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  • 1.
    Olhager, Jan
    et al.
    Linköping University, The Institute of Technology. Linköping University, Department of Production Economics.
    Selldin, Erik
    Linköping University, The Institute of Technology. Linköping University, Department of Production Economics.
    Enterprise resource planning survey of Swedish manufacturing firms2003In: European Journal of Operational Research, ISSN 0377-2217, E-ISSN 1872-6860, Vol. 146, no 2, p. 365-373Article in journal (Refereed)
    Abstract [en]

    Enterprise resource planning (ERP) systems are the new type of information systems for enterprise integration. By adding functionality to previous manufacturing resource planning systems, the aim is to integrate functions and processes within a manufacturing firm. In this paper, we present a survey of ERP implementation in Swedish manufacturing firms, concerned with ERP system penetration, the pre-implementation process, implementation experience, ERP system configuration, benefits, and future directions. ⌐ 2002 Elsevier Science B.V. All rights reserved.

  • 2.
    Olhager, Jan
    et al.
    Linköping University, The Institute of Technology. Linköping University, Department of Management and Engineering.
    Selldin, Erik
    Linköping University, The Institute of Technology. Linköping University, Department of Management and Engineering.
    Manufacturing planning and control approaches: market alignment and performance2007In: International Journal of Production Research, ISSN 0020-7543, E-ISSN 1366-588X, Vol. 45, no 6, p. 1469-1484Article in journal (Refereed)
    Abstract [en]

    The design of manufacturing planning and control (MPC) systems is a strategic decision for manufacturing operations. In this paper we analyze the interrelationships between the choice of MPC approaches at different hierarchical levels with market requirements and operational performance. These relationships are explored through an extensive survey comprising responses from 128 manufacturing firms. The results show that the choice of MPC approaches, primarily at the sales and operations planning and master scheduling levels, has a significant mediating role in improving performance. The alignment between market requirements and the choice of MPC approaches is significant and has a significant impact on performance. In a dynamic environment, the choice of MPC approaches is shown to have a positive mediating effect on operational performance.

  • 3.
    Olhager, Jan
    et al.
    Linköping University, The Institute of Technology. Linköping University, Department of Management and Engineering.
    Selldin, Erik
    Linköping University, The Institute of Technology. Linköping University, Department of Management and Engineering.
    Strategic choice of manufacturing planning and control approaches: empirical analysis of drivers and performance2007In: Advances in Production Management Systems / [ed] Jan Olhager, Fredrik Persson, New York: Springer , 2007, p. 35-42Conference paper (Refereed)
    Abstract [en]

        

    The design of manufacturing planning and control systems is a strategic decision for manufacturing firms. In this paper we analyze the interrelationships among the choices of planning and control approaches at different hierarchical levels, including sales and operations planning (chase; level), master scheduling (make-to-order; assemble-to-order; make-to-stock), material planning (time-phased; rate-based), and production activity control (MRP-type; JIT-type). We test the relationships with product characteristics and performance. These relationships are explored through a survey of 128 manufacturing plants.

    The results show that choice of approaches at the two higher planning and control levels, i.e. sales and operations planning and master scheduling, are strongly interrelated. The choices at the two lower hierarchical levels, i.e. material planning and production activity control, are also strongly interrelated. However, the link between any of the two upper and any of the two lower levels is much weaker. The most significant drivers of the choice of planning and control approach are: (i) product volume and delivery lead time for sales and operations planning, (ii) product variants and delivery lead time for master scheduling, and (iii) production lead time for production activity control, while material planning is not significantly related with any product characteristic. Significant effects on performance are found for sales and operations planning on volume flexibility, master scheduling on product mix flexibility, and material planning and production activity control approaches on delivery speed. This research supports the notion that sales and operations planning is concerned with volume planning and that master scheduling is concerned with mix planning.

  • 4.
    Olhager, Jan
    et al.
    Linköping University, Department of Production Economics.
    Selldin, Erik
    Linköping University, Department of Production Economics.
    Supply chain management survey of Swedish manufacturing firms2004In: International Journal of Production Economics, ISSN 0925-5273, E-ISSN 1873-7579, Vol. 89, no 3, p. 353-361Article in journal (Refereed)
    Abstract [en]

    Supply chain management practices and principles are evolving and changing rapidly, e.g. through modern information and communication technologies. These changes affect the ways supply chains are designed, the way they are managed, and how planning and control activities take place within these chains. But how far have companies come in dealing with supply chain issues? This paper investigates supply chain management strategies and practices in a sample of 128 Swedish manufacturing firms. We specifically study issues related to the supply chain design, integration, planning and control, and communication tools for managing supply chains. The main findings indicate the following. The extent to which suppliers and customers are involved in supply chain planning and control is expected to increase steadily over the next 2 years. The primary priority for the selection of supply chain partners is quality performance. However, delivery dependability, cost efficiency, volume flexibility, and delivery speed are also judged to be important inputs to the supply chain partner selection process. Today, companies expect to broaden and deepen the use of new information and communication technologies for improving supply chain operations. Our findings concerning future supply chain management practices, principles and priorities are discussed.

