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Sökning: swepub > Konferensbidrag > Göteborgs universitet > Lunds universitet > Engelska

  • Resultat 1-10 av 27
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  • Berntsson Svensson, Richard, et al. (författare)
  • Prioritization of quality requirements: State of practice in eleven companies
  • 2011
  • Ingår i: 2011 IEEE 19th International Requirements Engineering Conference, RE 2011; Trento; 29 August 2011 through 2 September 2011. - 978-145770923-4 ; s. 69-78
  • Konferensbidrag (refereegranskat)abstract
    • Requirements prioritization is recognized as an important but challenging activity in software product development. For a product to be successful, it is crucial to find the right balance among competing quality requirements. Although literature offers many methods for requirements prioritization, the research on prioritization of quality requirements is limited. This study identifies how quality requirements are prioritized in practice at 11 successful companies developing software intensive systems. We found that ad-hoc prioritization and priority grouping of requirements are the dominant methods for prioritizing quality requirements. The results also show that it is common to use customer input as criteria for prioritization but absence of any criteria was also common. The results suggests that quality requirements by default have a lower priority than functional requirements, and that they only get attention in the prioritizing process if decision-makers are dedicated to invest specific time and resources on QR prioritization. The results of this study may help future research on quality requirements to focus investigations on industry-relevant issues.
  • Thomas, Richard, et al. (författare)
  • DESIREE Physics with cold stored ion beams
  • 2015
  • Ingår i: DR2013 : Ninth international conference on dissociative recombination: theory, experiment, and applications.
  • Konferensbidrag (refereegranskat)abstract
    • Here we will briefly describe the commissioning of the Double ElectroStatic Ion Ring ExpEriment (DESIREE) facility at Stockholm University, Sweden. This device uses purely electrostatic focussing and deflection elements and allows ion beams of opposite charge to be confined under extreme high vacuum and cryogenic conditions in separate rings and then merged over a common straight section. This apparatus allows for studies of interactions between cations and anions at very low and well-defined centre-of-mass energies (down to a few meV) and at very low internal temperatures (down to a few K).
  • Borin, Lars, 1957-, et al. (författare)
  • Mining semantics for culturomics: towards a knowledge-based approach
  • 2013
  • Ingår i: 2013 ACM International Workshop on Mining Unstructured Big Data Using Natural Language Processing, UnstructureNLP 2013, Held at 22nd ACM International Conference on Information and Knowledge Management, CIKM 2013; San Francisco, CA; United States; 28 October 2013 through 28 October 2013. - 978-1-4503-2415-1 ; s. 3
  • Konferensbidrag (refereegranskat)
  • Strannegård, Claes, 1962-, et al. (författare)
  • Transparent Neural Networks: Integrating Concept Formation and Reasoning
  • 2012
  • Ingår i: Lecture notes in computer sciences: 5th International Conference on Artificial General Intelligence, AGI 2012; Oxford; United Kingdom; 8 December 2012 through 11 December 2012. - 1611-3349. - 978-364235505-9 ; 7716, s. 302-311
  • Konferensbidrag (refereegranskat)
  • Berntsson Svensson, Richard, 1978-, et al. (författare)
  • A Case Study Evaluation of the Guideline-Supported QUPER Model for Elicitation of Quality Requirements
  • 2015
  • Ingår i: Requirements Engineering: Foundation for Software Quality/Lecture Notes in Computer Science. - Springer. - 1611-3349 .- 0302-9743. - 978-3-319-16101-3 - 978-3-319-16100-6 ; 9013, s. 230-246
  • Konferensbidrag (refereegranskat)abstract
    • [Context & motivation] For market-driven software product developing organizations operating on a competitive open market, it is important to plan the product’s releases so that they can reach the market as early as possible with a competitive level of quality compared to its competitors' products. Hence, quality requirements can be seen as a key competitive advantage. The QUPER model was developed with the aim to support high-level decision-making in release planning of quality requirements. [Question/problem] As a follow up on previous studies on QUPER, this study investigates: What are practitioner's views on the utilities of QUPER extended with guidelines including domain-specific examples? [Principal ideas/results] In the presented case study, a set of detailed guidelines of how to apply QUPER in practice, including how to handle cost dependencies between quality requirements, was evaluated at a case company in the mobile handset domain with 24 professionals using real quality requirements. [Contribution] The results point to the importance of having concrete guidelines combined with instructive examples from real practice, while it is not always obvious for a practitioner to transfer cost-dependency examples into the domains that are different from the example domain. The transferability of guidelines and examples to support methodology adoption is an interesting issue for further research.
