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Träfflista för sökning "AMNE:(SOCIAL SCIENCES Business and economics) ;lar1:(cth);pers:(Stefansson Gunnar 1963)"

Sökning: AMNE:(SOCIAL SCIENCES Business and economics) > Chalmers tekniska högskola > Stefansson Gunnar 1963

  • Resultat 1-10 av 14
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1.
  • Almotairi, Badi, 1970, et al. (författare)
  • MANAGING SUPPLY CHAIN INTERFACES A framework towards an integrated logistics platform
  • 2011
  • Ingår i: Proceedings of Nofoma conference, 2011, Harstad, Norway.
  • Konferensbidrag (refereegranskat)abstract
    • Purpose of this paper -The purpose of this paper is to explore current interfaces between major member-firms in port organisations and to develop a framework to integrate these member-firms through better management of interfaces.Design/methodology/approach -To prepare this paper, a structured literature review was conducted together with multi-case studies. To analyse the data, a theoretical interface model was used as a basis to define and describe different natures of interfaces. This enabled the development of a framework towards an integrated logistics platform.Findings -The research shows that successful companies will be those that are able to manage supply chain interfaces efficiently. These interfaces revealed by the study are: media, transfer, data and information, control and communication, and user interfaces. The framework demonstrates these types of interfaces and helps facilitate better integration between ports’ member-firms in supply chains.Practical implications (if applicable) - The paper provides a framework for understanding current interfaces between major member-firms in port organisations and may be a useful insight for firms wishing to enhance supply chain integration.What is original/value of paper -The idea behind the study is to contribute to a better understanding of integration issues within the maritime supply chain through a structured literature review and multi-case studies that lead to better management of supply chain interfaces.
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2.
  • Jacobsson, Stefan, 1975, et al. (författare)
  • Automatic information exchange between interoperable information systems: Potential improvement of access management in a seaport terminal
  • 2020
  • Ingår i: Research in Transportation Business and Management. - : Elsevier BV. - 2210-5395. ; 35
  • Tidskriftsartikel (refereegranskat)abstract
    • The purpose of this paper is to explore how and when the most beneficial and cost effective information attributes can be automatically exchanged between interoperable information systems of a seaport terminal operator, a road haulier, and a rail operator to potentially improve their access management. The automatically exchange of the attributes is dependent on interoperability between information systems of the involved actors. The interoperability is achieved through a developed application programming interface in this study. This case study adds to prior research by developing a cost-benefits analysis that categorises the attributes (from low cost / low benefit to high cost / high benefit) involving four strategies: data farming, dedicated information exchange, opportunistic information exchange, and avoiding information exchange. These four strategies are important in identifying when to collect the information attributes automatically to facilitate real-time decision-making and in turn potentially improve the access management for the involved actors. is developed in this case study to enable interoperability between the information systems of involved actors. As a change management tool, the cost-benefit analysis can also be used to identify and support transformation of attributes from one category to another. The empirical study included nine workshops resulting in the identification of the most beneficial and cost effective information attributes: deviation information, direction, driver ID, estimated time of arrival, goods priority information, intermodal transport unit (ITU) ID, ITU status, opening hours, shipment ID, and vehicle ID. The attributes must be automatically exchanged according to three identified time phases: one week before, one day before, and two hours before the ITUs are to be picked up at the terminal. By exchanging these attributes between the interoperable actors´ information systems, there is potential for reducing the actors´ turnaround times, increasing their access reliability, access precision, and access flexibility. Finally, two propositions are formulated from the empirical findings and in relation to prior research results.
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3.
  • Elliot, Viktor, et al. (författare)
  • CEOs’ understanding of blockchain technology and its adoption in export-oriented companies in West Sweden: a survey
  • 2021
  • Ingår i: Journal of Global Operations and Strategic Sourcing. - 2398-5364.
