确认期间&需求期间
<P> 在产品记录的计划页签中有两个字段，用于生产计划。</P><P> -- 确认期间（firm horizon）</P><P> -- 需求期间（demand horizon)</P><p>［此帖子已被 nana 在 2008-3-14 18:17:26 编辑过］Re:确认期间&需求期间
<P>1.确认期间</P><P><STRONG>HELP:</STRONG></P><P><SPAN lang=EN-US style="FONT-SIZE: 10.5pt; COLOR: #4d4d4d; FONT-FAMILY: 宋体; LETTER-SPACING: -0.2pt">This is the planning horizon.<BR>The planning horizon, in </SPAN><SPAN lang=FR style="FONT-SIZE: 10.5pt; COLOR: #4d4d4d; FONT-FAMILY: 宋体; LETTER-SPACING: -0.2pt; mso-ansi-language: FR"><A target=_blank href="mk:@MSITStore:C:\Documents%20and%20Settings\SAGE\Desktop\V145X3_Help.chm::/FLD/PLHUOT.htm"><SPAN lang=EN-US style="COLOR: #4d4d4d; TEXT-DECORATION: none; mso-ansi-language: EN-US; text-underline: none">lead-time unit</SPAN></A></SPAN><SPAN lang=EN-US style="FONT-SIZE: 10.5pt; COLOR: #4d4d4d; FONT-FAMILY: 宋体; LETTER-SPACING: -0.2pt">, is used in calculating the MPS and the net requirements. It is also used to solidify the production plan over a given period. The suggestions used to cover the backorders in this hor izon, are deferred over the first period beyond the horizon. </SPAN><SPAN lang=FR style="FONT-SIZE: 10.5pt; COLOR: #4d4d4d; FONT-FAMILY: 宋体; LETTER-SPACING: -0.2pt; mso-ansi-language: FR">They are subject to a special marking.</SPAN></P><P><SPAN lang=FR style="FONT-SIZE: 10.5pt; COLOR: #4d4d4d; FONT-FAMILY: 宋体; LETTER-SPACING: -0.2pt; mso-ansi-language: FR"><STRONG>解释：</STRONG></SPAN></P><SPAN lang=FR style="FONT-SIZE: 10.5pt; COLOR: #4d4d4d; FONT-FAMILY: 宋体; LETTER-SPACING: -0.2pt; mso-ansi-language: FR"><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt 21pt; TEXT-INDENT: -21pt; mso-list: l0 level1 lfo1; tab-stops: list 21.0pt"><SPAN style="FONT-SIZE: 10.5pt; COLOR: #4d4d4d; FONT-FAMILY: 宋体; LETTER-SPACING: -0.2pt"><FONT face=Wingdings> </FONT>由于接近现场生产的日期，<SPAN lang=FR>MRP/MPS</SPAN>无效也就是不会产生订单的需求。确认期间是一个时间栅栏的概念，如果<SPAN lang=FR>MRP/MPS</SPAN>建议订单落在该期间内，系统会自动取该期间后第一个工作日作为<SPAN lang=FR>MRP/MPS</SPAN>建议订单的日期。</SPAN></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt 21pt; TEXT-INDENT: -21pt; mso-list: l0 level1 lfo1; tab-stops: list 21.0pt"><SPAN style="FONT-SIZE: 10.5pt; COLOR: #4d4d4d; FONT-FAMILY: 宋体; LETTER-SPACING: -0.2pt"></SPAN> </P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt 21pt; TEXT-INDENT: -21pt; mso-list: l0 level1 lfo1; tab-stops: list 21.0pt"><SPAN style="FONT-SIZE: 10.5pt; COLOR: #4d4d4d; FONT-FAMILY: 宋体; LETTER-SPACING: -0.2pt"><STRONG>举例：</STRONG></SPAN></P><SPAN style="FONT-SIZE: 10.5pt; COLOR: #4d4d4d; FONT-FAMILY: 宋体; LETTER-SPACING: -0.2pt"><P><SPAN style="FONT-SIZE: 10.5pt; COLOR: #4d4d4d; FONT-FAMILY: 宋体; LETTER-SPACING: -0.2pt; mso-ansi-language: FR"> 首先在产品地点中设置确认期间为<SPAN lang=FR>1</SPAN>周，生产提前期为<SPAN lang=FR>5</SPAN>工作日，</SPAN><SPAN style="FONT-SIZE: 10.5pt; COLOR: #4d4d4d; FONT-FAMILY: 宋体; LETTER-SPACING: -0.2pt; mso-ansi-language: FR">销售订单交货日期为<SPAN lang=FR>08-03-20<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></SPAN></SPAN></P><SPAN lang=FR><o:p><P><SPAN style="FONT-SIZE: 10.5pt; COLOR: #4d4d4d; FONT-FAMILY: 宋体; LETTER-SPACING: -0.2pt"> 当前日期为<SPAN lang=EN-US>08-3-10</SPAN>，根据一周的确认期间，时间栅栏至<SPAN lang=EN-US>08-3-17</SPAN>。<SPAN lang=EN-US><o:p></o:p></SPAN></SPAN></P><P><SPAN style="FONT-SIZE: 10.5pt; COLOR: #4d4d4d; FONT-FAMILY: 宋体; LETTER-SPACING: -0.2pt"> 而根据<SPAN lang=EN-US>5</SPAN>天生产提前期，<SPAN lang=EN-US>MRP</SPAN>建议订单为<SPAN lang=EN-US>08-03-13</SPAN>，落在确认期间内。<SPAN lang=EN-US><o:p></o:p></SPAN></SPAN></P><P><SPAN style="FONT-SIZE: 10.5pt; COLOR: #4d4d4d; FONT-FAMILY: 宋体; LETTER-SPACING: -0.2pt"> 所以<SPAN lang=EN-US>WOS</SPAN>取确认期间后第一个工作日，即<SPAN lang=EN-US>08-3-18</SPAN>。<SPAN lang=EN-US><o:p></o:p></SPAN></SPAN></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt 21pt; TEXT-INDENT: -21pt; mso-list: l0 level1 lfo1; tab-stops: list 21.0pt"></o:p></SPAN></SPAN> </P></SPAN>Re:确认期间&需求期间
