Technology Portfolio Planning by Weighted Graph Analysis of System Architectures
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...
| Main Authors: | , , |
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| Format: | Article |
| Language: | en_US |
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Wiley Blackwell
2015
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| Online Access: | http://hdl.handle.net/1721.1/96926 |
| _version_ | 1826193564065857536 |
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| author | Davison, Peter Crawley, Edward F. Cameron, Bruce Gregory |
| author2 | Massachusetts Institute of Technology. Department of Aeronautics and Astronautics |
| author_facet | Massachusetts Institute of Technology. Department of Aeronautics and Astronautics Davison, Peter Crawley, Edward F. Cameron, Bruce Gregory |
| author_sort | Davison, Peter |
| collection | MIT |
| description | 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. |
| first_indexed | 2024-09-23T09:41:06Z |
| format | Article |
| id | mit-1721.1/96926 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T09:41:06Z |
| publishDate | 2015 |
| publisher | Wiley Blackwell |
| record_format | dspace |
| spelling | mit-1721.1/969262022-09-26T13:05:04Z Technology Portfolio Planning by Weighted Graph Analysis of System Architectures Davison, Peter Crawley, Edward F. Cameron, Bruce Gregory Massachusetts Institute of Technology. Department of Aeronautics and Astronautics Massachusetts Institute of Technology. Engineering Systems Division Davison, Peter Cameron, Bruce Gregory 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. Skolkovo Institute of Science and Technology 2015-05-07T14:09:34Z 2015-05-07T14:09:34Z 2014-09 2014-06 Article http://purl.org/eprint/type/JournalArticle 10981241 1520-6858 http://hdl.handle.net/1721.1/96926 Davison, Peter, Bruce Cameron, and Edward F. Crawley. “Technology Portfolio Planning by Weighted Graph Analysis of System Architectures.” Systems Engineering 18, no. 1 (September 8, 2014): 45–58. en_US http://dx.doi.org/10.1002/sys.21287 Systems Engineering Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf Wiley Blackwell MIT web domain |
| spellingShingle | Davison, Peter Crawley, Edward F. Cameron, Bruce Gregory Technology Portfolio Planning by Weighted Graph Analysis of System Architectures |
| title | Technology Portfolio Planning by Weighted Graph Analysis of System Architectures |
| title_full | Technology Portfolio Planning by Weighted Graph Analysis of System Architectures |
| title_fullStr | Technology Portfolio Planning by Weighted Graph Analysis of System Architectures |
| title_full_unstemmed | Technology Portfolio Planning by Weighted Graph Analysis of System Architectures |
| title_short | Technology Portfolio Planning by Weighted Graph Analysis of System Architectures |
| title_sort | technology portfolio planning by weighted graph analysis of system architectures |
| url | http://hdl.handle.net/1721.1/96926 |
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