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Analysing interactive devices based on information resource constraints

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Show simple item record Creissac Campos, José Doherty, Gavin Harrison, Michael D 2015-03-20T16:53:31Z 2015-03-20T16:53:31Z 2014
dc.description peer-reviewed en_US
dc.description.abstract Analysis 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. en_US
dc.language.iso eng en_US
dc.publisher Elsevier en_US
dc.relation.ispartofseries International Journal of Human Computer Studies;73 (3) pp. 284-297
dc.rights Open Access funded by Engineering and Physical Sciences Research Council en_US
dc.subject formal analysis en_US
dc.subject task analysis en_US
dc.subject distributed cognition en_US
dc.subject IV infusion pumps en_US
dc.title Analysing interactive devices based on information resource constraints en_US
dc.type info:eu-repo/semantics/article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US
dc.identifier.doi 10.1016/j.ijhcs.2013.10.005
dc.contributor.sponsor ERDF en_US
dc.contributor.sponsor SFI en_US
dc.relation.projectid EP/G059063/1 en_US
dc.relation.projectid 10/CE/I1855 en_US
dc.rights.accessrights info:eu-repo/semantics/closedAccess en_US

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