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| 2. |
- Johansson, Eva, et al.
(författare)
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Evaluation of materials supply systems during product development projects
- 2004
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Ingår i: Proceedings of the Euroma Conference.
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- This paper discusses the process of designing materials supply systems during product development projects with focus on the evaluation part. A case study was conducted in close cooperation with a company within the automotive industry. Two performance measures for the materials supply systems evaluation were selected, namely inventory value and handling required for the materials supply. The result from the case study is an analysis of how these performance measures can be assessed early in product development projects and how they can be used in the process of materials supply systems design.
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| 3. |
- Johansson, Eva, et al.
(författare)
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Evaluation of materials supply systems during product development projects
- 2006
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Ingår i: International Journal of Production Research. - : Informa UK Limited. - 0020-7543 .- 1366-588X. ; 44:5, s. 903-917
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Tidskriftsartikel (refereegranskat)abstract
- The aim of this paper is to analyse how materials supply systems can be evaluated during product development projects in a concurrent engineering context. The focus is on performance assessment of materials supply systems and the input data required. A case study was conducted in close cooperation with a company and two performance measures were assessed during the concept definition phase and recalculated during the product and process validation phase. The results show that preliminary input data can be used to calculate performance measures by means of the following approaches: indicators, standards or scenarios. Furthermore, it is discussed how performance assessment can assist the materials supply systems design process in a concurrent engineering context by facilitating early problem discovery, early decision-making, and common understanding.
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| 5. |
- Johansson, Eva, et al.
(författare)
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Influence of shipment size on logistics costs in the ordering company
- 2000
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Ingår i: Proceedings of the 12th NOFOMA Conference, Aarhus, Denmark.
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Konferensbidrag (refereegranskat)abstract
- This paper shows the great importance of taking transportation costs into account when deciding on the shipment sizes. During the last few decades companies have tried to reduce their shipment sizes, in order to increase their inventory turnover rates. However, the transportation cost is hardly ever included as an explicit parameter in the shipment size decision. The results from a case study show that it is economically advantageous, in the perspective of the model applied, to increase the shipment sizes for many of the suppliers. These results are discussed together with the factors that act for smaller shipment sizes. One of the final conclusions is, however, that if the manufacturing and the materials flow systems were changed in order to take full advantage of smaller shipment sizes and less material in house, it would possibly be profitable to decrease the shipment sizes even more than has hitherto been done.
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| 7. |
- Johansson, Eva, et al.
(författare)
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Materials supply systems design in product development projects
- 2006
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Ingår i: International Journal of Operations & Production Management. - : Emerald. - 0144-3577 .- 1758-6593. ; 26:4, s. 371-393
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Tidskriftsartikel (refereegranskat)abstract
- Purpose: This research aims to develop a model for describing and analysing materials supply systems design in product development projects.Design/methodology/approach: Literature on materials supply and production systems design is reviewed in order to derive a materials supply systems design model. The model is applied to empirical data from a qualitative case study, which exemplifies how the model can serve to describe materials supply systems design in product development projects. Moreover, the model is used to analyse the empirical data related to the focus and characteristics of the design issues.Findings: The model developed contains the six areas: materials feeding, storage, transportation, handling, packaging, and manufacturing planning and control at four levels: supply chain, plant, subunit, and utility.Research limitations/implications: Future research could complement the model by developing a design process to enable systematic design of the materials supply system as well as the integration of materials supply aspects at an early stage of product development projects. Such a design process should also consider the design of the flows of specific components.Practical implications: The importance of considering the relations between the six design areas as well as evaluating the whole materials supply system is highlighted.Originality/value: The paper focuses on the materials supply aspects dealt with in product development projects, which have been the subject of little research interest so far, despite the fact that extensive resources are required for materials supply activities.
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| 8. |
- Johansson, Eva, 1969, et al.
(författare)
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The information gap between design engineering and materials supply system design
- 2003
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Ingår i: Paper presented at The 17th International Conference on Production Research ICPR-17, Blacksburg, Virginia, 2003..
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- This paper focuses on the design of materials supply systems in product development projects. In order to design the materials supply system in parallel with the product, product data have to be made available to the materials supply system designers. The aim of this paper is to discuss the information quality of the product data needed and to indicate how the information quality can be increased. Empirical data have been gathered through case studies conducted within the Manufacturing Industry.The empirical data show many imperfections in the information quality. In order to increase the information quality, the possibilities given by PDM-systems must be utilised. It is also essential that the materials supply system designers are able to claim what product data they need and in what form they need them. In addition, the current status of the product data must be given, i.e. information about how much the data may change.Keywords: Materials supply systems design; Product development project; Concurrent engineering; Information quality; Product data; Product data management system.
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| 9. |
- Johansson, Eva, et al.
(författare)
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The information gap between design engineering and materials supply systems design
- 2003
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Ingår i: Proceedings of the 17th International Conference on Production Research, Blacksburg, USA.
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- This paper focuses on the design of materials supply systems in product development projects. In order to design the materials supply system in parallel with the product, product data must be available to the materials supply systems designers. The aim of this paper is to discuss the information quality of the required product data and to indicate how this information quality can be increased. Empirical data have been gathered through studies conducted within the Manufacturing Industry.The empirical data show many deficiencies related to information quality. In order to improve the information quality, the advantages provided by PDM-systems must be utilised. It is also essential that materials supply systems designers are able to state what product data they need as well as the form of the data. In addition, the current status of the product data must be provided, i.e. information about how much the data may change.
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| 10. |
- Johansson, Eva, et al.
(författare)
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The information gap between design engineering and materials supply systems design
- 2004
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Ingår i: International Journal of Production Research. - : Informa UK Limited. - 0020-7543 .- 1366-588X. ; 42:17, s. 3787-3801
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Tidskriftsartikel (refereegranskat)abstract
- This paper focuses on the design of materials supply systems in product development projects. In order to design the materials supply system in parallel with the product, product data must be available to the materials supply systems designers. The aim of this paper is to analyse the information quality of the required product data and to indicate how this information quality can be increased. Empirical data have been gathered through case studies conducted within the Manufacturing Industry. The empirical data show that it is possible to identify the product data required for materials supply systems design. It is also shown that there is an information gap between design engineering and materials supply systems design. The information quality of the required product data for the materials supply systems design has many imperfections, mainly in terms of accessibility, ease of operation, timeliness, understandability, interpretability, relevancy, and completeness. The information quality can be improved by the use of PDM systems, which are especially useful for facilitating an increase in accessibility, ease of operation, and timeliness.
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