  • 5.
    Olhager, Jan
    et al.
    Linköping University, The Institute of Technology. Linköping University, Department of Management and Engineering, Production Economics .
    Selldin, Erik
    Linköping University, The Institute of Technology. Linköping University, Department of Management and Engineering, Production Economics .
    Wikner, Joakim
    Linköping University, The Institute of Technology. Linköping University, Department of Production Economics.
    Decoupling the value chain2006In: International Journal of Value Chain Management, ISSN 1741-5357, Vol. 1, no 1, p. 19-32Article in journal (Refereed)
    Abstract [en]

    All value chains are not designed the same way. A major determinant is the type of product that is to be supplied through the chain or network, calling for different types of value chains. An interesting model for this selection is the one developed by Fisher, arguing that products can be characterised as being either functional or innovative, and that supply chains are either physically efficient or market-responsive. Certain combinations of products and supply chains are assumed to provide matches whereas other combinations lead to mismatches. This paper combines this approach with the concept of a customer order decoupling point. We distinguish between a product supply decoupling point and a demand mediation decoupling point. A decoupling point divides the value chain into two distinct parts, one upstream with certain characteristics and one downstream with distinctly different characteristics. In this paper we specifically explore how the Fisher model can be used to characterise the role and features of upstream versus downstream value chain operations relative to the product supply decoupling point and the demand mediation decoupling point. Copyright © 2006 Inderscience Enterprises Ltd.

  • 6.
    Selldin, Erik
    Linköping University, Department of Production Economics. Linköping University, The Institute of Technology.
    Enterprise and supply chain planning: a survey of Swedish manufacturing firms2002Licentiate thesis, comprehensive summary (Other academic)
    Abstract [en]

    Enterprise and supply chain planning (ERP and SCP) have evolved due to the earlier benefits of manufacturing planning systems. By integrating the entire enterprise, or a part of a supply chain, the benefits sought are hopefully even greater in terms of reduced costs and increased profits in comparison with systems only managing a part of the operations. Swedish manufacturing companies are no exceptions and this research aims at investigating enterprise and supply chain planning within those firms. A descriptive study of the current situation concerning implementation and the experiences of such planning systems in both enterprise and supply chain environments is presented. Further, two explorative studies in the field of supply chain integration and supply chain design are presented. These studies examine the impact on company performance by different planning and supply chain strategies.

  • 7.
    Selldin, Erik
    Linköping University, Department of Production Economics.
    Supply chain frontier: achieving excellence in efficiency and responsiveness2004In: EurOMA 2004, Operations Management as a Change Agent,2004, Fontainebleau, Frankrike: INSEAD , 2004, p. 537-Conference paper (Refereed)
    Abstract [en]

    Design of supply chains has gained increased interest over the last years. Academics and practitioners are suggesting several different frameworks. According to Marshall L. Fisher, all supply chains have two main functions, the physical transportation of goods and the mediation of market information. Fisher suggests that a supply chain can only achieve excellence in one of the two functions. This study investigates to which extent companies have achieved high levels of efficiency and of responsiveness in their supply chains. By comparing the results from a broad sample of companies, the existence of supply chains that are efficient and responsive at the same time are studied. For each company, the supply chain for their main product is investigated. Performance of the companies in terms of financial and non-financial measures is compared to the degree of efficiency and responsiveness of the supply chain.

  • 8.
    Selldin, Erik
    et al.
    Linköping University, The Institute of Technology. Linköping University, Department of Management and Engineering, Production Economics .
    Olhager, Jan
    Linköping University, The Institute of Technology. Linköping University, Department of Management and Engineering, Production Economics .
    Linking products with supply chains: Testing Fisher's model2007In: Supply chain management, ISSN 1359-8546, E-ISSN 1758-6852, Vol. 12, no 1, p. 42-51Article in journal (Refereed)
    Abstract [en]

    Purpose - The paper seeks to test the relationships among product design and supply chain design, with specific reference to the product-supply chain model by Fisher. Design/methodology/approach - An extensive empirical survey with data from 128 companies, the approach is basically theory testing, in that it investigates an existing framework, and discusses extensions. Findings - Significant relationships are found between product types and supply chain types, as well as concerning the impact of alignment on performance. Research limitations/implications - Instead of treating the supply chain characteristics associated with different supply chain types as either/or choices, some companies select properties from both supply chain types in order to gain additional benefits. This creates a supply chain frontier of physical efficiency and market responsiveness, a concept that deserves further attention by researchers. A limitation is that it would be interesting to perform a longitudinal study. Practical implications - Different product types call for different types of supply chains. Alignment between the type of product and the type of supply chain is important, and significant for delivery speed, delivery dependability, and cost performance. Originality/value - This research empirically tests a model that has received considerable attention in the research literature as well as acting as guidelines in practice, but that has not been tested explicitly before. © Emerald Group Publishing Limited.

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