Los modelos de planeamiento y control de la producción han sido implementados con gran éxito en muchas empresas a nivel mundial, tanto en el ámbito manufacturero como el de los servicios. Actualmente, expertos e investigadores en el tema han encontrado manifestaciones que demuestran carencias en el desarrollo e implementación de este tipo de enfoques en grandes medianas empresas. Por esta razón, el presente artículo propone una metodología de mejora continua (PHVA) que incluye los modelos de planeamiento y control de producción con la finalidad de permitir un desarrollo sostenible y exitoso en el tiempo. La metodología está compuesta por 4 fases que son: a) planificar: en donde se proyecta todo lo que sucede y lo que se tiene que resolver, b) hacer: donde se ejecuta el plan de acción mediante herramientas ingenieriles, c) verificación: donde se valida si es factible el proyecto y, por último, d) actuar: donde se utilizan mecanismos de control. La metodología fue validada en una empresa dedicada a la fabricación de hornos industriales en el Perú, donde la ejecución generó la eliminación de ventas rechazadas por entrega fuera de tiempo en su primer trimestre después de aplicarlo y redujo también los problemas con calidad de insumo en 15% y planificación de compras en 9%. / The production planning and control models have been implemented with great success in many companies worldwide, both in manufacturing and services. Currently, experts and researchers in the field have found demonstrations that show shortcomings in the development and implementation of this type of approaches in large medium-sized enterprises. For this reason, this article proposes a methodology for continuous improvement (PDCA) which includes the models of production planning and control in order to allow for a successful and sustainable development at the time. The methodology is composed of 4 phases that are: a) planning: where everything that happens and what has to be resolved is projected, b) do: where the action plan is executed through engineering tools, c) verification: where it is validated if the project is feasible and finally, d) act: where control mechanisms are used. The methodology was validated in a company dedicated to the manufacture of industrial furnaces in Peru, where the execution generated the elimination of sales rejected by delivery out of time in its first quarter after applying it and reduced the problems with input quality in 15 % and purchase planning at 9%. / Trabajo de Suficiencia Profesional

During a six-month period, the author has studied, observed and analyzed the situation within Skanska ITN, headquartered in Haga Norra, Sweden. Licenses and supplier relationships and management of these are areas Skanska ITN, which delivers and manages IT services and products to Skanska AB, would like to have investigated and analyzed. The problem reveals itself in the current situation because there is no process for managing software asset management (SAM), i.e. management of licenses and software. There are significant savings to be made when it comes to managing licenses and dealing with suppliers. The purpose of this paper is to identify the processes in dealing with the sourcing of licenses, products and services related to IT and to propose a suitable recommendation that can be adopted by Skanska ITN and the SAM processes. During the study the author found several factors such as lack of responsibility and a defined purpose of the SAM process, which had been defined by the global IT department (GSU IT). These were affecting the parties involved and their work tasks regarding sourcing and purchasing licenses.   Three suggestions for improvements and implementations have been presented and these are: Connect the SAM and purchase relationship with IT roadmaps and Enterprise Architecthure (EA) Initiate a common platform as a forum for sharing documents and agreements which can be stored and managed by the SM3 model Examine and analyze the licenses and agreements within the current situation. To be able to perform this a common policy and purpose must be defined for a SAM tool. / Under en sexmånadersperiod har författaren studerat, observerat samt analyserat situationen på Skanska ITNs huvudkontor i Haga Norra, Stockholm. Licenser och inköpsrelationer och hantering av dessa är områden som Skanska ITN, vilka leverarar och förvaltar IT tjänster och produkter för Skanska AB, vill ha undersökta och analyserade. Problemet grundar sig i att det i dagsläget ej finns en process för att hantera software asset management (SAM), i.e. hantering av mjukvara och licenser. Det finns betydande besparingar att göra när det kommer till att hantera licenser och relationer med leverantörer. Syftet med detta examensarbete är att identifiera potentiella processer för att hantera inköp av licenser, produkter och tjänster relaterade till IT, samt rekommendera en kvalificerad lösning som kan anammas av Skanska ITN och SAM processerna, vilken kan identifiera svagheter och brister och optimera dessa. Under studiens gång fann författaren faktorer såsom brist på ansvarsområden och syfte med den SAM process som hade definierats av den globala IT avdelningen (GSU IT), vilken påverkar inblandade parter och dess arbetsområden. Tre förslag till förbättringar och implementationer har presenterats och dessa är: Koppla SAM och inköpsrelationen mot IT roadmaps och Enterprise Erchitecture (EA) Initiera en gemensam plattform i form av ett forum där delning av dokument och avtal kan lagras vilken kan förvaltas av SM3 modellen Inventera samt analysera de licenser och avtal som existerar i dagsläget och de som bör omförhandlas. För att det ska kunna ske måste ett syfte och direktiv vara aktuellt för vilket SAM verktyg som ska användas.

