SYNTHESIS OF FUNCTIONAL MODELS FROM USE CASES USING THE SYSTEM STATE FLOW DIAGRAM: A NESTED SYSTEMS APPROACH

DS 92: Proceedings of the DESIGN 2018 15th International Design Conference

Year: 2018
Editor: Marjanović D., Štorga M., Škec S., Bojčetić N., Pavković N.
Author: Campean, Felician; Yildirim, Unal; Henshall, Ed
Series: DESIGN
Section: SYSTEMS ENGINEERING AND DESIGN
Page(s): 2833-2844
DOI number: https://doi.org/10.21278/idc.2018.0543

Abstract

The research presented in this paper addresses the challenge of developing functional models for complex systems that have multiple modes of operation or use cases. An industrial case study of an electric vehicle is used to illustrate the proposed methodology, which is based on a systematic modelling of functions through nested systems using the system state flow diagram (SSFD) method. The paper discusses the use of SSFD parameter based state definition to identify physical and logical conditions for joining function models, and the use of heuristics to construct complex function models.

Keywords: functional modelling, complex systems, case study, nested systems

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