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- Cronholm, Stefan, et al.
(author)
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Guiding situated method transfer in design and evaluation
- 2013
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In: Universal Access in the Information Society. - : Springer. - 1615-5289 .- 1615-5297. ; 14:2, s. 151-168
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Journal article (peer-reviewed)abstract
- The purpose is to suggest guidelines for supporting the transfer of design and evaluation methods from one organization/field/sector to another. There exist a variety of methods for designing and evaluating interactive socio-technical systems. Many of them have been developed for dedicated purposes, such as heuristic evaluation, referring to specific situations and artifacts. Due to the recent diversification of devices and the continuing diffusion of society with interactive systems, applying design and evaluation methods in an effective and efficient way has become crucial, in particular when operating under tight economic conditions and demanding user constraints. Learning from other projects, cases, disciplines or sectors seems to be one way to effectively apply methods in design and evaluation. In order to validate the suggested guidelines, the guidelines are theoretically informed and empirically supported by the use of a case study. The results consist of a set of seven guidelines for method transfer. The guidelines are described in terms of questions to ask, expected input and expected output and how they relate to the other guidelines. Transferring methods require an informed procedure, reflecting the rationale of methods, application-specific factors and experience of use. In this paper, some conceptual foundations are given when exploring transferability of methods and implemented in the field of IT cross-sector developments. The developed guidelines allow developers to identify situation-specific elements and design an effective learning experience for a case at hand. The introduced content structure and interactive features show an effective way of developer support.
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| 2. |
- Griesmaier, Elke, et al.
(author)
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Systematic characterization of amplitude-integrated EEG signals for monitoring the preterm brain
- 2013
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In: Pediatric Research. - : Springer Science and Business Media LLC. - 0031-3998 .- 1530-0447. ; 73:2, s. 226-235
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Journal article (peer-reviewed)abstract
- BACKGROUND: In preterm infants, the amplitude-integrated electroencephalogram (aEEG) is not established in clinical routine. The aim of this study was to derive normative data on aEEG parameters by means of longitudinal characterization and to evaluate the impact of gestational age (GA), postnatal age (PNA), postmenstrual age, sedation, and patent ductus arteriosus (PDA). METHODS: Recordings from 61 infants with GA 28-31 weeks were obtained during the first 72 h, then weekly until the age of 4 wk. Infants were divided into three groups: (i) no sedation, no PDA, (ii) sedation, no PDA, and (iii) sedation, PDA. Assessed parameters included background activity, cycling, amplitude, and log ratio of the maximum/minimum amplitude. RESULTS: GA and PNA had a significant impact within 72h. Sedation modified aEEG, and presence of PDA was associated with reduced aEEG scores within 72 h. The log ratio of the amplitude correlated with GA but was unaffected by sedation and PDA. CONCLUSION: Evaluation of electrocortical background activity within the first postnatal hours and longitudinally over days and weeks is important to better understand the postnatal factors impacting cerebral function in preterm infants. There is a need to agree on definitions and a standardized reporting system in order to permit comparisons between studies and establish aEEG as a method for routine monitoring of preterm infants.
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