A method to establish a trade-space of system requirements and life cycle cost

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dc.contributor.authorAbdul Rahim, Nadirah Binti
dc.contributor.authorFerris, Timothy L. J.
dc.date.accessioned2019-07-03T10:28:32Z
dc.date.available2019-07-03T10:28:32Z
dc.date.issued2019-06-28
dc.description.abstractSystems engineering traditionally approaches design of systems through determination of requirements for and implementation of a system. The system is conceived as something to enable achievement of an effect with the tacit assumption that the system to be designed must achieve technical performance, including availability characteristics, which enable delivery of the whole of the intended effect. This approach determines the technical requirements of the system to ensure achievement of the system purpose under assumptions about how the system, or fleet, would be deployed to provide the intended service. Commonly cost is addressed after requirements, either to find the cheapest method to achieve the requirements or as one dimension of a trade-space analysis. We explore a different philosophy for finding the system requirements; starting with the required system level service provision, but agnostic about the technical quality needed. We investigate a trade-space including the life cycle cost (LCC) of service provision as a contribution to determining subsystem requirements. We model the life cycle, for many variations of technical composition, using a Monte Carlo method, and show that a trade-space of LCC and requirements is likely to produce a cheaper solution than starting with sub-system requirements.en_UK
dc.identifier.citationAbdul Rahim NB, Ferris TLJ. (2019) A method to establish a trade-space of system requirements and life cycle cost. IEEE Systems Journal, Volume 14, Issue 1, 2019, pp.1257-1264en_UK
dc.identifier.issn1932-8184
dc.identifier.urihttps://doi.org/10.1109/JSYST.2019.2923360
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/14286
dc.language.isoenen_UK
dc.publisherIEEEen_UK
dc.rightsAttribution-NonCommercial 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/*
dc.subjectCostsen_UK
dc.subjectSystem lifecycle managementen_UK
dc.subjectSystems requirements managementen_UK
dc.subjectSystems technical assessmenten_UK
dc.titleA method to establish a trade-space of system requirements and life cycle costen_UK
dc.typeArticleen_UK

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