Assessing Changeability in Aerospace Systems Architecting and Design Using Dynamic Multi-Attribute Tradespace Exploration
A framework for assessing changeability in the context of dynamic Multi-Attribute Tradespace Exploration (MATE) is proposed and applied to three aerospace systems. The framework consists of two parts. First, changeability concepts such as flexibility, scalability, and robustness are defined in a...
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| Format: | Presentation |
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2014
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| Online Access: | http://hdl.handle.net/1721.1/84541 |
| _version_ | 1811097746534301696 |
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| author | Ross, Adam M. Hastings, Daniel E. |
| author_facet | Ross, Adam M. Hastings, Daniel E. |
| author_sort | Ross, Adam M. |
| collection | MIT |
| description | A framework for assessing changeability in the context of dynamic Multi-Attribute
Tradespace Exploration (MATE) is proposed and applied to three aerospace systems. The
framework consists of two parts. First, changeability concepts such as flexibility, scalability,
and robustness are defined in a value-centric context. These system properties are shown to
relate “real-space to value-space” dynamic mappings to stakeholder-defined subjective
“acceptable cost” thresholds. Second, network analysis is applied to a series of temporally
linked tradespaces, allowing for the quantification of changeability as a decision metric for
comparison across system architecture and design options. The quantifiable is defined as the
filtered outdegree of each design node in a tradespace network formed by linking design
options through explicitly defined prospective transition paths. Each of the system
application studies are assessed in the two part framework and within each study,
observations are made regarding the changeability of various design options. The three
system applications include a hypothetical low Earth orbit satellite mission, a currently
deployed weapon system, and a proposed large astronomical on-orbit observatory.
Preliminary cross-application observations are made regarding the embedding of
changeability into the system architecture or design. Results suggest that the low Earth orbit
satellite mission can increase its changeability by having the ability to readily change its
orbit. The weapon system can increase its changeability by continuing to embrace
modularity, use of commercial off-the-shelf parts (COTS), and simple, excess capacity
interfaces. The large astronomical observatory can increase its potential changeability by
having the ability to reconfigure its physical payloads and reschedule its observing tasks.
The analysis approach introduced in this paper is shown to be a powerful concept for
focusing discussion, design, and assessment of the changeability of aerospace systems. |
| first_indexed | 2024-09-23T17:04:16Z |
| format | Presentation |
| id | mit-1721.1/84541 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T17:04:16Z |
| publishDate | 2014 |
| record_format | dspace |
| spelling | mit-1721.1/845412019-04-10T22:35:30Z Assessing Changeability in Aerospace Systems Architecting and Design Using Dynamic Multi-Attribute Tradespace Exploration Ross, Adam M. Hastings, Daniel E. space systems systems architecting systems design changeability A framework for assessing changeability in the context of dynamic Multi-Attribute Tradespace Exploration (MATE) is proposed and applied to three aerospace systems. The framework consists of two parts. First, changeability concepts such as flexibility, scalability, and robustness are defined in a value-centric context. These system properties are shown to relate “real-space to value-space” dynamic mappings to stakeholder-defined subjective “acceptable cost” thresholds. Second, network analysis is applied to a series of temporally linked tradespaces, allowing for the quantification of changeability as a decision metric for comparison across system architecture and design options. The quantifiable is defined as the filtered outdegree of each design node in a tradespace network formed by linking design options through explicitly defined prospective transition paths. Each of the system application studies are assessed in the two part framework and within each study, observations are made regarding the changeability of various design options. The three system applications include a hypothetical low Earth orbit satellite mission, a currently deployed weapon system, and a proposed large astronomical on-orbit observatory. Preliminary cross-application observations are made regarding the embedding of changeability into the system architecture or design. Results suggest that the low Earth orbit satellite mission can increase its changeability by having the ability to readily change its orbit. The weapon system can increase its changeability by continuing to embrace modularity, use of commercial off-the-shelf parts (COTS), and simple, excess capacity interfaces. The large astronomical observatory can increase its potential changeability by having the ability to reconfigure its physical payloads and reschedule its observing tasks. The analysis approach introduced in this paper is shown to be a powerful concept for focusing discussion, design, and assessment of the changeability of aerospace systems. 2014-01-27T14:20:12Z 2014-01-27T14:20:12Z 2006-09-19 Presentation Technical Report http://hdl.handle.net/1721.1/84541 Attribution-NonCommercial-ShareAlike 3.0 United States http://creativecommons.org/licenses/by-nc-sa/3.0/us/ application/pdf |
| spellingShingle | space systems systems architecting systems design changeability Ross, Adam M. Hastings, Daniel E. Assessing Changeability in Aerospace Systems Architecting and Design Using Dynamic Multi-Attribute Tradespace Exploration |
| title | Assessing Changeability in Aerospace Systems Architecting and Design Using Dynamic Multi-Attribute Tradespace Exploration |
| title_full | Assessing Changeability in Aerospace Systems Architecting and Design Using Dynamic Multi-Attribute Tradespace Exploration |
| title_fullStr | Assessing Changeability in Aerospace Systems Architecting and Design Using Dynamic Multi-Attribute Tradespace Exploration |
| title_full_unstemmed | Assessing Changeability in Aerospace Systems Architecting and Design Using Dynamic Multi-Attribute Tradespace Exploration |
| title_short | Assessing Changeability in Aerospace Systems Architecting and Design Using Dynamic Multi-Attribute Tradespace Exploration |
| title_sort | assessing changeability in aerospace systems architecting and design using dynamic multi attribute tradespace exploration |
| topic | space systems systems architecting systems design changeability |
| url | http://hdl.handle.net/1721.1/84541 |
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