| 1. |
- Alklind Taylor, Anna-Sofia, 1975-, et al.
(författare)
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Guardian Angel : Using Lighting Drones to Improve Traffic Safety, Sense of Security, and Comfort for Cyclists
- 2023
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Ingår i: Lecture Notes in Computer Science. - Cham : Springer. - 9783031480461 - 9783031480478 ; , s. 209-223
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Konferensbidrag (refereegranskat)abstract
- Active mobility, such as biking, faces a common challenge in Swedish municipalities due to the lack of adequate lighting during the dark winter months. Insufficient lighting infrastructure hinders individuals from choosing bicycles, despite the presence of well-maintained bike paths and a willingness to cycle. To address this issue, a project has been undertaken in the Swedish municipality of Skara for an alternative lighting solution using drones. A series of tests have been conducted based on drone prototypes developed for the selected bike paths. Participants were invited to cycle in darkness illuminated by drone lighting and share their mobility preferences and perception. This paper summarizes the users’ perception of drone lighting as an alternative to fixed lighting on bike paths, with a special focus on the impact on travel habits and the perceived sense of security and comfort. Most participants were regular cyclists who cited bad weather, time, and darkness as significant factors that deterred them from using bicycles more frequently, reducing their sense of security. With drone lighting, the participants appreciated the illumination’s moonlight-like quality and its ability to enhance their sense of security by illuminating the surroundings. On the technology side, they gave feedback on reducing the drone’s sound and addressing lighting stability issues. In summary, the test results showcase the potential of drone lighting as a viable alternative to traditional fixed lighting infrastructure, offering improved traffic safety, sense of security, and comfort. The results show the feasibility and effectiveness of this innovative approach, supporting transformation towards active and sustainable mobility, particularly in regions facing lighting challenges.
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| 2. |
- Asplund, Anna, et al.
(författare)
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E-procurement beyond the buyer cost perspective
- 2010
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Ingår i: Proceedings of the 22nd NOFOMA Conference. - Kolding : University of Southern Denmark. - 9788792471055 ; , s. 483-498
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Konferensbidrag (refereegranskat)abstract
- Purpose: The objective of this paper is to provide and argue for a comprehensive view of e-procurement that involves both the buyer and suppliers and that goes beyond looking at mere cost reductions on the buyer side. More specifically, the paper describes benefits and barriers of implementing e-procurement solutions for both buyers and suppliers.Design/methodology/approach: This paper reports on a literature review combined with a case study. The case is a public organization in Sweden, which prepares to implement an e-procurement solution. Interviews were also conducted with a selection of suppliers to the case organization.Findings: In e-procurement literature, drivers and barriers are often viewed only from the perspective of a buying organization. Benefits are mainly cost-related for the buying organization, while barriers often include suppliers. It is proposed that benefits and barriers should include both buyers and suppliers. The literature review and the case study findings form the basis for further investigation into this problem area.Research limitations/implications: This study focuses on a public organization in Sweden. Yet, it could have implications for many public or private organizations considering implementing e-procurement systems.Practical implications: This research suggest that organizations to a greater extent should take the supplier´s side into account when implementing e-procurement solutions.Originality/Value: The study highlights a full cycle view on e-procurement taking both buyer and supplier into account.
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| 3. |
- Claesson, Frida, et al.
(författare)
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In-transit distribution as a strategy in a global distribution system
- 2011
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Ingår i: International Journal of Shipping and Transport Logistics. - : InderScience Publishers. - 1756-6517 .- 1756-6525. ; 3:2, s. 198-209
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Tidskriftsartikel (refereegranskat)abstract
- Distribution has become a key factor in today's logistics system due to companies' desires to achieve considerable economies of scale in production, achieved by focused factories, as well as customers' demands for shorter lead-times and customer adapted products. The purpose of this research is to investigate if the in-transit distribution strategy may offer companies a competitive advantage and may be used as a complement to the centralised distribution strategy and/or the decentralised distribution strategy. This study shows that the in-transit distribution strategy can give major competitive advantages by offering rather short lead-times for customers without having to store products locally in warehouses. This, in turn, gives lower warehousing costs, lower tied-up capital, a less interrupted manufacturing, and steady and continuous production volumes. In order to be successful with this strategy, it takes good planning, working closely with customers, good market knowledge, and an enterprise resource planning (ERP) system that is able to support the strategy sufficiently. Among these factors, low variation in demand as well as manufacturing output is required, and furthermore distribution lead time needs to be predictable.
