Technology Portfolio Planning by Weighted Graph Analysis of System Architectures.

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  • Additional Information
    • Author-Supplied Keywords:
      AS09 other application sectors
      SEE01 systems thinking
      SEE06 architectural design
    • NAICS/Industry Codes:
      523999 Miscellaneous Financial Investment Activities
      523930 Investment Advice
    • Abstract:
      ABSTRACT Many systems undergo significant architecture-level change throughout their lifecycles in order to adapt to new operating and funding contexts, to react to failed technology development, or to incorporate new technologies. In all cases early architecture selection and technology investment decisions will constrain the system to certain regions of the tradespace, which can limit the evolvability of the system and its robustness to exogenous changes. In this paper we present a method for charting development pathways within a tradespace of potential architectures, with a view to enabling robustness to technology portfolio realization and later architectural changes. The tradespace is first transformed into a weighted, directed graph of architecture nodes with connectivity determined by relationships between technology portfolios and functional architecture. The tradespace exploration problem is then restated as a shortest path problem through this graph. This method is applied to the tradespace of in-space transportation architectures for missions to Mars, finding that knowledge of pathways through the tradespace can identify negative coupling between functional architectures and particular technologies, as well as identify ways to prioritize future technology investments. [ABSTRACT FROM AUTHOR]
    • Abstract:
      Copyright of Systems Engineering is the property of John Wiley & Sons, Inc. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
    • Author Affiliations:
      1Department of Aeronautics and Astronautics, 77 Massachusetts Avenue Rm 33‐409, Massachusetts Institute of Technology, Cambridge MA, 02139
      2Engineering Systems Division, Massachusetts Institute of Technology, 77 Massachusetts Avenue 31‐161B, Cambridge MA, 02139
      3Skolkovo Institute of Science and Technology, ul. Novaya d. 100, Skolkovo 143025, Russia
    • ISSN:
      1098-1241
    • Accession Number:
      10.1002/sys.21287
    • Accession Number:
      100372122
  • Citations
    • ABNT:
      DAVISON, P.; CAMERON, B.; CRAWLEY, E. F. Technology Portfolio Planning by Weighted Graph Analysis of System Architectures. Systems Engineering, [s. l.], v. 18, n. 1, p. 45–58, 2015. DOI 10.1002/sys.21287. Disponível em: http://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=asn&AN=100372122. Acesso em: 1 dez. 2020.
    • AMA:
      Davison P, Cameron B, Crawley EF. Technology Portfolio Planning by Weighted Graph Analysis of System Architectures. Systems Engineering. 2015;18(1):45-58. doi:10.1002/sys.21287
    • APA:
      Davison, P., Cameron, B., & Crawley, E. F. (2015). Technology Portfolio Planning by Weighted Graph Analysis of System Architectures. Systems Engineering, 18(1), 45–58. https://doi.org/10.1002/sys.21287
    • Chicago/Turabian: Author-Date:
      Davison, Peter, Bruce Cameron, and Edward F. Crawley. 2015. “Technology Portfolio Planning by Weighted Graph Analysis of System Architectures.” Systems Engineering 18 (1): 45–58. doi:10.1002/sys.21287.
    • Harvard:
      Davison, P., Cameron, B. and Crawley, E. F. (2015) ‘Technology Portfolio Planning by Weighted Graph Analysis of System Architectures’, Systems Engineering, 18(1), pp. 45–58. doi: 10.1002/sys.21287.
    • Harvard: Australian:
      Davison, P, Cameron, B & Crawley, EF 2015, ‘Technology Portfolio Planning by Weighted Graph Analysis of System Architectures’, Systems Engineering, vol. 18, no. 1, pp. 45–58, viewed 1 December 2020, .
    • MLA:
      Davison, Peter, et al. “Technology Portfolio Planning by Weighted Graph Analysis of System Architectures.” Systems Engineering, vol. 18, no. 1, Jan. 2015, pp. 45–58. EBSCOhost, doi:10.1002/sys.21287.
    • Chicago/Turabian: Humanities:
      Davison, Peter, Bruce Cameron, and Edward F. Crawley. “Technology Portfolio Planning by Weighted Graph Analysis of System Architectures.” Systems Engineering 18, no. 1 (January 2015): 45–58. doi:10.1002/sys.21287.
    • Vancouver/ICMJE:
      Davison P, Cameron B, Crawley EF. Technology Portfolio Planning by Weighted Graph Analysis of System Architectures. Systems Engineering [Internet]. 2015 Jan [cited 2020 Dec 1];18(1):45–58. Available from: http://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=asn&AN=100372122