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Impact of experience and team size on the quality of scenarios for architecture evaluation

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dc.contributor.author Biffl, Stefan
dc.contributor.author Ali Babar, Muhammad
dc.contributor.author Winkler, Dietmar
dc.date.accessioned 2012-03-20T16:52:34Z
dc.date.available 2012-03-20T16:52:34Z
dc.date.issued 2008
dc.identifier.uri http://hdl.handle.net/10344/2108
dc.description peer-reviewed en_US
dc.description.abstract Software and systems architecture is a success-critical issue in software projects. Changing nonfunctional quality requirements, e.g., performance, modifiability, and maintainability, can have strong impact on software architecture and can result in a high rework effort in case of changes. Architecture reviews help evaluating architectural design with scenarios in early stages of product development. Quality-sensitive scenarios represent a set of software requirements (including non-functional quality attributes). In this paper we empirically investigate the impact of potentially important factors on the number and quality of scenarios elicited in an architecture evaluation workshop: (a) scoring schemes for scenario quality, (b) workshop participant experience, and (c) team size for workshop group work. We report data analysis results from an empirical study where 24 reviewers at different experience levels identified over 100 scenarios. Main findings are: (a) results of different scoring approaches (frequency-based and expert scoring) agree very well regarding critical scenarios, (b) the scenario elicitation method was more important than individual experience, and (c) adding a new person to a team of size 3 or more increases scenario coverage by less than 10%. en_US
dc.language.iso eng en_US
dc.relation.ispartofseries 12th International Conference on Evaluation and Assessment in Sottware Engineering;2008
dc.subject architecture evaluation en_US
dc.subject quality attributes en_US
dc.subject scenarios en_US
dc.subject empirical studies en_US
dc.title Impact of experience and team size on the quality of scenarios for architecture evaluation en_US
dc.type Conference item en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US
dc.type.restriction none en
dc.contributor.sponsor SFI

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