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	<id>https://docs.opentaps.org/docs/index.php?action=history&amp;feed=atom&amp;title=Bill_Of_Material</id>
	<title>Bill Of Material - Revision history</title>
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	<updated>2026-04-07T04:53:52Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://docs.opentaps.org/docs/index.php?title=Bill_Of_Material&amp;diff=5390&amp;oldid=prev</id>
		<title>Claudefeistel2 at 21:30, 26 January 2010</title>
		<link rel="alternate" type="text/html" href="https://docs.opentaps.org/docs/index.php?title=Bill_Of_Material&amp;diff=5390&amp;oldid=prev"/>
		<updated>2010-01-26T21:30:54Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;Revision as of 21:30, 26 January 2010&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot; &gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;A bill the material defines what parts or components are used &lt;/del&gt;to &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;manufacture a product.  In opentaps, you can define a bill of material of unlimited depth, meaning that the components could themselves be manufactured from lower-level components without limitation.  &lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;==Introduction &lt;/ins&gt;to &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Bill Of Material==&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;Each &lt;/del&gt;bill &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;of &lt;/del&gt;material &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;component has a quantity associated with it which &lt;/del&gt;defines &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;how many of this component is &lt;/del&gt;used &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;for one of the manufactured &lt;/del&gt;product.  &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;For example, &lt;/del&gt;a &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;laptop could have one screen and two USB ports associate with it.  In this case&lt;/del&gt;, the &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;quantities would &lt;/del&gt;be &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;one screen to one laptop and two USB ports to one laptop&lt;/del&gt;.   &lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;A &lt;/ins&gt;bill &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;the &lt;/ins&gt;material defines &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;what parts or components are &lt;/ins&gt;used &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;to manufacture a &lt;/ins&gt;product.  &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;In '''opentaps''' you can define &lt;/ins&gt;a &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;bill of material having nested subassemblies of unlimited depth&lt;/ins&gt;, &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;meaning that &lt;/ins&gt;the &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;components could themselves &lt;/ins&gt;be &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;manufactured from lower-level subassemblies without limitation&lt;/ins&gt;.   &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;Bill &lt;/del&gt;of material component quantities can &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;be fractions&lt;/del&gt;, which may cause fractional quantities to be required when the finished product is being manufactured or planned.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;'''Component Quantities'''&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Each component in a bill &lt;/ins&gt;of material &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;has a quantity specified which defines how many of this &lt;/ins&gt;component &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;is used for one unit of the manufactured product.  For example, a laptop could have one screen and two USB ports associate with it.  In this case, the &lt;/ins&gt;quantities &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;would be one screen to one laptop and two USB ports to one laptop.  &lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Bill of material items &lt;/ins&gt;can &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;have fractional quantities&lt;/ins&gt;, which may cause fractional quantities to be required when the finished product is being manufactured or planned.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;You can also define fractional quantities in a bill of material to model relationships, where a large batch of something is used to make smaller batches.  For example, 1 pound of bulk milk powder could be used to manufacture 1/16 of a retail bag of powder.  This, however, may cause small rounding errors, depending on the quantities involved.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;You can also define fractional quantities in a bill of material to model relationships, where a large batch of something is used to make smaller batches.  For example, 1 pound of bulk milk powder could be used to manufacture 1/16 of a retail bag of powder.  This, however, may cause small rounding errors, depending on the quantities involved.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Finally, a bill of material component could also have a scrap factor associated with it.  The scrap factor is used in [[Material Resources Planning]] to prepare additional quantities for production.  For example, if a bill of material component has a quantity of 2 but a scrap factor of 50%, [[Material Resources Planning]] and build material simulations will say that 3 of this component is required per 1 finished product.  The scrap factor could also be a negative number to be used as a &amp;quot;salvage factor,&amp;quot; in case the part could be salvaged from some existing stockpile instead of ordered or manufactured again.  For example, a bill of material component has a quantity of 2 but a scrap factor of -50%, then only 1 will be required per each finished product.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;'''Scrap Factor'''&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Finally, a bill of material component could also have a scrap factor associated with it.  The scrap factor is used in [[Material Resources Planning]] to prepare additional quantities for production.  For example, if a bill of material component has a quantity of 2 but a scrap factor of 50%, [[Material Resources Planning]] and build material simulations will say that 3 of this component is required per 1 finished product.   &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The scrap factor could also be a negative number to be used as a &amp;quot;salvage factor,&amp;quot; in case the part could be salvaged from some existing stockpile instead of ordered or manufactured again.  For example, a bill of material component has a quantity of 2 but a scrap factor of -50%, then only 1 will be required per each finished product&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;In opentaps version 1.4, you can define alternative BOMs for different production processes, or routings.  For more information, see [[Using Alternate Bom]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;==Using the BOM Screens and Functions==&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Refer to [[Edit Bom Screen]] to Create or Edit the BOM for a product.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Refer to [[Bom Simulation Screen]] for guidance on simulating production of the product and interpreting the graphical report that is produced by simulation&lt;/ins&gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;In opentaps version 1.4, you can define alternatives BOMs for different production processes, or routings.  For more information, see &lt;/del&gt;[[Using Alternate Bom]]&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Refer to &lt;/ins&gt;[[Using Alternate Bom]] &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;for an example of how to set up alternate production routings and associated BOMs.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Claudefeistel2</name></author>
		