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| 4. |
- Claesson, Frida, et al.
(författare)
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Supply Chain Planning in Automotive Sector : Swedish Case Study
- 2011
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Ingår i: Conradi Research Review. - : Vaasa University of Applied Sciences. - 1459-0980. ; 6:2, s. 33-54
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Tidskriftsartikel (refereegranskat)abstract
- This research aims to enhance the current level of knowledge from supply chain planning (SCP) by analyzing the importance of collaboration, information exchange and a supporting information system in its successful execution. These are examined through a case study from international manufacturing company, which operates in automotive industry with its global manufacturing network. Research reveals that collaboration is a complex and important issue of SCP, and occurs simultaneously in vertical and horizontal dimensions. It is important to select strategic partners and to develop a structured work processes and routines. The main objective of collaboration is to determine common goals and objectives and to facilitate the exchange of information; these together drive the performance of a supply chain higher. A sufficient information system supporting the SCP is vital to facilitate collaboration, and information exchange between the different supply chain participants. However, currently in the case company quite many phases of SCP are completed without appropriate and integrated information systems and the process itself contains several manual phases.
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| 5. |
- Eriksson, David, et al.
(författare)
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The importance of the retailer for an OEM developing innovative products
- 2011
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Ingår i: Conradi Research Review. - : Vaasa University of Applied Sciences. - 1459-0980. ; 6:2, s. 63-81
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Tidskriftsartikel (refereegranskat)abstract
- The supply chain strategy research has generated many frameworks for matching the supply chain with the nature of demand, market, consumers, or products. Recently many companies have implemented innovative new product development processes in order to increase revenue. However, research on the importance of the retailers for an original equipment manufacturer (OEM) adopting a leagile supply chain strategy for innovative products, is scarce. Using the case study method, this research investigates the need of collaboration between an OEM and its retailers. This research aims to richen the knowledge about demand supply chain management (DSCM), and the coordination of demand and supply processes between companies in the demand-supply chain. This research shows that there are several measures that may be used to monitor performance, and that collaboration is important for the case company.
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| 6. |
- Eriksson, David, et al.
(författare)
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The Role of Consumer Insight in New Product Development and Its Impact on Supply Chain Management : A Swedish Case Study
- 2010
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Ingår i: Innovative Process Optimization Methods in Logistics. - Berlin : Erich Schmidt Verlag. - 9783503126835 - 350312683X ; , s. 113-126
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Konferensbidrag (refereegranskat)abstract
- This paper seeks to explore how a profound consumer understanding may influence the early stages of a new product development (NPD) process. The issue is examined through a qualitative single case study combined with a literature review. The case study shows how the NPD process is structured and executed in a Swedish furniture company as well as the role consumer insight plays in that process. Empirical data have been collected mainly from in-depth interviews with persons representing senior and middle management in the case company. The research reveals that consumer oriented, cross-functional NPD in the case company has a strong impact on internal collaboration, and aligns the goals between different departments and functions within the company. Despite inefficiencies on departmental level, effectiveness on company level is achieved. Early indications show an expected growth in contribution margins by 8 percentage.
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| 7. |
- Hedenstierna, Philip, et al.
(författare)
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An Integrative Approach To Inventory Control
- 2009
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Ingår i: Rapid Modelling for Increasing Competitiveness. - London : Springer London. - 9781848827479 - 9781848827486 ; , s. 105-118
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Bokkapitel (övrigt vetenskapligt/konstnärligt)abstract
- Inventory control systems consist of three types of methods: forecasting, safety stock sizing and order timing and sizing. These are all part of the interpretation of a planning environment to generate replenishment orders, and may consequently affect the performance of a system. It is therefore essential to integrate these aspects into a complete inventory control process, to be able to evaluate different methods for certain environments as well as for predicting the overall performance of a system. In this research a framework of an integrated inventory control process has been developed, covering all relations from planning environment to performance measures. Based on this framework a simulation model has been constructed; the objective is to show how integrated inventory control systems perform in comparison to theoretical predictions as well as to show the benefits of using an integrated inventory control process when evaluating the appropriateness of inventory control solutions. Results indicate that only simple applications (for instance without forecasts or seasonality) correspond to theoretical cost and service level calculations, while more complex models (forecasts and changing demand patterns) show the need for tight synchronization between forecasts and reordering methods. As the framework describes all relations that affect performance, it simplifies the construction of simulation models and makes them accurate. Another benefit of the framework is that it may be used to transfer simulation models to real-world applications, or vice versa, without loss of functionality.