A gestão de fornecedores é uma atividade crítica para a gestão do desempenho de empresas inseridas em redes produtivas. O modelo de segmentação ou portfólio de compras é definido como um processo de separação de fornecedores em grupos em função de diferentes necessidades e características, requerendo diferentes tipos de relacionamentos. Esta técnica tem recebido uma atenção cada vez maior no meio acadêmico e empresarial devido a sua estrutura simples e eficaz na organização de diferentes estratégias de suprimentos. Diferentes propostas de modelos têm sido apresentadas, mas todas com grande presença de variáveis qualitativas. Embora a teoria da lógica fuzzy tenha se demosnstrada adequada no tratamento deste tipo de variável, que tem forte presença de incerteza e imprecisão na coleta e tratamento dos dados, não há na literatura uma investigação de como um sistema de inferência fuzzy poderia ser utilizado em um modelo de portfólio de compras. Desta forma, este trabalho tem por objetivo a proposição de um sistema de inferência fuzzy para auxiliar no processo de tomada de decisão na avaliação e desenvolvimento de fornecedores baseado em modelos de portfolio. Busca-se contribuir com o conhecimento das pesquisas cujo tema envolve a segmentação, avaliação e desenvolvimento de fornecedores. Os procedimentos de pesquisa utilizados no trabalho podem ser agrupados em três partes: pesquisa bibliográfica, desenvolvimento do modelo quantitativo axiomático descritivo e ilustração por meio de duas aplicações práticas. A construção do modelo proposto evidenciou a grande flexibilidade do sistema de inferência, que possibilita modificações nas variáveis e nas bases de regras de acordo com os objetivos estratégicos de suprimentos. As duas aplicações práticas mostraram que os resultados das avaliações e as diretrizes para melhoria foram coerentes com as percepções dos especialistas em gestão de fornecedores das duas empresas. Os sistemas de inferência fuzzy demostraram ser uma alternativa adequada no tratamento das variáveis, em grande parte qualitativas, que compõem as dimensões das matrizes de item comprado e de relacionamento com os fornecedores. / Purchasing and buyer-supplier relationship management have become very critical activities to the performance management of organizations and supply chains. The segmentation or purchase portfolio model is defined as a process of suppliers separation in groups as a function of different needs and characteristics, requiring different kinds of relationships to create value in their exchanges. This approach has received increasing attention in the academic and business due to its simple structure and effective in organizing different suppliers approaches. Different proposals have been presented and all have great use of qualitative variables. Although the theory of fuzzy logic has been developed to the treatment of this type of variable, which has a strong presence of uncertainty and imprecision in the data collection and processing, it couldn´t be found any research exploring how a fuzzy inference system could be used in purchase portfolio models. Thus, this thesis aims to propose a fuzzy inference system to aid the decision making process in the supplier assessment and development based on portfolio models. This research intends to contribute to the segmentation, evaluation and supplier development knowledge. The research procedures used in this study can be grouped into three parts: literature review, development of axiomatic descriptive quantitative model and illustration through two practical applications. The construction of the proposed model showed the great inference system flexibility allows changes in the variables and the rule bases in accordance with the supply strategic objectives. The evaluations results and improvement guidelines in two pratical applicatins were consistent with the supply manager perceptions from both companies. The fuzzy inference systems have shown to be a suitable alternative in the treatment of the variables that make up the dimensions of the purchased itens and supplier relationships matrices.

