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dc.contributor.authorCampos, J. Creissac-
dc.contributor.authorDoherty, Gavin-
dc.contributor.authorHarrison, Michael D.-
dc.description.abstractAnalysis of the usability of an interactive system requires both an understanding of how the system is to be used and a means of assessing the system against that understanding. Such analytic assessments are particularly important in safety-critical systems as latent vulnerabilities may exist which have negative consequences only in certain circumstances. Many existing approaches to assessment use tasks or scenarios to provide explicit representation of their understanding of use. These normative user behaviours have the advantage that they clarify assumptions about how the system will be used but have the disadvantage that they may exclude many plausible deviations from these norms. Assessments of how a design fails to support these user behaviours can be a matter of judgement based on individual experience rather than evidence. We present a systematic formal method for analysing interactive systems that is based on constraints rather than prescribed behaviour. These constraints capture precise assumptions about what information resources are used to perform action. These resources may either reside in the system itself or be external to the system. The approach is applied to two different medical device designs, comparing two infusion pumps currently in common use in hospitals. Comparison of the two devices is based on these resource assumptions to assess consistency of interaction within the design of each device.por
dc.description.sponsorshipJosé Campos was funded by ERDF – European Regional Development Fund – through the COMPETE Programme (operational programme for competitiveness) and by National Funds through the FCT - Fundação para a Ciência e a Tecnologia (Portuguese Foundation for Science and Technology) – within the project FCOMP-01-0124-FEDER-015095.por
dc.description.sponsorshipMichael Harrison was partly funded by the CHI+MED project: Multidisciplinary Computer Human Interaction Research for the design and safe use of interactive medical devices project, UK EPSRC Grant number EP/G059063/1.por
dc.description.sponsorshipGavin Doherty would like to acknowledge the support of his research in part by Science Foundation Ireland Grant 10/CE/I1855.por
dc.subjectFormal analysispor
dc.subjectTask analysispor
dc.subjectDistributed cognitionpor
dc.subjectIV infusion pumpspor
dc.titleAnalysing interactive devices based on information resource constraintspor
oaire.citationTitleInternational Journal of Human-Computer Studiespor
dc.subject.wosScience & Technologypor
dc.subject.wosSocial Sciencespor
sdum.journalInternational Journal of Human-Computer Studiespor
Appears in Collections:HASLab - Artigos em revistas internacionais

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