	</entry>
	<entry>
		<id>https://docs.opentaps.org/docs/index.php?title=Bill_Of_Material&amp;diff=4640&amp;oldid=prev</id>
		<title>Sichen at 18:47, 19 October 2009</title>
		<link rel="alternate" type="text/html" href="https://docs.opentaps.org/docs/index.php?title=Bill_Of_Material&amp;diff=4640&amp;oldid=prev"/>
		<updated>2009-10-19T18:47:21Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
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				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;Revision as of 18:47, 19 October 2009&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l7&quot; &gt;Line 7:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 7:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;You can also define fractional quantities in a bill of material to model relationships, where a large batch of something is used to make smaller batches.  For example, 1 pound of bulk milk powder could be used to manufacture 1/16 of a retail bag of powder.  This, however, may cause small rounding errors, depending on the quantities involved.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;You can also define fractional quantities in a bill of material to model relationships, where a large batch of something is used to make smaller batches.  For example, 1 pound of bulk milk powder could be used to manufacture 1/16 of a retail bag of powder.  This, however, may cause small rounding errors, depending on the quantities involved.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Finally, a bill of material component could also have a scrap factor associated with it.  The scrap factor is used in [[&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;Materials Resource &lt;/del&gt;Planning]] to prepare additional quantities for production.  For example, if a bill of material component has a quantity of 2 but a scrap factor of 50%, [[&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;Materials Resource &lt;/del&gt;Planning]] and build material simulations will say that 3 of this component is required per 1 finished product.  The scrap factor could also be a negative number to be used as a &amp;quot;salvage factor,&amp;quot; in case the part could be salvaged from some existing stockpile instead of ordered or manufactured again.  For example, a bill of material component has a quantity of 2 but a scrap factor of -50%, then only 1 will be required per each finished product.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Finally, a bill of material component could also have a scrap factor associated with it.  The scrap factor is used in [[&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Material Resources &lt;/ins&gt;Planning]] to prepare additional quantities for production.  For example, if a bill of material component has a quantity of 2 but a scrap factor of 50%, [[&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Material Resources &lt;/ins&gt;Planning]] and build material simulations will say that 3 of this component is required per 1 finished product.  The scrap factor could also be a negative number to be used as a &amp;quot;salvage factor,&amp;quot; in case the part could be salvaged from some existing stockpile instead of ordered or manufactured again.  For example, a bill of material component has a quantity of 2 but a scrap factor of -50%, then only 1 will be required per each finished product.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;In opentaps version 1.4, you can define alternatives BOMs for different production processes, or routings.  For more information, see [[Using Alternate Bom]]&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;In opentaps version 1.4, you can define alternatives BOMs for different production processes, or routings.  For more information, see [[Using Alternate Bom]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Sichen</name></author>
		
