712 resultados para construction supply chain management


Relevância:

100.00% 100.00%

Publicador:

Relevância:

100.00% 100.00%

Publicador:

Resumo:

敏捷供应链是企业适应市场环境的变化而演化出的动作模式,是属于开放的复杂巨系统范畴。而处理开放的复杂巨系统的有效方法是综合集成研讨厅体系。论文首先介绍了复杂性、复杂系统;分析了敏捷供应链的复杂性,指出敏捷供应链是一个开放的复杂巨系统;提出用综合集成研讨厅体系的思想研究敏捷供应链管理问题,给出了一个敏捷供应链管理的研讨框架,为敏捷供应链管理问题的研究提供了一个新的思路;提出将ARIS(集成信息系统体系结构)引入到综合集成研讨厅中,对供应链进行建模仿真,以支持核心企业实施敏捷供应链管理。

Relevância:

100.00% 100.00%

Publicador:

Resumo:

众所周知,供应链管理(Supply Chain Management, SCM)是一个极其复杂的系统,自从上个世纪70年代以来,经济全球化的趋势以及信息技术的快速发展,给本来已经极其热门的供应链管理领域又提供了无穷的发展空间。这个领域里面不断出现新的挑战,其中的种种难题几乎都跟供应链系统的复杂性和不确定性特征息息相关。 无线射频识别(Radio Frequency Identification,RFID)技术是通过无线射频方式进行非接触双向通信的自动化识别与数据获取技术,在多目标识别、移动目标识别和单品识别等应用领域具有极大的优势,广泛应用于国防、制造、医疗、零售、物流等诸多领域,被誉为21世纪最热门的技术之一。近年来RFID技术受到工业界和学术界高度关注,理论研究和实践应用得到了突飞猛进的发展。随着无线射频识别技术的迅速发展和价格的迅速低廉,企业已经越来越多地把信息技术应用于供应链的管理之中,信息技术已成为企业实施供应链管理的不可或缺的手段,它们可以使企业的供应链管理更为有效以及高效。但是在将RFID技术应用到供应链信息管理的过程之中,遇到了许多阻力和困难。在RFID信息网络的构建、网络中海量资源调用、以及跟踪应用等诸多方面都存在还不能解决的问题。 本文在深入研究无线射频识别技术的基础上,结合供应链信息系统的发展现状以及所面临的诸多迫切需要解决的问题,提出了面向供应链服务的RFID信息网络,并设计了RFID网格模型,对RFID网络中的资源优化问题,以及目标跟踪问题进行了专门的研究,提出了行之有效的算法。主要的研究内容包括以下几个方面: 首先,构建了基于RFID系统的供应链信息管理系统的架构,并针对供应链信息系统中存在的种种问题,提出构建面向供应链服务的RFID网络。在详细介绍了当前国内外RFID网络研究与发展的基础上,设计了基于RFID网络的供应链应用体系,并给出了这一RFID网络的基本架构。 其次,根据网格计算理论提出了RFID无线网格体系,分别对RFID无线网格分层组织和系统构建组成进行了详细的描述。设计了RFID网格的供应链应用场景,将RFID网格基础设施安装在制造商分销中心、零售商仓库和零售商商店,通过运行在每个基础实施构件提供RFID数据捕获、数据处理和集成,并对RFID无线网格体系进行了建模以及分析。 再次,针对供应链系统的RFID信息服务瞬时产生海量的RFID信息,资源调度优化存在难点,提出利用粒子群算法,解决这一问题。该算法在求解该类问题时的优点包括:收敛速度快、容易克服早熟、能够优化多目标、能够柔性控制和容易分布式运算等。我们设计了RFID资源任务调度模型,利用经过改进的粒子群算法BPSO对这一模型的进行了求解,并将这一算法与传统的遗传算法的求解进行了仿真比较,可见该算法较遗传算法有较大优势。 最后,在面向供应链系统的RFID信息服务中,跟踪领域具有广泛的应用前景,同时在对环境敏感的对象跟踪领域中联合无线传感器网络也是RFID跟踪应用的一大趋势。针对网络跟踪研究,总结了RFID与无线传感器网络相结合的三种模式,提出以Adhoc的方式将RFID读写器组成一个面向供应链服务的无线跟踪网络,并给出一基于RFID无线网络的跟踪算法,以解决供应链系统中物品的追踪问题。

Relevância:

100.00% 100.00%

Publicador:

Resumo:

本文从现代供应链管理概念及要求出发 ,指出协调与合作在供应链管理中的重要作用 ,应用分布式人工智能理论及分析方法 ,提出了基于多 agent的供应链管理结构 ,定义了各功能agent的作用和职能 ,研究了基于多 agent的供应链管理协作内容、特点及解决方法 ,介绍了基于CORBA的分布式系统开发方法 ,提出了基于 CORBA规范及 KQML协议的支持供应链管理协作研究及开发的软件结构 .

