Dynamic optimisation for highly agile supply chains in e-procurement context

In the conditions of an increased worldwide competition, supply chains are struggling to respond to an increasingly volatile and complex environment. With technological advances, current practices to build efficient supply chains have changed. Companies are seeking to use internet in order to cope with the flexible and dynamic nature of logistics networks. The purpose of this article is to address the flexible dynamic e-procurement context under asynchronous and repetitive variations over time. The supply chain considered is composed of two levels (buyer–suppliers) operating in highly agile environment. The questions facing the buyer is how many units of product should be purchased and from which supplier in response to variation in term of price and capacity. Because of this highly changing environment characterised by frequent changes in a short time, most of the classical optimisation approaches seem inadequate to address these problems. Recently, dynamic optimisation has been proposed to deal with such problems. However, we have no knowledge of its application in a supply chain context. We suggest a dynamic genetic approach which is applied to an e-procurement context in aim to optimise the procurement process during time.     

A portfolio approach to supply chain disruption management

A new, computationally efficient portfolio approach to supplier selection in the presence of supply chain disruption risks is proposed, where the selection of supply portfolios for parts is combined with production scheduling of finished products. Unlike most of reported research on the supply chain risk management which focuses on the risk mitigation decisions taken prior to a disruption, the proposed portfolio approach combines decisions made before, during and after the disruption. The two decision-making approaches are considered: an integrated approach with the perfect information about the future disruption scenarios, and a hierarchical approach with no such information available. In the integrated approach, which accounts for all potential disruption scenarios, the primary supply portfolio that will hedge against all scenarios is determined along with the recovery supply portfolio and production schedule for each scenario. In the hierarchical approach, first the primary supply portfolio is determined, and then, when a primary supplier is hit by a disruption, the recovery supply portfolio is selected. For the integrated and the hierarchical decision-making, mixed integer programming models are developed with the two risk-neutral conflicting objectives that account for both time and cost of recovery: minimising expected cost or maximising expected service level. The findings indicate that for both objectives, the integrated decision-making selects a more diversified primary supply portfolio than the hierarchical approach and when all primary suppliers are shutdown by disruption, a single sourcing recovery portfolio is usually selected.     

数据驱动下的智能制造企业供应商效率评价

智能制造环境下,供应商效率评价对于智能制造企业的发展至关重要.本文根据智能制造企业供应商的特点、评价指标体系构建原则和文献总结,构建智能制造企业供应商效率评价指标体系.通过AHP-熵值法确定各评价指标的权重,利用调研收集到的企业数据,结合BP神经网络对效率型供应商进行效率等级划分,并提出改善意见以及相应的激励策略,以此促进企业与供应商的进一步合作交流.案例分析结果表明,此方法对于供应商效率评价具有较强的实用性.     

基于结构熵权—灰关联的绿色供货商评价与选择研究*

为了解决评价选择过程中的不确定性、复杂性等问题,将定性与定量方法相结合,建立了供货商评价与选择指标体系,并提出了一种基于结构熵权—灰关联的绿色供货商评价决策模型。基于熵理论,采用主、客观赋值结合的结构熵权法获得指标综合权重;再使用模糊评判和灰关联,获得结果的关联度排序;最后借助算例验证了模型的有效性,为评价绿色供货商提供了有效的方法。     

供应商关系管理中的关系质量满意模型研究*

针对目前供应商关系管理中关系质量研究缺乏实时决策支持的问题,根据关系质量定义维度特点,结合已有的研究成果,构建了关系质量维度中的动态的满意模型。模型的特点是：通过时间因子实现了满意模型度量的实时性、动态性,且能为不同风格的决策者提供支持;通过价值因子,提高了模型的抗风险性。仿真实验证明了该模型良好的可行性,可以成为供应商关系管理中关系质量实时度量的基础。     

基于CSM的快速化产品设计方法的研究

基于零部件供应商管理 (CSM )的快速化产品设计系统是以变型设计系统为设计辅助工具 ,以零部件和供应商管理为信息管理工具 ,通过网络化的招标、投标管理选择出最佳的供应商 ,从而实现产品的快速化设计。首先介绍了该系统的结构 ,分析了各组成模块的作用。系统的网络计算模式为三层模式 ,包括“用户浏览器层”、“应用服务器层”和“数据库服务器层”。系统地概括了“供应商信息管理”所涉及到的信息内容及其逻辑结构。最后 ,介绍了该系统的初步实现情况。     

工业化住宅预制构件供应商选择方法研究——基于VIKOR模型

针对工业化住宅项目预制构件供应商的选择问题,建立预制构件供应商二级评价指标体系。采用VIKOR模型建立预制构件供应商多指标评价模型,并采用客观赋权的变异系数法确定评价指标的权重系数。最后,通过工程案例计算了基于VIKOR模型的评价参数,并通过对评价结果的分析获得最优预制构件供应商的评价结果。     

军品包装供应商评价指标体系和方法研究

目的 为了实现快速响应、可靠高效的装备（器材）和物资保障,提高军事物流整体质量,对军品包装供应商进行科学管理。方法 构建军品包装供应商的筛选模型,确立评价指标体系,提出一种集历史、现状和未来为一体的新的综合评价方法,并进行算例验证。结果 通过采用科学的评价方法,对军品包装供应商进行综合评价和遴选,解决了军品包装产品筹措和采购环节由于供应商引起的不确定性问题,使军品包装产品质量得到了有效保证。结论 建立军品包装供应商选择和评价体系,是加强供应商管理的重要基础,也是现代军事物流的重要内容,对推动军品包装发展有重要意义。     

能源互联网背景下基于势博弈的多供电主体竞争策略研究

能源互联网背景下,能源供需市场呈现更为显著的智能化和开放性,同时供电主体也逐步呈现多元化、竞争化态势.针对开放性市场环境下多个供电主体竞争并存的格局,分析了单个供电主体与其他供电主体的竞争互动问题,基于势博弈理论构建了多供电主体间的竞争博弈模型.同时,设计了动态互动电价,刺激用户与供电主体间的供需互动,形成以用户需求为...     

基于采购环节重构的供应商关系管理探讨

生产性采购活动是企业生产经营过程中的基本活动。从企业内部基本价值链内的采购环节出发,分析改进下的采购管理所带来的影响。在此基础上,根据客户关系管理（CRM）思想提出的供应商关系管理理论,将供应商关系管理作为采购管理的重要组成部分,对企业加强供应商关系管理的问题加以分析,提出对策。