	</entry>
	<entry>
		<id>https://docs.opentaps.org/docs/index.php?title=Bill_Of_Material&amp;diff=3821&amp;oldid=prev</id>
		<title>Sichen at 18:34, 26 March 2009</title>
		<link rel="alternate" type="text/html" href="https://docs.opentaps.org/docs/index.php?title=Bill_Of_Material&amp;diff=3821&amp;oldid=prev"/>
		<updated>2009-03-26T18:34:08Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;Revision as of 18:34, 26 March 2009&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l9&quot; &gt;Line 9:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 9:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Finally, a bill of material component could also have a scrap factor associated with it.  The scrap factor is used in [[Materials Resource Planning]] to prepare additional quantities for production.  For example, if a bill of material component has a quantity of 2 but a scrap factor of 50%, [[Materials Resource Planning]] and build material simulations will say that 3 of this component is required per 1 finished product.  The scrap factor could also be a negative number to be used as a &amp;quot;salvage factor,&amp;quot; in case the part could be salvaged from some existing stockpile instead of ordered or manufactured again.  For example, a bill of material component has a quantity of 2 but a scrap factor of -50%, then only 1 will be required per each finished product.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Finally, a bill of material component could also have a scrap factor associated with it.  The scrap factor is used in [[Materials Resource Planning]] to prepare additional quantities for production.  For example, if a bill of material component has a quantity of 2 but a scrap factor of 50%, [[Materials Resource Planning]] and build material simulations will say that 3 of this component is required per 1 finished product.  The scrap factor could also be a negative number to be used as a &amp;quot;salvage factor,&amp;quot; in case the part could be salvaged from some existing stockpile instead of ordered or manufactured again.  For example, a bill of material component has a quantity of 2 but a scrap factor of -50%, then only 1 will be required per each finished product.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;In opentaps version 1.4, you can define alternatives BOMs for different production processes, or routings.  For more information, see [[Using &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;Alternative &lt;/del&gt;Bom]]&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;In opentaps version 1.4, you can define alternatives BOMs for different production processes, or routings.  For more information, see [[Using &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Alternate &lt;/ins&gt;Bom]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Sichen</name></author>
		
	</entry>
	<entry>
		<id>https://docs.opentaps.org/docs/index.php?title=Bill_Of_Material&amp;diff=3820&amp;oldid=prev</id>
		<title>Sichen at 18:33, 26 March 2009</title>
		<link rel="alternate" type="text/html" href="https://docs.opentaps.org/docs/index.php?title=Bill_Of_Material&amp;diff=3820&amp;oldid=prev"/>
		<updated>2009-03-26T18:33:18Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;Revision as of 18:33, 26 March 2009&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l8&quot; &gt;Line 8:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 8:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Finally, a bill of material component could also have a scrap factor associated with it.  The scrap factor is used in [[Materials Resource Planning]] to prepare additional quantities for production.  For example, if a bill of material component has a quantity of 2 but a scrap factor of 50%, [[Materials Resource Planning]] and build material simulations will say that 3 of this component is required per 1 finished product.  The scrap factor could also be a negative number to be used as a &amp;quot;salvage factor,&amp;quot; in case the part could be salvaged from some existing stockpile instead of ordered or manufactured again.  For example, a bill of material component has a quantity of 2 but a scrap factor of -50%, then only 1 will be required per each finished product.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Finally, a bill of material component could also have a scrap factor associated with it.  The scrap factor is used in [[Materials Resource Planning]] to prepare additional quantities for production.  For example, if a bill of material component has a quantity of 2 but a scrap factor of 50%, [[Materials Resource Planning]] and build material simulations will say that 3 of this component is required per 1 finished product.  The scrap factor could also be a negative number to be used as a &amp;quot;salvage factor,&amp;quot; in case the part could be salvaged from some existing stockpile instead of ordered or manufactured again.  For example, a bill of material component has a quantity of 2 but a scrap factor of -50%, then only 1 will be required per each finished product.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;In opentaps version 1.4, you can define alternatives BOMs for different production processes, or routings.  For more information, see [[Using Alternative Bom]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Sichen</name></author>
		