<P>2.需求期间</P><P><STRONG>HELP：</STRONG></P><P><SPAN lang=EN-US style="FONT-SIZE: 10.5pt; COLOR: #4d4d4d; FONT-FAMILY: 宋体; LETTER-SPACING: -0.2pt">It is used to define a time fence that controls how MPS and MRP consider sales forecast records (SOS's) in conjunction with the Demand Horizon Balance flag in the Requirements parameters.<BR>If the Demand Horizon Balance flag is checked, then:<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></SPAN></P><P><SPAN lang=EN-US style="FONT-SIZE: 10.5pt; COLOR: #4d4d4d; FONT-FAMILY: 宋体; LETTER-SPACING: -0.2pt">-Forecast records are ignored until after the time fence<o:p></o:p></SPAN></P><P style="MARGIN-BOTTOM: 12pt"><SPAN lang=EN-US style="FONT-SIZE: 10.5pt; COLOR: #4d4d4d; FONT-FAMILY: 宋体; LETTER-SPACING: -0.2pt">-The greater of the sales orders or forecast values is used<o:p></o:p></SPAN></P><P style="MARGIN-BOTTOM: 12pt"><SPAN lang=EN-US style="FONT-SIZE: 10.5pt; COLOR: #4d4d4d; FONT-FAMILY: 宋体; LETTER-SPACING: -0.2pt">If the Demand Horizon Balance flag is not checked, then:<o:p></o:p></SPAN></P><P><SPAN lang=EN-US style="FONT-SIZE: 10.5pt; COLOR: #4d4d4d; FONT-FAMILY: 宋体; LETTER-SPACING: -0.2pt">-The time fence is ignored and all forecast records are used<o:p></o:p></SPAN></P><P><SPAN lang=EN-US style="FONT-SIZE: 10.5pt; COLOR: #4d4d4d; FONT-FAMILY: 宋体; LETTER-SPACING: -0.2pt">-Both sales orders and forecasts are used independently<o:p></o:p></SPAN></P><P><P><STRONG>解释：</STRONG></P><P></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt 21pt; TEXT-INDENT: -21pt; mso-list: l0 level1 lfo1; tab-stops: list 21.0pt"><SPAN lang=FR style="FONT-SIZE: 10.5pt; COLOR: #4d4d4d; FONT-FAMILY: Wingdings; LETTER-SPACING: -0.2pt; mso-fareast-font-family: Wingdings; mso-bidi-font-family: Wingdings"><SPAN style="mso-list: Ignore"><SPAN style="FONT: 7pt 'Times New Roman'"><FONT face=Wingdings> </FONT> </SPAN></SPAN></SPAN><SPAN style="FONT-SIZE: 10.5pt; COLOR: #4d4d4d; FONT-FAMILY: 宋体; LETTER-SPACING: -0.2pt">这个字段来确定确定独立需求的来源。一般来说，独立需求有两个来源，也就是销售订单和需求预测。如果同时存在销售订单和需求预测，那么根据哪个来确定独立需求呢？我们要结合需求参数里的“请求水平余额（<SPAN lang=FR>forecast offset</SPAN>）”复选框来进行分析。<SPAN lang=FR><o:p></o:p></SPAN></SPAN></P><P style="MARGIN: 5pt 0cm 12pt 10.1pt; TEXT-INDENT: -10.1pt; mso-char-indent-count: -1.0"><SPAN lang=EN-US style="FONT-SIZE: 10.5pt; COLOR: #4d4d4d; FONT-FAMILY: 宋体; LETTER-SPACING: -0.2pt"> --</SPAN><SPAN style="FONT-SIZE: 10.5pt; COLOR: #4d4d4d; FONT-FAMILY: 宋体; LETTER-SPACING: -0.2pt">如果选择“请求水平余额”，那么在需求期间之内取销售订单的值，在需求期间之外取销售订单和需求预测中较大的值。<SPAN lang=EN-US><o:p></o:p></SPAN></SPAN></P><P><SPAN lang=EN-US style="FONT-SIZE: 10.5pt; COLOR: #4d4d4d; FONT-FAMILY: 宋体; LETTER-SPACING: -0.2pt"> --</SPAN><SPAN style="FONT-SIZE: 10.5pt; COLOR: #4d4d4d; FONT-FAMILY: 宋体; LETTER-SPACING: -0.2pt">如果不选择“请求水平余额”，那么不考虑需求期间，销售订单和需求预测是独立的，也就是说独立需求取两者之和。<SPAN lang=EN-US><o:p></o:p></SPAN></SPAN></P><P><P><STRONG></STRONG> </P><P> </P><P> </P><P></P>Re:确认期间&需求期间
<P>好！</P>Re:确认期间&需求期间
<P> </P><P><FONT size=3>需求期间 demand horizen 其实 就是合并需求的 期间, 在 MRP 开始计算的时间 开始之后的 需求期间 定义的 时间段 内, 销售预测 和 确定的销售订单 的产品数量 , 进行合并 取大数, 实际的确定需求去 抵消 预测的需求.</FONT> </P><P> </P><P> 有的软件叫 需求合并.</P><P>［此帖子已被 LiYa 在 2008-3-21 14:04:38 编辑过］</P><p>［此帖子已被 LiYa 在 2008-3-21 14:05:29 编辑过］页:
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