  • Karlsson, Johan, et al. (författare)
  • Laplace model for multi-axial responses in fatigue analysis of a cultivator frame
  • 2014
  • Ingår i: Proceedings of the 3rd International Commercial Vehicle Technology Symposium (CVT 2014). - Shaker Verlag. - 978-38-44-02573-6 ; s. 141-150
  • Konferensbidrag (refereegranskat)abstract
    • This paper reviews means for fatigue damage rates estimation using Laplace distributed multiaxial loads. The model is suitable for description of stresses containing transients of random amplitudes and locations. Explicit formulas for computing the expected value of rainflow damage index as a function of excess kurtosis are given for correlated loads. A Laplace model is used to describe variability of forces and bending moments measured at some location on a cultivator frame. An example of actual cultivator data is used to illustrate the model and demonstrate the accuracy of damage index prediction.
  • Allwood, Carl Martin, et al. (författare)
  • Contagious contacts: How police trainees influence each other's memories for a criminal event
  • 2004
  • Ingår i: Oral paper presented at the 14?th European Conference on Psychology and Law (Cracow, Poland).
  • Konferensbidrag (refereegranskat)abstract
    • This study investigated the effect of confirmatory and disconfirmatory feedback on the accuracy (realism) in witnesses’ confidence judgements of their event memory. After watching a short video of a kidnapping the participants answered 44 two-alternative questions on the videotape. Two weeks later the participants were handed their old question-answering sheet with the original questions and their own answers. In addition feedback was provided in writing for each answer. The participants were asked to give confidence ratings with respect to the correctness of each answer. In the Control condition the participants received no feedback. Overall, the witnesses’ confidence ratings showed overconfidence in all conditions. Furthermore, confirmatory feedback caused higher overconfidence, compared both with disconfirmatory feedback and no feedback. The results show that the realism in the eyewitnesses’ confidence judgements of their event memory is indeed sensitive to co-witness feedback, especially to confirming feedback.
  • Allwood, Carl Martin, et al. (författare)
  • The realism of confidence judgments of statements in the Cognitive and Standard Interviews
  • 2003
  • Ingår i: 13th Conference of the European Association of Psychology and Law, Edinburgh, UK, 7-12 July.
  • Konferensbidrag (refereegranskat)abstract
    • The Cognitive Interview (CI) is a well-researched interview method and the research results show that CI, compared with more conventional interview styles, enhances witnesses’ memory. However, not much research has been done on the question of how CI affects the realism of eyewitnesses’ judgments of confidence in the veracity of their interview statements. In a previous study (Granhag, Jonsson & Allwood, Psychology, Crime & Law, in press) we investigated the realism of witnesses’ confidence judgments of their own answers to two-alternative questions. These questions were produced by the researchers to test the witnesses’ retention of a filmed kidnapping. Our results showed that, in this context, the CI does not appear to affect the realism in witnesses’ confidence, and not to inflate confidence in erroneous recall, compared to a Standard Interview (SI). In the present study our ambition was to conduct an ecologically more valid study of the realism of witnesses’ confidence judgments. Again, the CI was compared with a SI. The witnesses (n= 58) returned about two weeks after having been interviewed about their memories of the filmed kidnapping and were, at return, presented with transcribed versions of parts of their interview statements. These were confidence judged by the witnesses. The witnesses also gave an overall judgment of how many of all answered questions they had answered correctly (i.e., a frequency judgment). In our presentation, results will be presented regarding the realism of the witnesses’ confidence and frequency judgments in this, compared to our previous research, more ecologically valid study.
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