An Integrated Process Model for the Systems Development Requiring Simultaneous Consideration of the SE Process and Safety Requirements

Yoon, Jae Han; Lee, Jae-Chon; Kim, Tae Hyun; Hong, Seon-Ho

doi:10.1109/systems.2008.4519022

2008 2nd Annual IEEE Systems Conference 2008

DOI: 10.1109/systems.2008.4519022

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An Integrated Process Model for the Systems Development Requiring Simultaneous Consideration of the SE Process and Safety Requirements

Jae Han Yoon

Jae-Chon Lee

Tae Hyun Kim

et al.

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2016

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“…A simpler model is shown in another paper (Yoon, et al, 2008) in which the authors use the ISO/IEC15288:2002 system life cycle model to derive a "hierarchical structure of a system-of-interest" (Yoon, et al, 2008), which can in turn be mapped onto a single V-model.…”

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Systems engineering framework for railway control & safety systems

King¹

2016

2016 IEEE International Conference on Intelligent Rail Transportation (ICIRT)

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EXECUTIVE SUMMARY AND ABSTRACTIn this report I detail how I have investigated the feasibility of producing a systems engineering framework that can be applied to all forms of Railway Control & Safety (RCS) systems in order to simplify their development, delivery and implementation. Based on this research, I propose two simple models that can be used to model conventional signalling, ERTMS, CBTC and PTC systems; a functional model and a physical model. I have looked into how these models can be utilised to model specific systems and how this can then be used to identify the high-level functionality and interfaces of individual sub-systems across different physical locations and organisations. I go on to propose a simple method to keep track of individual subsystem locations and their high-level functionality. I also propose how the functional model can be represented as a negative-feedback control system. I then examined the development and implementation of RCS systems and propose that these systems go through two unique V-cycles, a generic product development V-cycle (by suppliers) and a specific application V-cycle (by operators). I propose that this results in the whole system lifecycle being covered by a closed-loop W-cycle that shows the complete development and procurement process for most metro railway RCS systems. I go on to propose that a more complex process is often required on mainline railways where there are often multiple sub-systems that are procured from separate suppliers and must be integrated into a single system. I conclude with a study of different project delivery structures for RCS upgrade programmes and recommend a balanced system-centric structure.My conclusions are that RCS systems are critical to both the safety and performance of the railway and are complex systems of systems. They have clearly defined functional sub-systems that contribute to these two key criteria. Based on my findings, I suggest that a systematic approach to the development, as well as the deployment, of RCS is therefore vital in order to ensure successful development, delivery and integration of modern RCS systems, such as ERTMS, TMS & DAS. ACKNOWLEDGEMENTS

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mentioning

confidence: 99%

Systems engineering framework for railway control & safety systems

King¹

2016

2016 IEEE International Conference on Intelligent Rail Transportation (ICIRT)

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An Integrated Process Model for the Systems Development Requiring Simultaneous Consideration of the SE Process and Safety Requirements

Cited by 1 publication

References 6 publications

Systems engineering framework for railway control & safety systems

Systems engineering framework for railway control & safety systems

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