	</entry>
	<entry>
		<id>https://docs.opentaps.org/docs/index.php?title=Bill_Of_Material&amp;diff=2679&amp;oldid=prev</id>
		<title>Sichen: Protected &quot;Bill Of Material&quot;: Sysop page [edit=sysop:move=sysop]</title>
		<link rel="alternate" type="text/html" href="https://docs.opentaps.org/docs/index.php?title=Bill_Of_Material&amp;diff=2679&amp;oldid=prev"/>
		<updated>2008-03-21T17:58:53Z</updated>

		<summary type="html">&lt;p&gt;Protected &amp;quot;&lt;a href=&quot;/docs/index.php?title=Bill_Of_Material&quot; title=&quot;Bill Of Material&quot;&gt;Bill Of Material&lt;/a&gt;&amp;quot;: Sysop page [edit=sysop:move=sysop]&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;Revision as of 17:58, 21 March 2008&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-notice&quot; lang=&quot;en&quot;&gt;&lt;div class=&quot;mw-diff-empty&quot;&gt;(No difference)&lt;/div&gt;
&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;</summary>
		<author><name>Sichen</name></author>
		
	</entry>
	<entry>
		<id>https://docs.opentaps.org/docs/index.php?title=Bill_Of_Material&amp;diff=2678&amp;oldid=prev</id>
		<title>Sichen: New page: A bill the material defines what parts or components are used to manufacture a product.  In opentaps, you can define a bill of material of unlimited depth, meaning that the components coul...</title>
		<link rel="alternate" type="text/html" href="https://docs.opentaps.org/docs/index.php?title=Bill_Of_Material&amp;diff=2678&amp;oldid=prev"/>
		<updated>2008-03-21T17:58:53Z</updated>

		<summary type="html">&lt;p&gt;New page: A bill the material defines what parts or components are used to manufacture a product.  In opentaps, you can define a bill of material of unlimited depth, meaning that the components coul...&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;A bill the material defines what parts or components are used to manufacture a product.  In opentaps, you can define a bill of material of unlimited depth, meaning that the components could themselves be manufactured from lower-level components without limitation.  &lt;br /&gt;
&lt;br /&gt;
Each bill of material component has a quantity associated with it which defines how many of this component is used for one of the manufactured product.  For example, a laptop could have one screen and two USB ports associate with it.  In this case, the quantities would be one screen to one laptop and two USB ports to one laptop.  &lt;br /&gt;
&lt;br /&gt;
Bill of material component quantities can be fractions, which may cause fractional quantities to be required when the finished product is being manufactured or planned.&lt;br /&gt;
&lt;br /&gt;
You can also define fractional quantities in a bill of material to model relationships, where a large batch of something is used to make smaller batches.  For example, 1 pound of bulk milk powder could be used to manufacture 1/16 of a retail bag of powder.  This, however, may cause small rounding errors, depending on the quantities involved.&lt;br /&gt;
&lt;br /&gt;
Finally, a bill of material component could also have a scrap factor associated with it.  The scrap factor is used in [[Materials Resource Planning]] to prepare additional quantities for production.  For example, if a bill of material component has a quantity of 2 but a scrap factor of 50%, [[Materials Resource Planning]] and build material simulations will say that 3 of this component is required per 1 finished product.  The scrap factor could also be a negative number to be used as a &amp;quot;salvage factor,&amp;quot; in case the part could be salvaged from some existing stockpile instead of ordered or manufactured again.  For example, a bill of material component has a quantity of 2 but a scrap factor of -50%, then only 1 will be required per each finished product.&lt;/div&gt;</summary>
		<author><name>Sichen</name></author>
		
	</entry>
</feed>