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- Alexandersson, Ruben, 1975, et al.
(författare)
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Implementing Fault Tolerance Using Aspect Oriented Programming
- 2007
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Ingår i: Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). - 1611-3349 .- 0302-9743. - 9783540752936 ; 4746/2007, s. 57-74
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Konferensbidrag (refereegranskat)abstract
- Aspect oriented programming (AOP) is a promising technique for implementing fault tolerance. Still there exist few actual implementations. One reason is that most present day AOP languages do not offer the level of control needed. This paper addresses the problem by defining a representative set of fault tolerance mechanisms. The set can be used for evaluating the feasibility of languages and for finding needs for improvements. It has been used to evaluate the AspectC++ language, and a number of limitations have been revealed. AspectC++ was then extended in order to address this. It is also demonstrated how reusable fault tolerance mechanisms can be built using aspect oriented C++, and the advantages compared to using standard C++ are discussed.
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- Andersson, Mathias H, 1976-, et al.
(författare)
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Swimming Behavior of Roach (Rutilus rutilus) and Three-spined Stickleback (Gasterosteus aculeatus) in Response to Wind Power Noise and Single-tone Frequencies
- 2007
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Ingår i: Ambio. - 0044-7447 .- 1654-7209. ; 36:8, s. 636-638
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Tidskriftsartikel (refereegranskat)abstract
- Human-induced underwater noise is drastically increasing as the result of offshore installations and human activities in the marine environment. Many of these structures and activities produce low-frequency noise that could potentially disturb or have harmful effects on several species of teleost fishes. Within the next decade, thousands of wind turbines will be in use in coastal and offshore waters and there is increasing concern on how they may influence marine life. The aims of this study were to examine how swimming behavior of roach (Rutilus rutilus) and three-spined stickleback (Gasterosteus aculeatus) were influenced by single-frequency sounds and noise generated by an offshore wind turbine, and the function of sound pressure level.
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- Ivarsson, Martin, 1980, et al.
(författare)
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A Practitioners Guide to Light Weight Software Process Assessment and Improvement Planning
- 2007
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Ingår i: Journal of Systems and Software. - New York : Elsevier BV. - 0164-1212. ; 81:6, s. 972-995
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Tidskriftsartikel (refereegranskat)abstract
- Software process improvement (SPI) is challenging, particularly for small and medium sized enterprises. Most existing SPI frameworks are either too expensive to deploy, or do not take an organizations’ specific needs into consideration. There is a need for light weight SPI frameworks that enable practitioners to base improvement efforts on the issues that are the most critical for the specific organization.This paper presents a step-by-step guide to process assessment and improvement planning using improvement framework utilizing light weight assessment and improvement planning (iFLAP), aimed at practitioners undertaking SPI initiatives. In addition to the guide itself the industrial application of iFLAP is shown through two industrial cases. iFLAP is a packaged improvement framework, containing both assessment and improvement planning capabilities, explicitly developed to be light weight in nature. Assessment is performed by eliciting improvements issues based on the organization’s experience and knowledge. The findings are validated through triangulation utilizing multiple data sources. iFLAP actively involves practitioners in prioritizing improvement issues and identifying dependencies between them in order to package improvements, and thus establish a, for the organization, realistic improvement plan. The two cases of iFLAP application in industry are presented together with lessons learned in order to exemplify actual use of the framework as well as challenges encountered.
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- Magazinovic, Ana, 1979, et al.
(författare)
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Software Cost Estimation Inhibitors - A Case Study
- 2008
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Ingår i: Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). - Berlin, Heidelberg : Springer Berlin Heidelberg. - 1611-3349 .- 0302-9743. - 3540695648 ; 5089 LNCS, s. 61-74
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Konferensbidrag (refereegranskat)abstract
- Abstract. Software cost estimation errors are increasing in the automotive industry along with the number of software components in modern vehicles. As the software cost estimation is an important and problematic part of project planning there is a need of process improvement to decrease estimation errors. However, to improve the process of cost estimation there is a need to explore whether the perceived cost estimation problem is an estimation problem or if it is a management problem. This paper focuses on inhibitors in the process of software cost estimation in system development projects and reports the results of a study carried out at a Swedish automotive company in order to gain an understanding for the factors that affect the cost estimation process.
