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An Initial Study on Monetary Cost Evaluation for the Design of Automotive Electrical Architectures
Arkadeb Ghosal, Sri Kanajan, Randall Urbance, Alberto Sangiovanni-Vincentelli

Citation
Arkadeb Ghosal, Sri Kanajan, Randall Urbance, Alberto Sangiovanni-Vincentelli. "An Initial Study on Monetary Cost Evaluation for the Design of Automotive Electrical Architectures". SAE 2007 Transactions: Journal of Passenger Cars: Electronic and Electrical Systems, pp. 844-856, March 2007; ISBN: 978-0-7680-1839-4.

Abstract
One of the many challenges facing electronic system architects is how to provide a cost estimate related to design decisions over the entire life-cycle and product line of the architecture. Various cost modeling techniques may be used to perform this estimation. However, the estimation is often done in an ad-hoc manner, based on specific design scenarios or business assumptions. This situation may yield an unfair comparison of architectural alternatives due to the limited scope of the evaluation. A preferred estimation method would involve rigorous cost modeling based on architectural design cost drivers similar to those used in the manufacturing (e.g. process-based technical cost modeling) or in the enterprise software domain (e.g. COCOMO). This paper describes an initial study of a cost model associated with automotive electronic system architecture. The model's intended use is to evaluate system cost drivers in response to various architectural decisions (e.g. choosing a communication bus topology or mapping a function to hardware). The primary cost driver categories explored are design and development, part fabrication, assembly and in-service costs. The preliminary version of this cost model focuses on describing the key influences on cost, but not the entire mathematical model. The paper presents the cost model with the help of influence diagrams and illustrates the use of the cost modeling methodology through an automotive case study – a steer-by-wire system. As future work, we propose to build a cost model and supporting methodology that accounts for architecture evolution to address the issue of evolving architecture requirements as well as when and where to employ new technology in the architecture.

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Citation formats  
  • HTML
    Arkadeb Ghosal, Sri Kanajan, Randall Urbance, Alberto
    Sangiovanni-Vincentelli. <a
    href="http://chess.eecs.berkeley.edu/pubs/225.html"
    >An Initial Study on Monetary Cost Evaluation for the
    Design of Automotive Electrical Architectures</a>,
    <i>SAE 2007 Transactions: Journal of Passenger Cars:
    Electronic and Electrical Systems</i>, pp. 844-856,
    March 2007; ISBN: 978-0-7680-1839-4.
  • Plain text
    Arkadeb Ghosal, Sri Kanajan, Randall Urbance, Alberto
    Sangiovanni-Vincentelli. "An Initial Study on Monetary
    Cost Evaluation for the Design of Automotive Electrical
    Architectures". <i>SAE 2007 Transactions: Journal
    of Passenger Cars: Electronic and Electrical
    Systems</i>, pp. 844-856, March 2007; ISBN:
    978-0-7680-1839-4.
  • BibTeX
    @article{GhosalKanajanUrbanceSangiovanniVincentelli07_InitialStudyOnMonetaryCostEvaluationForDesignOfAutomotive,
        author = {Arkadeb Ghosal and Sri Kanajan and Randall Urbance
                  and Alberto Sangiovanni-Vincentelli},
        title = {An Initial Study on Monetary Cost Evaluation for
                  the Design of Automotive Electrical Architectures},
        journal = {SAE 2007 Transactions: Journal of Passenger Cars:
                  Electronic and Electrical Systems},
        pages = {844-856},
        month = {March},
        year = {2007},
        note = {ISBN: 978-0-7680-1839-4},
        abstract = {One of the many challenges facing electronic
                  system architects is how to provide a cost
                  estimate related to design decisions over the
                  entire life-cycle and product line of the
                  architecture. Various cost modeling techniques may
                  be used to perform this estimation. However, the
                  estimation is often done in an ad-hoc manner,
                  based on specific design scenarios or business
                  assumptions. This situation may yield an unfair
                  comparison of architectural alternatives due to
                  the limited scope of the evaluation. A preferred
                  estimation method would involve rigorous cost
                  modeling based on architectural design cost
                  drivers similar to those used in the manufacturing
                  (e.g. process-based technical cost modeling) or in
                  the enterprise software domain (e.g. COCOMO). This
                  paper describes an initial study of a cost model
                  associated with automotive electronic system
                  architecture. The model's intended use is to
                  evaluate system cost drivers in response to
                  various architectural decisions (e.g. choosing a
                  communication bus topology or mapping a function
                  to hardware). The primary cost driver categories
                  explored are design and development, part
                  fabrication, assembly and in-service costs. The
                  preliminary version of this cost model focuses on
                  describing the key influences on cost, but not the
                  entire mathematical model. The paper presents the
                  cost model with the help of influence diagrams and
                  illustrates the use of the cost modeling
                  methodology through an automotive case study â a
                  steer-by-wire system. As future work, we propose
                  to build a cost model and supporting methodology
                  that accounts for architecture evolution to
                  address the issue of evolving architecture
                  requirements as well as when and where to employ
                  new technology in the architecture. },
        URL = {http://chess.eecs.berkeley.edu/pubs/225.html}
    }
    

Posted by Arkadeb Ghosal on 9 May 2007.
Groups: chess
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