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- Hauge, Jannicke B., et al.
(författare)
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Applying gamification for developing formal knowledge models : Challenges and requirements
- 2016
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Ingår i: IFIP WG 5.7 International Conference on Advances in Production Management Systems, APMS 2016. - Cham : Springer-Verlag New York. - 9783319511320 ; , s. 713-720
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Konferensbidrag (refereegranskat)abstract
- A main challenge in developing formal knowledge models is to efficiently elicit knowledge from various resources and form a coherent body of knowledge that can be validated and extended by user communities. The higher the complexity of a system, the more challenging it is to establish these models, specifically if there are several stakeholders involved, with various level of knowledge and needs. The usage of participatory design approaches in combination with Serious Games (SG) could ensure that all stakeholders are active, as well as that each perspective can be considered. So far manufacturing concepts have not reached their full potential due to the fact that gamification efforts are costly, time consuming to develop, and require the constant involvement of developers even for small changes. The authors discuss the use of a gamification tool to support knowledge processes, respectively knowledge experiencing, conceptualizing, analyzing and applying in engineering environments. To support this approach, especially in terms of costs, the paper presents an approach that makes customization accessible for non-SG professionals.
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- Wiesner, K., et al.
(författare)
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Haematopoietic stem cells : Entropic landscapes of differentiation
- 2018
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Ingår i: Interface Focus. - : The Royal Society. - 2042-8898 .- 2042-8901. ; 8:6
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Tidskriftsartikel (refereegranskat)abstract
- The metaphor of a potential epigenetic differentiation landscape broadly suggests that during differentiation a stem cell approaches a stable equilibrium state from a higher free energy towards a stable equilibrium state which represents the final cell type. It has been conjectured that there is an analogy to the concept of entropy in statistical mechanics. In this context, in the undifferentiated state, the entropy would be large since fewer constraints exist on the gene expression programmes of the cell. As differentiation progresses, gene expression programmes become more and more constrained and thus the entropy would be expected to decrease. In order to assess these predictions, we compute the Shannon entropy for time-resolved single-cell gene expression data in two different experimental set-ups of haematopoietic differentiation. We find that the behaviour of this entropy measure is in contrast to these predictions. In particular, we find that the Shannon entropy is not a decreasing function of developmental pseudo-time but instead it increases towards the time point of commitment before decreasing again. This behaviour is consistent with an increase in gene expression disorder observed in populations sampled at the time point of commitment. Single cells in these populations exhibit different combinations of regulator activity that suggest the presence of multiple configurations of a potential differentiation network as a result of multiple entry points into the committed state.
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- Wiesner, S., et al.
(författare)
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Effects of environmental dynamicity on requirements engineering for complex systems
- 2017
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Ingår i: IFIP WG 5.7 International Conference on Advances in Production Management Systems, APMS 2017. - Cham : Springer. - 9783319669229 ; , s. 255-262
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Konferensbidrag (refereegranskat)abstract
- With customers demanding more and more holistic answers to their problems, solution providers respond with complex systems, integrating product, service and ICT elements into their offer. These solutions need to be aligned to a high number of requirements, coming not only from the individual customer but also from an environment of network partners, technology providers and other stakeholders. Especially for Product-Service Systems, where the solution provider takes responsibility in the operational phase, this environment is dynamic over the system life cycle. Stakeholders may enter or leave, as well as changing needs and technological capabilities. This makes the requirements towards the solution volatile, demanding a suitable Requirements Engineering approach. In this paper, it is discussed how environmental dynamicity can be monitored for its effect on requirements, with a special focus on organizational issues. Through a literature review and industrial case studies it is analysed, how it can be ensured that environmental changes can be taken into account in Requirements Engineering, leading to an optimal system configuration to address the customer problem.
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- Wiesner, S., et al.
(författare)
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Supporting the requirements elicitation process for cyber-physical product-service systems through a gamified approach
- 2016
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Ingår i: IFIP WG 5.7 International Conference on Advances in Production Management Systems, APMS 2016. - Cham : Springer New York LLC. - 9783319511320 ; , s. 687-694
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Konferensbidrag (refereegranskat)abstract
- Solutions are offered more and more in the form of Product- Service Systems (PSS), which combine tangible and intangible components into a comprehensive package for the customer. The rise of Internet of Things technology enables new ways of integrating products and services. So-called Cyber-Physical Systems (CPS) include the necessary sensors, actuators and software to provide reconfigurable functionalities for changing demands. However, engineering complexity is increased by the evolutionary aspect, as well as the increased number of stakeholders and system components involved over the whole life cycle. Understanding the underlying requirements is fundamental to establish a common perception of the targeted system among the manufacturer, service providers and the other stakeholders. This paper presents a gamified approach to elicit stakeholder requirements for the development of these complex systems. Four industrial users will use the gamified environment for refining their existing requirements.
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