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原帖由 azqf 于 2008-1-24 19:09 发表 ![]()
搞了半天,原来是这个东东啊
多工厂计划无非就是三个过程:
1,工厂间调拔。2,从替代工厂领料。3,从替代工厂中生产。
你说的是正确的,MRP计算中应该包括多工厂的计算。
DRP翻译过来,是指动态订单需求吧?分销渠道的净需求与协同预测啥关系?这在需求管理中进行处理,考虑到各个渠道的需求加本身的需求,产生完整的独立需求,其实说白了也就是销售订单需求。
我对些持保留意见,别想着MPS能在可统计到分钟的需求变化中还能保持它的神圣,动态,它也是要有范围的。
DRP里的D不是dynamic(动态的),而是distribution。DRP(distribution replenishment planning)翻译过来是分销资源计划。分销资源计划的狭义含义在于对分销网络上的库存进行计划和管理。这里的分销网络不仅仅包含了工厂,还包含了供应链上的其他接点,比如门店,分销中心等等。所以它是一个多级的概念。这个计算的难度,复杂程度比MRP要大的多。
APICS里对DRP的定义:
distribution requirements planning (DRP) or DRP
1) The function of determining the need to replenish inventory at branch warehouses. A time-phased order point approach is used where the planned orders at the branch warehouse level are "exploded" via MRP logic to become gross requirements on the supplying source. In the case of multilevel distribution networks, this explosion process can continue down through the various levels of regional warehouses (master warehouse, factory warehouse, etc.) and become input to the master production schedule. Demand on the supplying sources is recognized as dependent, and standard MRP logic applies. 2) More generally, replenishment inventory calculations, which may be based on other planning approaches such as period order quantities or "replace exactly what was used," rather than being limited to the time-phased order point approach.
distribution resource planning (DRP II) or DRP II
The extension of distribution requirements planning into the planning of the key resources contained in a distribution system: warehouse space, workforce, money, trucks, freight cars, etc. |
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