  • Tidskriftsartikel (refereegranskat)abstract
    • Purpose – The purpose of this paper is to study current practices in adopting blockchain technology amongst export companies in West Sweden and to capture their CEOs’ knowledge of and attitudes towards blockchains. Design/methodology/approach – Factors enabling or hindering the adoption of blockchains were identified from a comprehensive literature review and a survey of 72 chief executive officers (CEOs) of exportoriented firms in West Sweden, all with turnovers exceeding e2m, regarding their knowledge of and attitudes towards blockchains. Findings – Blockchain technology is not currently perceived to provide benefits that would outweigh the costs of introducing it into West Sweden’s export firms. Nevertheless, the findings suggest that such technology, though currently too immature to meet today’s industrial requirements, could experience more widespread use if certain key factors (i.e. lower cost, traceability, improved security or trustworthiness and new blockchain-enabled business models) are prioritised. Research limitations/implications – Answered by 72 CEOs, the survey achieved a response rate of 6%, meaning that the findings are only exploratory. Even so, they offer new insights into CEOs’ attitudes towards blockchain technology. Practical implications – The CEOs reported comparatively limited knowledge of and experience with implementing blockchains, the lack of which has hampered their large-scale implementation in multi-actor supply chains. Social implications – Negative sentiment amongst CEOs towards blockchain technology may lower onthe-job satisfaction amongst tech personnel aspiring to develop and implement blockchain applications in their firms. Originality/value – Knowledge of and attitudes towards blockchain technology amongst top-level managers, as well as about factors enabling or hindering its adoption, guide managers in crafting strategies for implementing blockchains in their organisations and maximising the benefits therein. Unlike past studies focussing on technological aspects or views of experts and middle-management, the study was designed to capture the views of CEOs.
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4.
  • Stefansson, Gunnar, 1963, et al. (författare)
  • Guest editorial
  • 2021
  • Ingår i: International Journal of Physical Distribution and Logistics Management. - 0960-0035. ; 51:9, s. 933-936
  • Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
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5.
  • Lumsden, Kenth, 1944, et al. (författare)
  • Smart freight to enhance efficient and sustainable distribution
  • 2008
  • Ingår i: Proceedings from ITS Europe 2008.
  • Konferensbidrag (refereegranskat)abstract
    • Information systems are mostly based on a centralized concept creating situations in the supply chain associated with a number of vertical transactions to the central information system. A major problem is linking the product information to complex supply chain activities. A solution for improving the management of items is to decentralize the information of individual products and access the relevant information directly from a carry-on information tag based on identification technologies (e.g. RFID). Distributing data needed along the goods flow in a supply chain, opens up for local decision making. In the decentralized system each system interaction point is attached to logic needed in order to handle the goods at that point. In order to make this scenario possible the goods must operate in communication with other intelligent parts and intelligent infrastructure. The goods also need to be able to interact with the appropriate resources performing value adding. In order to perform such decisions all relevant transactional intelligence needs to be brought down all the way to the execution level. In this project we identify, outline and create solutions that make goods and consignments in a perceived way smart. The technical solutions for connectivity between goods are created from a logistics point of view. In this context smart means an IT and transportation environment where local decision making for supply chains is enabled.
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6.
  • Stefansson, Gunnar, 1963, et al. (författare)
  • Performance Issues of Smart Transportation Management
  • 2009
  • Ingår i: International Journal of Productivity and Performance Management. - 1741-0401. ; 58:1, s. 55-70
  • Tidskriftsartikel (refereegranskat)abstract
    • The purpose of this paper is to use the conceptual model of the Smart TransportationManagement (STM) system and analyze how the included factors change the performance ofdistribution activities and what management issues are at stake.To prepare the paper, a literature study was made and casestudies carried out in companies and organizations that are included in advanced transportation setups,including infrastructure providers, carriers, truck manufacturers, software providers, shippers, and more.The main finding of the study is a model that includes three major components of smarttransportation management, namely, smart goods, smart vehicles and smart infrastructure. Thesecomponents embrace some factors that have effects on supply chain performance; however, todifferent extents.The paper uses a framework for the smart transportationmanagement system that is useful when studying advanced transportation management systems, thefunctions that need to be supported and what factors have effects on supply chain performance.Practical implications – Practical implications are mainly based on the structure of the smarttransportation system that is used and the identified factors that affect the performance of the supplychain, as these factors can be influenced by logistics management.The framework used in this research is a new development that collects advanced functions of goods identification, vehicle information systems and infrastructure systemsinto one conceptual model for smart
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7.
