Principal Investigator: Dr. Karen Marais, Purdue University (firstname.lastname@example.org)
Co-Principal Investigator: Dr. Daniel DeLaurentis, Purdue University (email@example.com)
Timeframe: Phase I: September 2011 to December 2012; Phase II: October 2012 to October 2013; Phase III: December 2013 to November 2014; Phase IV: December 2014 to November 2015; Phase V: March 2017 to August 2017.
Category: Enterprise Systems and System of Systems
Objectives: To develop and test methods that quantify the impact of system interdependencies in the context of System of Systems capability development. The products of the research can guide system engineering and architecture design activities. A variety of methods are investigated to conduct analysis of alternatives while navigating the decision space that simultaneously considers the potential positive impacts of interdependencies (e.g., a new System of Systems capability) and negative impacts (e.g. consequences of disruption). Task 36 centered on quantifying the impact of system interdependencies in the context of System of Systems capability development; this was accomplished through exploration of a set of candidate methods, processes and tools aimed at accomplishing this. Task 44b continued this research by focusing on verification and test of each method via synthetic demonstration problems. The ongoing Task 108 work is seeking to formalize the methods in the context of an System of Systems Analytic Workbench (AWB). An effective Workbench would be understandable and usable by practitioners in navigating the decision space involved in System of Systems capability development. More specifically, the Workbench would support trade-off analysis on cost, performance and resilience, among other metrics, while considering the effect of interdependencies.
Approach: The approach for the first phase of the project was to “educate first”:
- Categorize types/styles of System of Systems architectures, metrics for System of Systems performance and development, and interdependency features that must be addressed by analysis methods
- Define and translate the meaning of metrics for the System of Systems context and determine which metrics can be computed under which assumptions, for each candidate analysis method
- Develop instructive synthetic examples to test the analysis methods; look for case studies
- Define requirements for metrics against a variety of System of Systems types and patterns.
The approach for the second phase of the project was to “explore and refine”:
- Develop advancements in the Methods and Tools in the context of actual System of Systems processes and in support of activities and artifacts of the System of Systems SE Wave Model process
- Rerun studies and engage experts to evaluate efficacy of alternate analysis methods
The approach for the third phase of the project is based on definition and refinement of the System of Systems Analytic Workbench:
- Refinement of methods, processes, tools and tool interface based on feedback and collaborator driven requirements from initial demo workbench deployment in first 6-month phase.
- Continued fulfillment of agreed upon exchange with NSWCDD based on signed MOU
- Explore options for deployment of refined version of demo tools for collaborator/DoD sponsor community use
- Technical Report SERC-2012-TR-035-1, December 31, 2012
- Technical Report SERC-2013-TR-035-2, March 4, 2013
- Technical Report SERC-2013-TR-035-3, December 19, 2013
- Technical Report SERC-2014-TR-035-4, November 30, 2014
- Technical Report SERC-2015-RT-134, November 30, 2015
- Supporting design via the System Operational Dependency Analysis methodology: Journal paper, submitted to Research in Engineering Design. It describes SODA methodology, mathematical model, and steps to apply SODA analysis.
- Systems Developmental Dependency Analysis for Schedule and Decision Support: Journal paper, under review for submission to Management Science. It describes SDDA methodology, mathematical model, and applications of SDDA analysis.
- Payuna Uday and Karen Marais, “Designing Resilient Systems-of-Systems: A Survey of Metrics, Methods, and Challenges”, Systems Engineering, Available online: 23 Nov 2015. http://dx.doi.org/10.1002/sys.21325
- Multi-Stakeholder Dynamic Planning of System of Systems Development and Evolution: Conference on Systems Engineering Research (CSER) 2015.
- A Conditional Value-at-Risk Approach to Risk Management in System-of-Systems Architectures (IEEE SoSE) 2015[/toggle]
- Code documentation
- SODA_GUI_Manual: description of the Graphic User Interface for SODA analysis, including possible inputs, choice of methods, resulting plots, output files.
- SDDA_GUI_Manual: description of the Graphic User Interface for SDDA analysis, including possible inputs, choice of methods, resulting plots, output files.
- RPO_Manual_New_Version: description of Graphic User Interface for Robust Portfolio Optimization toolset, including required inputs, choice of methods, output numbers and plots and other pertinent information.
- MUSTDO_GUI_Manual.docx: description of the Graphic User Interface for MUSTDO framework, including possible inputs and resulting plots.