<p>Principal agent theory is widely used to model supply chain relationship, in which a supplier is the agent and a manufacturer is the principal. Both the manufacturer and supplier can influence product quality and consequentially share costs of product failures. Rich theoretical results under the principal agent model framework have been accumulated in the last two decades, but empirical evidence on whether the Stackelberg’s leadership game truly imitates practical supply chain relationship remains unfound. We study the domestic automobile industry in the last decade and provides to our best knowledge the first empirical evidence to assess the validity and practicality of principal agent theory and draw the implications of principal agent theory on supply chain relationship costs. Our empirical results suggest that Japanese OEMs behave more like principal agent theory suggests than the US OEMs in general and thus gain significant benefits in terms of marginal effort costs in motivating suppliers’ quality improvement behaviors and reducing overall manufacturer’s quality costs. Specifically, Toyota behaves closest to the optimal solution in the principal agent theory and therefore has the lowest manufacturer effort costs in improving product quality and achieves the overall lowest manufacturer’s quality costs in supply chain. Honda and Nissan are ranked 2^nd and 3^rd in terms of principal agent behaviors, but their marginal quality improvement effort costs are 33% and 61% higher than Toyota, and their total manufacturer’s quality costs are both around 17% higher compared to industrial leader Toyota by our estimate. US OEMs GM, Ford and Chrysler are believed to behave inconsistent to principal agent theory suggest, and consequently suffer a much higher marginal effort cost in motivating supplier’s quality improvement than Toyota as well as the overall manufacturer’s quality costs. GM and Ford are estimated doubled marginal effort costs than Toyota, and Chrysler is even higher at 1.6 times. GM’s overall manufacturer’s quality cost is 24% higher than Toyota, Ford is around 31% higher and Chrysler is around 48% higher. Our analysis gives a new perspective from principal agent theory to explain why Japanese OEMs especially Toyota has a better supply chain quality costs than US OEMs as literature and consensus suggested. In addition, we contribute in literature by linking the principal agent theory with automotive industrial data and first ever empirically validate the legitimacy of principal agent theory in modeling manufacturer-supplier relationship and quantitatively derive practical conclusions on marginal effort costs and manufacturer’s total supply chain quality cost implications. To guarantee the robustness of the empirical results, various sensitivity analyses are conducted and our main conclusions remain unchanged. </p>

A gestão de fornecedores é uma atividade crítica para a gestão do desempenho de empresas inseridas em redes produtivas. O modelo de segmentação ou portfólio de compras é definido como um processo de separação de fornecedores em grupos em função de diferentes necessidades e características, requerendo diferentes tipos de relacionamentos. Esta técnica tem recebido uma atenção cada vez maior no meio acadêmico e empresarial devido a sua estrutura simples e eficaz na organização de diferentes estratégias de suprimentos. Diferentes propostas de modelos têm sido apresentadas, mas todas com grande presença de variáveis qualitativas. Embora a teoria da lógica fuzzy tenha se demosnstrada adequada no tratamento deste tipo de variável, que tem forte presença de incerteza e imprecisão na coleta e tratamento dos dados, não há na literatura uma investigação de como um sistema de inferência fuzzy poderia ser utilizado em um modelo de portfólio de compras. Desta forma, este trabalho tem por objetivo a proposição de um sistema de inferência fuzzy para auxiliar no processo de tomada de decisão na avaliação e desenvolvimento de fornecedores baseado em modelos de portfolio. Busca-se contribuir com o conhecimento das pesquisas cujo tema envolve a segmentação, avaliação e desenvolvimento de fornecedores. Os procedimentos de pesquisa utilizados no trabalho podem ser agrupados em três partes: pesquisa bibliográfica, desenvolvimento do modelo quantitativo axiomático descritivo e ilustração por meio de duas aplicações práticas. A construção do modelo proposto evidenciou a grande flexibilidade do sistema de inferência, que possibilita modificações nas variáveis e nas bases de regras de acordo com os objetivos estratégicos de suprimentos. As duas aplicações práticas mostraram que os resultados das avaliações e as diretrizes para melhoria foram coerentes com as percepções dos especialistas em gestão de fornecedores das duas empresas. Os sistemas de inferência fuzzy demostraram ser uma alternativa adequada no tratamento das variáveis, em grande parte qualitativas, que compõem as dimensões das matrizes de item comprado e de relacionamento com os fornecedores. / Purchasing and buyer-supplier relationship management have become very critical activities to the performance management of organizations