  • Stefansson, Gunnar, 1963, et al. (författare)
  • Supply Chain Interfaces: Defining Attributes and Attribute Values for Collaborative Logistics Management
  • 2008
  • Ingår i: Journal of Business Logistics. - : Wiley. - 2158-1592 .- 0735-3766. ; 29:1, s. 347-359
  • Tidskriftsartikel (refereegranskat)abstract
    • Supply chain interfaces are areas where information or physical goods are exchanged between one trading partner and another – where trading partners “interface” with one another to achieve the successful transfer of goods or information. Interfaces, by their very nature, tend to be unique for each trading partner dyad, i.e, what works for one dyad may not work for another depending on the nature of the goods and information being exchanged. Collaborative logistics management (CLM) is one area where interfaces play a key role in achieving success because of the inter-enterprise nature of the processes required for execution.In the logistics arena, and in CLM specifically, three important players in managing supply chain interfaces, and the players studied in this work, are: (1) transportation carriers, (2) logistics service providers (LSPs), and (3) logistics service intermediaries (LSIs). It is the processes of exchanging information and goods among these three players and a buyer-seller trading partner dyad that are the context of this work. Understanding these processes has become more and more important as the trend toward outsourcing transportation and logistics services has strengthened. While outsourcing transportation and logistics services provides opportunity to buyers and sellers to move their information and goods more effectively and efficiently, it also adds complexity and potential bottleneck areas to the flow of materials and information. Not surprisingly, the bottlenecks tend to be at the interfaces – the areas of “exchange” of either information or goods.In this work we focus on understanding: (1) What interfaces exist? and (2) How can we describe the interfaces so that trading partners can begin to understand one another and build collaborative arrangements to improve supply chain performance? In the balance of this paper we present literature relevant to supply chain interfaces, describe our grounded theory approach to the work, present the results, provide insights for managers, summarize our findings, and discuss limitations and future research.
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8.
  • Stefansson, Gunnar, 1963, et al. (författare)
  • The Essentials of Smart Transportation Management
  • 2008
  • Ingår i: Beyond Business Logistics, Proceedings from NOFOMA 2008, June 5-6. - 9789519805092 ; 1:1, s. 567-582
  • Konferensbidrag (refereegranskat)abstract
    • The purpose of this paper is to develop a conceptual model of the smart transportation management system and suggest the essentials of such a system, what components are necessary to get such a system running effectively and what management issues are at stake. To prepare the paper, a literature study was made and case studies carried out in companies and organizations that are included in advanced transportation setups including infrastructure providers, carriers, truck manufacturers, software providers, shippers, and more.The main findings of the study is a model that suggests three major components of smart transportation management, namely smart goods, smart vehicles and finally smart infrastructure. The functional requirements of each component are developed and described. The paper suggests a framework for smart transportation management that are useful when studying more advanced transportation management systems, the functions that need to be supported and the technology that need to be supported.
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9.
  • Almotairi, Badi, 1970, et al. (författare)
  • Information Flows Supporting Hinterland Transport: Applications in Sweden
  • 2010
  • Ingår i: Dryport Conference, Edinburgh, 21-22 October.
  • Konferensbidrag (refereegranskat)abstract
    • This article analyses how information and communication technology (ICT) is used to support hinterland transport of maritime containers. The focus is on how information is conveyed between actors using an ICT facility structure and how integrative information is used by different partners’ information systems for making the different transport operations more efficient and enabling an improved service offer. The analysis includes identification of the actor network and the management components in line with supply chain management (SCM) perspectives. To support this analysis a conceptual model showing the relationship between the integrative information and integrative technology was constructed and related to business process and an ICT maturity model found in the literature. Interviews have been conducted with actors involved in Swedish hinterland rail transport. The information flows have been mapped and the analysis shows that the current level of integration and ICT maturity is fairly low, but that several actors currently are modernising their systems. Their main motivation is to reduce the administrative tasks, rather than achieving a supply chain integration. The article shows that a proper handling of the information flow opens up for new business models and can make existing models more efficient. The ICT system must support the proper integration of the ocean, seaport and hinterland parts of the transport chain as well as auxiliary services.
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10.
  • Almotairi, Badi, 1970, et al. (författare)
  • Information flows supporting hinterland transportation by rail: Applications in Sweden
  • 2011
  • Ingår i: Research in Transportation Economics. - : Elsevier BV. - 0739-8859. ; 33:1, s. 15-24
  • Tidskriftsartikel (refereegranskat)abstract
    • This article analyses how information and communication technology (ICT) is used to support the hinterland transport of maritime containers. It focuses on the way information is conveyed between actors using an ICT facility structure, and how integrative information is used by different partners’ information systems to make different transport operations more efficient and to offer improved service. The analysis includes the identification of the actor network and the management components in line with supply chain management perspectives. To support this analysis, a conceptual model showing the relationship between integrative information and integrative technology was constructed and related to business processes and an ICT maturity model found in the literature. Interviews were conducted with actors involved in Swedish hinterland rail transport. The information flows were mapped and the analysis shows that while the current level of integration and ICT maturity is fairly low, several actors are currently modernising their systems. Their main motivation is to reduce the administrative task load, and at the same time achieve better supply chain integration. The actors are focused on their own tasks and do not see the advantages of advanced integration of the information flows. The risk is identified that the IT level is increasing faster than business integration processes between the companies, which might lead to inefficiencies.
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