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Determination of start times and ordering plans for two-period projects with interdependent demand in project-oriented organizations: A case study on molding industry

机译:确定面向项目的组织中具有相互依存需求的两个周期项目的开始时间和订购计划:以成型行业为例

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The objective of the present study is to determine the start times and ordering plans for two-period projects in project-oriented organizations. The following assumptions are made: orders can be placed in either of a project’s two consecutive periods; and the same raw materials are used, which are ordered at the start of the periods according to their interdependent demands. The main innovation of the present research is to develop a model that is mainly based on the two-period newsvendor problem, but assumes that demand is interdependent, i.e. it is actually a combination of inventory and project management. After presenting the model, numerical meth-ods are used to approximate the order quantities for each period. Near-optimal solutions of a numerical example, in a case study on molding industry, are obtained using a genetic algorithm. Results show that the proposed model with interdependent demand provides a better solution than independent demand. The model is applicable to large-scale industrial and construction pro-jects where the majority of raw materials have of the same nature.
机译:本研究的目的是确定面向项目的组织中两个周期项目的开始时间和订购计划。进行以下假设:可以在项目的两个连续期间之一中下订单;并且使用相同的原材料,这些原材料根据其相互依赖的需求在期初订购。本研究的主要创新是开发一种模型,该模型主要基于两期新闻供应商问题,但假设需求是相互依赖的,即实际上是库存和项目管理的结合。提出模型后,使用数字方法来近似计算每个期间的订单数量。在成型行业的案例研究中,使用遗传算法获得了数值示例的近乎最优的解决方案。结果表明,所提出的具有相互依赖需求的模型比独立需求提供了更好的解决方案。该模型适用于大多数原材料具有相同性质的大规模工业和建筑项目。

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