size:12.0pt;font-family:"Times New Roman",serif">
<br>
</span><span style="font-family:"Courier New"">The Boeing Company<br>
PH: (206)295-0887</span><span style="font-size:12.0pt;font-family:"Times New Roman",serif"><br>
</span><span style="font-family:"Courier New"">email: <a href="mailto:robert.j.rencher@boeing.com">
robert.j.rencher@boeing.com</a></span><span style="font-size:12.0pt;font-family:"Times New Roman",serif">
</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">"Vision without effort is day dreaming, effort without vision is drudgery"</span><span style="font-size:11.0pt">
</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt">From:</span></b><span style="font-size:11.0pt"> step-manufacturing
<a href="mailto:step-manufacturing-bounces@steptools.com"><step-manufacturing-bounces@steptools.com></a>
<b>On Behalf Of </b>Martin Hardwick<br>
<b>Sent:</b> Tuesday, April 23, 2024 11:08 AM<br>
<b>To:</b> <a href="mailto:step-manufacturing@steptools.com">step-manufacturing@steptools.com</a><br>
<b>Subject:</b> [EXTERNAL] [step-manufacturing] Reminder: UUIDs for the digital thread</span><o:p></o:p></p>
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<span style="font-family:"Verdana",sans-serif;color:#212121">EXT email: be mindful of links/attachments.</span><o:p></o:p></p>
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<pre><span style="color:black"><o:p> </o:p></span></pre>
<pre><span style="color:black"> </span><o:p></o:p></pre>
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<p>All,<o:p></o:p></p>
<p>We will review organizing principles for the digital thread.<o:p></o:p></p>
<p>Martin<o:p></o:p></p>
<p><img border="0" width="1114" height="717" style="width:11.6012in;height:7.4683in" id="Picture_x0020_1" src="cid:image001.png@01DA9619.7BBAF610"><o:p></o:p></p>
<p style="margin-bottom:12.0pt">Topic: UUID's for the Digital Thread<br>
Time: Apr 24, 2024 09:30 AM Eastern Time (US and Canada)<br>
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<pre>-- <o:p></o:p></pre>
<pre>Martin Hardwick<o:p></o:p></pre>
<pre>President STEP Tools, Inc.<o:p></o:p></pre>
<pre>Cell: 518 253-0596<o:p></o:p></pre>
<pre>"The sticky tape wizards"<o:p></o:p></pre>
<pre>"There are billions of STEP files and millions of STEP-NC files"<o:p></o:p></pre>
</blockquote>
<pre>-- <o:p></o:p></pre>
<pre>Martin Hardwick<o:p></o:p></pre>
<pre>President STEP Tools, Inc.<o:p></o:p></pre>
<pre>Cell: 518 253-0596<o:p></o:p></pre>
<pre>"The sticky tape wizards"<o:p></o:p></pre>
<pre>"There are billions of STEP files and millions of STEP-NC files"<o:p></o:p></pre>
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