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| 8. |
- Hedenstierna, Philip, et al.
(författare)
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Design of a Framework for Inventory Control - Evaluation of Forecasting and Inventory Control Systems
- 2009
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Ingår i: Flexible Automation and Intelligent Manufacturing 2009 (FAIM 2009). - Middlesbrough, UK : Curran Associates, Inc.. - 9780956230331 - 9781615676279 ; , s. 573-580
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Konferensbidrag (refereegranskat)abstract
- Managing inventories so that overall costs are kept low, while service levels are maintained is the central issue of inventory control, which only regulates two things: the size and the timing of orders. This is typically executed through a planning method, such as the reorder point system or, less frequently, the periodic order quantity system. These take into account a forecast, supposed to gauge the average future demand, and a predetermined safety stock, buffering against forecast errors and demand uncertainty. Pure demand also influences the system, as transactions affect the inventory level. It is crucial to understand how a complete system of demand, forecasts, safety stock calculations and planning methods work together to measure service level and overall cost of the system. This paper outlines a framework for the unambiguous representation of the relations between methods that interpret environmental parameters to plan orders. A number of simulations based on the framework are run to show, how the integration of the inventory control functions may affect the overall performance of the system. The usefullness of the framework lies in its ability to make a system duplicable (i.e. to transfer an inventory control system to a simulation model, or vice versa). Not only is this property important for creating simulation models that exactly depict the system being analysed, it also enables the study of a complete system for order planning, as opposed to optimising individual methods. Studying an inclusive system allow the same metrics to be used to evaluate changes to any method in the system. Another benefit of this approach is that the system's metrics directly reflect changes in the environment. Simulations based on this framework are precise and substantially easier to evaluate than models not adhering to any standard.
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| 9. |
- Hilletofth, Per, et al.
(författare)
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Agent-based decision support for maintenance service provider
- 2010
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Ingår i: International Journal of Services Sciences. - : Inderscience Enterprises Ltd.. - 1753-1446 .- 1753-1454. ; 3:2/3, s. 194-215
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Tidskriftsartikel (refereegranskat)abstract
- Operations performed by a maintenance service provider (MSP) can include the entire maintenance function or select activities; these need to be well-balanced in terms of utilisation rate of own resources, maintenance cost incurred and the uptime of the customers’ production systems. MSPs face challenges due to the task of planning several non-associated plants and with a frequent lack of reliable information. In this research work, an agent-based decision support system of service-related maintenance has been developed. Research shows that this approach can improve the understanding of the problem domain and also generate a basis for decision-making and structural changes.
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| 10. |
- Hilletofth, Per, et al.
(författare)
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Agent Based Decision Support in Manufacturing Supply Chain
- 2009
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Ingår i: Agent and Multi-Agent Systems: Technologies and Applications. - Berlin, Heidelberg : Springer Berlin/Heidelberg. - 3642016642 - 9783642016646 - 9783642016653 ; , s. 677-686
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- Supply Chain Management (SCM) is becoming increasingly complex and an intensified competition in the end-markets has started to create a situation where co-operation requirements between companies in a Supply Chain (SC) are increasing. The old mechanistic operations management solutions are becoming obsolete and advanced decision support is increasingly needed to realize efficient and effective management of complex SCs. The objective of this research is to contribute to the understanding of how Agent Based Modeling (ABM) can advance decision making and to discuss why ABM should be regarded as method to realize Information Fusion (IF). In this research work an agent based model of SCM has been implemented in a simulation platform to provide an approach for evaluation of decision and management alternatives. Research shows that this kind of decision support system is based on IF, since it collects and fuses information from different sources into a situation image that provides effective support for human decision making
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