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    Functional modelling of complex multi‑disciplinary systems using the enhanced sequence diagram

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    yildirim_and_campean_2020 (1.482Mb)
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    Publication date
    2020-10
    Author
    Yildirim, Unal
    Campean, I. Felician
    Keyword
    Sequence diagrams
    Functional requirements
    Function architecture
    Structure architecture
    Complex multidisciplinary systems
    Rights
    (c) 2020 The Authors. This is an Open Access article distributed under the Creative Commons CC-BY license (http://creativecommons.org/licenses/by/4.0/)
    Peer-Reviewed
    Yes
    
    Metadata
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    Abstract
    This paper introduces an Enhanced Sequence Diagram (ESD) as the basis for a structured framework for the functional analysis of complex multidisciplinary systems. The ESD extends the conventional sequence diagrams (SD) by introducing a rigorous functional flow-based modelling schemata to provide an enhanced basis for model-based functional requirements and architecture analysis in the early systems design stages. The proposed ESD heuristics include the representation of transactional and transformative functions required to deliver the use case sequence, and fork and join nodes to facilitate analysis of combining and bifurcating operations on flows. A case study of a personal mobility device is used to illustrate the deployment of the ESD methodology in relation to three common product development scenarios: (i) reverse engineering, (ii) the introduction of a specific technology to an existent system; and (iii) the introduction of a new feature as user-centric innovation for an existing system, at a logical design level, without reference to any solution. The case study analysis provides further insights into the effectiveness of the ESD to support function modelling and functional requirements capture, and architecture development. The significance of this paper is that it establishes a rigorous ESD-based functional analysis methodology to guide the practitioner with its deployment, facilitating its impact to both the engineering design and systems engineering communities, as well as the design practice in the industry.
    URI
    http://hdl.handle.net/10454/17978
    Version
    Published version
    Citation
    Yildirim U and Campean IF (2020) Functional modelling of complex multi‑disciplinary systems using the enhanced sequence diagram. Research in Engineering Design - Theory, Applications, and Concurrent Engineering. 31: 429-448.
    Link to publisher’s version
    https://doi.org/10.1007/s00163-020-00343-8
    Type
    Article
    Collections
    Engineering and Informatics Publications

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