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- Pernstål, Joakim, 1964, et al.
(författare)
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An Investigation of Manufacturing Challenges in Automotive Software Development from a Lean Perspective
- 2009
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Ingår i: Proceedings of the 19th International Conference on Flexible Automation and Intelligent Manufacturing (FAIM 2009). - 9780956230331
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Konferensbidrag (refereegranskat)abstract
- The automotive industry is facing a tremendous growth in software and system engineering in productdevelopment. This is pressing the automakers to build up software competencies and elaborate efficientprocesses for product development and production. The involvement of manufacturing engineering in productdevelopment has consequently become imperative since the increase in software-based systems implies a greaternumber of product variants and a higher degree of complexity to be managed in the manufacturing processes.This paper presents an investigation of the interaction between the functions of product development andmanufacturing in automotive software development from a lean production perspective. The primarily objectiveof the study presented in this paper is to increase the understanding of the area by using complementaryperspectives found in related literature and the empirical results of a previous explorative multiple case studyundertaken at two Swedish automotive companies. Since automakers aim to achieve product differentiation in abroad market and cost leadership by adopting lean production emerged issues were primarily analyzed from alean perspective. Challenging issues were found and the analysis indicated that it is useful to adopt a leanapproach within the realm of the investigated area of interest since it seems to constitute an appropriatefoundation for remedial measures.
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- Rad, Alexander, 1976-, et al.
(författare)
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Reconsideration of the Bank Credit Assessments : Theoretical and Practical Issues
- 2009
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Konferensbidrag (refereegranskat)abstract
- The purpose of this paper is to discuss conceptual issues related to the bank credit assessment decision in the context of current events in the financial markets. To add to the theoretical discussion, a case study of a large Swedish bank will be conducted and data will be captured and then analyzed with the repertory grid technique. Additionally, information will be collected through interviews with about 60 bank managers or bank loan officers to allow statistical analyses. Similarities and differences between groups of bank loan officers (e.g. senior experts and novices) are important to identify in the context of current events. To add validity to this study, a “co-research” approach will be used by involving the bank managers and bank loan officers in analyzing and interpreting the results. Attempts will be made to identify any differences in the decision approaches of bank managers and bank loan officers pre- and post- the current financial crisis. The credit assessment decision processes will be examined by focusing on the initial encounter between the applicant and the bank loan officer who generates the first screening of the application. Information will be gathered regarding the identity of information used by the suppliers of credit in order to evaluate loan applications for approval or rejection and how this information can be categorized to enhance comparability between application cases, borrowers and personal attributes for bank loan officers. Theoretically the research rests upon financial theory, institutional theory, structuration, sense-making, accountability and cognitive theory. The conference paper outlines the methods to be used, discusses advantages and limitations with respect to validity and reliability of the methods, and tests the repertory grid technique on one respondent in a pre-study. It is concluded that the planned approach is feasible.
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- Törner, Fredrik, 1978, et al.
(författare)
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Automotive Safety Case – A Qualitative Case Study of Drivers, Usages, and Issues
- 2008
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Ingår i: Proceedings of the 11th IEEE High Assurance Systems Engineering Symposium, 2008..
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Konferensbidrag (refereegranskat)abstract
- The automotive industry is using software and electronics to an increasing degree to realize new functionality that can be considered to be safety related. This qualitative study, with rigorous data analysis, takes the perspective of automotive vehicle manufacturers and explores the drivers, usages and potential issues in relation to a possible introduction of the safety case concept in the automotive industry. The study involves three automotive OEMs contributing access to potential stakeholders of a safety case. The study identifies 18 motivating factors for the introduction of safety cases, e.g. need of engineer design support and a definition of acceptable risk. Further, 21 possible usages of a safety case are identified and classified into five subcategories, e.g. communication and system development. To conclude, the study identifies several drivers for introducing safety cases as well as a wide application area, but also raises questions about their design, required competence, and increased workload.
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