and supply chains. The segmentation or purchase portfolio model is defined as a process of suppliers separation in groups as a function of different needs and characteristics, requiring different kinds of relationships to create value in their exchanges. This approach has received increasing attention in the academic and business due to its simple structure and effective in organizing different suppliers approaches. Different proposals have been presented and all have great use of qualitative variables. Although the theory of fuzzy logic has been developed to the treatment of this type of variable, which has a strong presence of uncertainty and imprecision in the data collection and processing, it couldn´t be found any research exploring how a fuzzy inference system could be used in purchase portfolio models. Thus, this thesis aims to propose a fuzzy inference system to aid the decision making process in the supplier assessment and development based on portfolio models. This research intends to contribute to the segmentation, evaluation and supplier development knowledge. The research procedures used in this study can be grouped into three parts: literature review, development of axiomatic descriptive quantitative model and illustration through two practical applications. The construction of the proposed model showed the great inference system flexibility allows changes in the variables and the rule bases in accordance with the supply strategic objectives. The evaluations results and improvement guidelines in two pratical applicatins were consistent with the supply manager perceptions from both companies. The fuzzy inference systems have shown to be a suitable alternative in the treatment of the variables that make up the dimensions of the purchased itens and supplier relationships matrices.

Problem: What are the most critical activities for process industry? Whether general view of impact of these value chain activities on product performance (quality, cost and innovation) applied to process industry? How do those activities impact to product performances? If they cannot affect product performance, what could be the reason behind it?   Purpose: This paper aims to conclude general view of impact of value chain activities on product performances (quality, cost and innovation). Accordingly we would create a conceptual model. And then test whether this model applies for process industry and further more figure out the reason behind through case study.   Methodology: In this paper, qualitative research is our approach. We choose single case study as research strategy and conduct three interviews. Documentation and interview data are collected and analyzed to provide theoretical framework and empirical evidence for the whole paper.     Result: Based on case study, and previous work, the model concerning impact of major activities for process industry (Marketing sales, Human Resource and Supplier management) on product performances (Quality, Cost and Innovation) is derived. This model contains answers to nine hypotheses assumed in theoretical part, giving reader a new and easy way to understand process industry.        Conclusions: Distinguished from other industry, process industry with its own unique characteristics does not lend support to all nine hypotheses. Fundamental analysis proved that some assumptions do not establish for process industry while the others may have more significant relationships. To be specific, there exists strong impact of human resource on product quality and cost, supplier management on product cost and also marketing and sales on product quality. But, to our surprise, the other assumed relationships are not that significant while product innovation has adverse affect on marketing and sales.

Diploma thesis is focused on utilization of best practices from IT Infrastructure Library v3 in specific company. ITIL v3 is described in 5 books and by 26 core processes. The objective of this diploma thesis is to find only relevant processes which are designed and described for selected company. General information about ITIL and benefits which are delivered from using ITIL can be found in theoretical part. Frameworks and standards that have synergy with ITIL are also described in theoretical part. Specific company is introduced in practical part, where can be also found quantitative research method, which is used for choosing specific project. Release and Deployment Management, Supplier Management, Asset and Configuration Management is chosen based on results from research.

The Master’s thesis deals with the area of supplier management in a large multinational corporation focused on manufacturing and distribution of medical devices, which has a subsidiary in the Czech Republic. The thesis discusses the analysis of the current set up of supplier management in the facility and there are calculations for effective evaluation of suppliers being proposed on the basis of the analysis. The emphasis is also put on the setting of the system such that it provides the highest possible added value for its users, can be easily implemented in practice and is flexible as well.