Relevância:

100.00% 100.00%

Publicador:

Resumo:

本文指出面向供应链管理的企业集成是人们对制造业实践和先进制造理论和技术的研究和开发的结果,实现供应链上的企业集成和优化,开发多企业集成控制管理系统是未来制造业追求的目标。本文介绍了企业管理的发展历程,提出了面向供应链的企业集成模式,指出其中信息技术所占的地位。简单介绍了多企业集成的开发方法和我们的方案。  

Relevância:

100.00% 100.00%

Publicador:

Resumo:

供应链管理使企业在变化的市场环境中有效地与其它企业合作 ,取得集体竞争优势。本文首先讨论了后勤学与供应链管理的定义和之间的关系。本文认为供应链管理的核心是物流与信息流的控制。物流控制决策主要包括操作层次的库存补充和运输路径规划 ,以及战略层次的设施地点规划。信息流管理跨越部门与企业的界限将相关的应用集成起来。动态联盟协调各企业内部的生产经营活动 ,战略性地决定物流与信息流的构形。

Relevância:

100.00% 100.00%

Publicador:

Resumo:

Yang, Y., Humphreys, P., & McIvor, R. (2006). Business service quality in an e-commerce environment. Supply Chain Management: An International Journal, 11 (3), 195-201. RAE2008

Relevância:

100.00% 100.00%

Publicador:

Resumo:

Consumer demand is revolutionizing the way products are being produced, distributed and marketed. In relation to the dairy sector in developing countries, aspects of milk quality are receiving more attention from both society and the government. However, milk quality management needs to be better addressed in dairy production systems to guarantee the access of stakeholders, mainly small-holders, into dairy markets. The present study is focused on an analysis of the interaction of the upstream part of the dairy supply chain (farmers and dairies) in the Mantaro Valley (Peruvian central Andes), in order to understand possible constraints both stakeholders face implementing milk quality controls and practices; and evaluate “ex-ante” how different strategies suggested to improve milk quality could affect farmers and processors’ profits. The analysis is based on three complementary field studies conducted between 2012 and 2013. Our work has shown that the presence of a dual supply chain combining both formal and informal markets has a direct impact on dairy production at the technical and organizational levels, affecting small formal dairy processors’ possibilities to implement contracts, including agreements on milk quality standards. The analysis of milk quality management from farms to dairy plants highlighted the poor hygiene in the study area, even when average values of milk composition were usually high. Some husbandry practices evaluated at farm level demonstrated cost effectiveness and a big impact on hygienic quality; however, regular application of these practices was limited, since small-scale farmers do not receive a bonus for producing hygienic milk. On the basis of these two results, we co-designed with formal small-scale dairy processors a simulation tool to show prospective scenarios, in which they could select their best product portfolio but also design milk payment systems to reward farmers’ with high milk quality performances. This type of approach allowed dairy processors to realize the importance of including milk quality management in their collection and manufacturing processes, especially in a context of high competition for milk supply. We concluded that the improvement of milk quality in a smallholder farming context requires a more coordinated effort among stakeholders. Successful implementation of strategies will depend on the willingness of small-scale dairy processors to reward farmers producing high milk quality; but also on the support from the State to provide incentives to the stakeholders in the formal sector.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

Se propone un planteamiento teórico/conceptual para determinar si las relaciones interorganizativas e interpersonales de la netchain de las cooperativas agroalimentarias evolucionan hacia una learning netchain. Las propuestas del trabajo muestran que el mayor grado de asociacionismo y la mayor cooperación/colaboración vertical a lo largo de la cadena están positivamente relacionados con la posición horizontal de la empresa focal más cercana del consumidor final. Esto requiere una planificación y una resolución de problemas de manera conjunta, lo que está positivamente relacionado con el mayor flujo y diversidad de la información/conocimiento obtenido y diseminado a lo largo de la netchain. Al mismo tiempo se necesita desarrollar un contexto social en el que fluya la información/conocimiento y las nuevas ideas de manera informal y esto se logra con redes personales y, principalmente, profesionales y con redes internas y, principalmente, externas. Todo esto permitirá una mayor satisfacción de los socios de la cooperativa agroalimentaria y de sus distribuidores y una mayor intensidad en I+D, convirtiéndose la netchain de la cooperativa agroalimentaria, así, en una learning netchain.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

ntegrated organisational IT systems, such as enterprise resource planning (ERP), supply chain management (SCM) and digital manufacturing (DM), have promised and delivered substantial performance benefits to many adopting firms. However, implementations of such systems have tended to be problematic. ERP projects, in particular, are prone to cost and time overruns, not delivering anticipated benefits and often being abandoned before completion. While research has developed around IT implementation, this has focused mainly on standalone (or discrete), as opposed to integrated, IT systems. Within this literature, organisational (i.e., structural and cultural) characteristics have been found to influence implementation success. The key aims of this research are (a) to investigate the role of organisational characteristics in determining IT implementation success; (b) to determine whether their influence differs for integrated IT and discrete IT projects; and (c) to develop specific guidelines for managers of integrated IT implementations. An in-depth comparative case study of two IT projects was conducted within a major aerospace manufacturing company.