- Technical Summaries of Methods
- SIMS: Development and Initial Implementation of SIMs, UdayEtAlNov2015.pdf
- SODA/SDDA: presentation of the basics of SODA and SDDA, including motivation, goals, and applications.
- RPO: presentation on basics of 3 RPO sub-methods, including motivation, goals and applications.
o MUSTDO: summary of the MUSTDO methodology, including motivation, method description and applications.
- SIMS: Development and Initial Implementation of SIMs, UdayEtAlNov2015.pdf
- Technical Report SERC-2017-TR-102, February 24, 2017
- Access to the NanoHub and the AWB Toolsets is located at: http://nanohub.org/resources/plottool.
- Technical Report SERC-2017-TR-112, August 31, 2017
Application: The research is being applied to the following:
- Exploratory studies of a naval warfare scenario employing the Littoral Combat Ship (LCS) and related systems in alternate System of Systems architectures
- Case study (currently underway) of System of Systems AWB application to support MSCI Always-On Support of Army ODENN FY15 event, and, Army Research Lab (ARL) EASE
- Pending case study application based on soon to be ratified CRADA agreement with NSWCDD
- Han, S., DeLaurentis, D. “Development Interdependency Modeling for System-of-Systems (SoS) using Bayesian Networks: System of Systems Management Strategy Planning”, 11th Annual Conference on Systems Engineering Research (CSER), March 19-22, 2013, Atlanta, GA
- Guariniello, C., DeLaurentis, D. “An Approach to Facilitate Decision Making on Architecture Evolution Strategies”, 11th Annual Conference on Systems Engineering Research (CSER), March 19-22, 2013, Atlanta, GA
- Fang, Z., DeLaurentis, D. “Dependency-Analysis of System-of-System Operational and Development Networks”, 11th Annual Conference on Systems Engineering Research (CSER), March 19-22, 2013, Atlanta, GA
- Davendralingam, N., DeLaurentis, D. “A Robust Optimization Framework to Architecting System-of-Systems”, 11th Annual Conference on Systems Engineering Research (CSER), March 19-22, 2013, Atlanta, GA
- Uday, P., Marais, K. “Exploiting Stand-in Redundancy to Improve Resilience in a System-of-Systems (SoS)”, 11th Annual Conference on Systems Engineering Research (CSER), March 19-22, 2013, Atlanta, GA
- Davendralingam, N., DeLaurentis, D. “An Analytic Portfolio Approach to System of Systems Evolutions”, Conference on Systems Engineering Research (CSER 2014), March 21-22, 2014
- Guariniello, C., DeLaurentis, D. “Communications, information, and cyber security in Systems-of-Systems: Assessing the impact of attacks through interdependency analysis”, Conference on Systems Engineering Research (CSER 2014), March 21-22, 2014, Redondo Beach, CA
- Fang, Z., DeLaurentis, D., “Dynamic Planning of System of Systems Architecture Evolution”, Conference on Systems Engineering Research (CSER 2014), March 21-22, 2014 [Best Student Paper Award]
- Guariniello, C., DeLaurentis, D., “Integrated Analysis of Functional and Developmental Interdependencies to Quantify and Trade-off Ilities for System-of-Systems Design, Architecture, and Evolution”, Conference on Systems Engineering Research (CSER 2014), March 21-22, 2014
- Udaya, P., Maraisa, K., “Resilience Based System Importance Measures for System-of-Systems”, Conference on Systems Engineering Research (CSER 2014), March 21-22, 2014
- Davendralingam, N., DeLaurentis, D., Fang, Z., Guariniello, C., Yeob Han, S., Marais, K., Mour, A., Uday, P., “An Analytic Workbench Perspective to Evolution of System of System Architecture”, Conference on Systems Engineering Research (CSER 2014), March 21-22, 2014
► Research Team
Current Research Team:
- Dr. Karen Marais(PI)
- Dr. Daniel A. DeLaurentis (Co-PI)
- Dr. Navindran Davendralingam
- Dr. Cesare Guariniello (Research Associate)
- Zhemei Fang (PhD Candidate)
- Rakshit Chandrahasa (Graduate Student)
Past Research Team:
- Demetrios Katsaduros
- Yiqing Ding
- Parth ShahSeung Yeob Han
- Ankur Mour
- Payuna Uday