Purpose: The purpose of this study is to explore how a multinational company in the automotive industry manages its suppliers in order to increase the environmental sustainability performance of its supply chain. To fulfill this purpose, a research question has been established: 1. How can a manufacturer manage its suppliers in order to increase the environmental sustainability performance of its supply chain? Method: The thesis is conducted using a qualitative research approach which utilizes the method of a single case study, including multiple interviews. All interviews conducted are semi-structured using an interview guide and ethical considerations. Additionally, the empirical findings were supported by organizational documents. Findings: The findings discuss five supplier management approaches that are used frequently in order to increase environmental sustainability within the supply chain. The five approaches consist of sourcing, supplier code of conduct (including standards and certificates), assessment, collaboration, and organizational culture. The different approaches are used strategically, starting off with the importance of sourcing capable suppliers from the beginning, where assessing them within relevant areas is vital. Continuously assessing the suppliers in order to keep track of their performance and improvement is useful to make sure that the performance exceeds the basic requirements and identify areas to improve. Collaborating on different aspects is then conducted in order to improve and develop the identified areas. Lastly, organizational culture is proven to have a strong influence on how the environmental sustainability performance within an organization is doing. Implications: The research did not contribute to any new theories but did, however, increase the overall knowledge of how supplier management is used to increase the environmental sustainability within a supply chain. It showed the strong connection between theory and how it is done in practice, as well as areas in need of implementation in practice. Moreover, the research shows that management approaches should be used holistically and simultaneously in order to reach the best results. Limitations: The study is a single case study where a limited number of interviews have been conducted. In order to increase the credibility, a multiple-cases study with more interviews could have been conducted.

由於競爭環境的變化，使得供應鏈中製造廠商與供應廠商雙方的交易關係(supplier-manufacturer relationship)有了重大的改變，由過去競爭的對立關係，轉變為合作的夥伴關係；中心廠與諸多零配件的供應商形成了一個合作的群聚，來共同滿足買方客戶的需求。台灣中小企業組成的綿密產業網絡便是一個相當好的例證，台灣產業網絡的「彈性」和「速度」特質，使台灣企業能夠在市場急速變化、壓力陡增的情況下，及時進行靈活調適，並整合體系內各種可用的資源，創造特有的競爭優勢。 本研究以個案研究的方式，選擇具動態合作網絡特性的營造業作為母體，來瞭解台灣的營造廠如何建立與維繫一個動態性合作網絡？如何進行網絡成員的分工與連結管理？本研究透過兩個實務個案分析，來瞭解動態合作網絡的分工與連結管理的前因與後果，建立觀念性架構與命題，以作為企業經營業者的參考。 營造廠的「價值活動調整」的取決會受到「環境系絡」、「技術系絡」的影響，當營造廠決定其價值活動涵蓋範疇後，將會面臨價值活動劃分的問題，要在諸多的承包商中選擇合適的對象來負責各式專業工項的執行工作，也就是要進行其「委外對象選擇」的安排，接下來最後就是依據承包商的類型的不同，於此稱之為「網絡關係管理類型」，進行分類管理，最後導致不同的「利潤模式」的選擇。 整體而言，個案公司多年來能在環境景氣循環與競爭壓力的衝擊下，不斷地成長茁壯，核心的概念在於其價值活動涵蓋範疇的動態調整彈性，方能擁有足夠的利潤，持續地追求公司的成長。當環境競爭態勢激烈的時候，就擴大價值活動的涵蓋範圍，將工程進行細部的切割，一方面可以跨過大包商直接發包給小包商，自己進行溝通協調的工作，以降低成本，一方面則可以將專業工項的設計規劃、採購活動等納入公司內部執行，減少外包佔比，提升工程利潤；當環境景氣好，訂單旺的時候，就降低價值活動的涵蓋範圍，發大包給承包商來執行，辛苦費時的整合者利潤讓給承包商，雖然單一工程的整合者利潤降低，但是由於可以承接的工程數目變多了，所以在仲介者利潤的擴大下，獲得利潤的成長。 營造廠的策略彈性，來自於其自身的價值活動調整彈性與承包商網絡的建立與維繫。該價值活動調整的彈性來自於自身能力的強弱與完備性，能力越強越完備的廠商，其價值活動調整的彈性越高；營造廠的能力可以分為整合能力與操作能力兩類，整合能力佳的廠商在價值活動細切給小包商的時候，或者在跨專業工項的承包商間的溝通協調上，會有比較好的績效，如期完成工程，減少成本支出；操作能力好的營造商，除了可以選擇性地決定是否要將專業工項相關的價值活動內製外，增加議價能力外，還可以掌握該相關工項的成本結構，控制成本支出。在承包商網絡的建立與維繫上，多元化承包商網絡的存在，除了可以讓營造廠能夠視工程需要找到合適的承包商外，還可以透過創造群與群間的承包商的相互競爭性，來降低對於單一承包商的依賴程度，也增加了承包商間的選擇彈性。 