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dc.contributor.authorYildirim, Unal
dc.contributor.authorCampean, I. Felician
dc.contributor.authorWilliams, Huw
dc.date.accessioned2017-07-21T13:58:36Z
dc.date.available2017-07-21T13:58:36Z
dc.date.issued2017
dc.identifier.citationYildirim U, Campean F and Williams H (2017) Function Modelling using the System State Flow Diagram. Artificial Intelligence for Engineering Design, Analysis and Manufacturing. 31(4): 413-435.en_US
dc.identifier.urihttp://hdl.handle.net/10454/12640
dc.descriptionyesen_US
dc.description.abstractThis paper introduces a rigorous framework for function modelling of complex multi-disciplinary systems based on the System State Flow Diagram (SSFD). The work addresses the need for a consistent methodology to support solution neutral function based system decomposition analysis, facilitating the design, modelling and analysis of complex systems architectures. A rigorous basis for the SSFD is established by defining conventions for states and function definition and representation scheme, underpinned by a critical review of existing literature. A set of heuristics are introduced to support the function decomposition analysis and to facilitate the deployment of the methodology with strong practitioner guidelines. The SSFD heuristics extend the existing framework of Otto and Wood (2001) by introducing a conditional fork node heuristic, to facilitate analysis and aggregation of function models across multiple modes of operation of the system. The empirical validation of the SSFD function modelling framework is discussed in relation to its application to two case studies: (i) a benchmark problem (Glue Gun) set for the engineering design community; and (ii) an industrial case study of an electric vehicle powertrain. Based on the evidence from the two case studies presented in the paper, a critical evaluation of the SSFD function modelling methodology is presented based on the function benchmarking framework established by Summers et al (2013), considering the representation, modelling, cognitive and reasoning characteristics. The significance of this paper is that it establishes a rigorous reference framework for the SSFD function representation and a consistent methodology to guide the practitioner with its deployment, facilitating its impact to industrial practice.en_US
dc.language.isoenen_US
dc.relation.isreferencedbyhttps://doi.org/10.1017/S0890060417000294en_US
dc.rights© 2017 Cambridge University Press.This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.en_US
dc.subjectFunction modelling; State diagrams; System State Flow Diagram (SSFD); Functional architecture; Heuristics; Functional requirements; Systems engineeringen_US
dc.titleFunction Modelling using the System State Flow Diagramen_US
dc.status.refereedyesen_US
dc.date.Accepted2017-07-04
dc.typeArticleen_US
dc.type.versionPublished versionen_US
refterms.dateFOA2018-07-27T01:34:50Z


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