由於工程設計的差異，工程技術的變遷，營造商必需不斷地透過工程案件的執行，向具夥伴關係的廠商學習特定工項的操作知識與技能，提昇自身的能力，也將該操作知識與技能傳授給具團隊關係的廠商，也帶動整體承包商網絡能力的增長。因而，讓營造廠得以在環境競爭與技術變遷的衝擊下，獲得不斷成長的機會，也創造了與承包商網絡同步成長的機會，而得以避免整體策略彈性喪失的可能性。 最後，不同的網絡關係類型的管理代表著不同的利潤模式的創造思維，營造廠對於會員關係類型的承包商將採取採購成本最小化的模式，之於團隊關係類型的承包商將採取交易成本最小化的模式，夥伴關係類型的承包商則採最大化綜效的模式。 / Duing to the changing of the competitive environment, make the relationship between the manufacturing firm and their suppliers from competitive to cooperative. The manufacturing firm and its suppliers form a cooperative cluster to satisfy the buyer’s requirement. The cooperative network manufacturing firms build become one of the important sources of competitive advantage, therefore it’s a significant issue to the management of the cooperative network. From the practical view, the intensive industrial network organizes by the small and medium size enterprise is the important source of the Taiwan’s manufacturing advantage. The nature of flexibility and speed of Taiwan’s industrial network makes the firms could deal with the fast changing environment, and integrate the available resources of the network to create the unique competitive advantages. The industrial network also play a major role for hundred billion of the foreign exchange reserves in Taiwan, no matter what the traditional industry, such as tailoring, shoes, and machine tool industries or high-tech industry as computer, integrated circuit and electronic industries, the specialization and cooperation between industries is more significant in Taiwan than in other Asia countries, such as in Japan and Korea. Therefore, it’s an important issue to know the manufacturing firms how to build up and maintain their dynamic cooperative network and how to do the job assign and the leakage management among members of network. From the theatrical view, the early researches in the intra-organizational cooperative relationships is focus on the dyadic relationship to explain how the power and trust influence the cooperation, maybe how to gain the competitive advantage based on the relationship further. As we know manufacturing firms will exchange their resources with many suppliers, they always make the strategic decision from the holistic view of the network, not the dyadic view. Miles and Snow (1984) argue that the traditional organization will be disaggregated vertically, the way of integrating all the functions in a single organization will be instead of dividing into many independent firms to execute coordinately. They said that a successful company should integrate and coordinate their network members dynamically to achieve the customer’s need. Recently Bovet and Martha (2000) emphasize the important of building the value creating system to support the customer’s need agilely, the network of value system is different from the production line relationship of traditional supply chain, it start by the customer’s need, the manufacturing firms which interconnected with their suppliers, strategic partners, customers, exchange with the network member to acquire the resources they need, such as economic assets, knowledge, intangible benefits, to satisfy the need of customer (Allee, 2000). This study tries to figure out how the manufacturing firm build up and maintain their network dynamically, how they do the job assignment and linkage management, by case study. The two cases selected from construction industry are suitable to present the dynamic network management, by cooperating the two cases, this study establish the conceptual framework and propositions for the reference of managers.