Pub Date : 2011-04-04DOI: 10.1109/SYSCON.2011.5929079
A. Kwasinski
This paper discusses the role of local energy storage in decoupling interdependent infrastructures within a system-of-systems. In order to quantify the effect that interdependencies have on a given infrastructure supporting a system that belongs to the system-of-systems, its availability is analyzed by dividing failure modes in those originated by system component failures and those caused by external influences to the system, i.e., from interdependencies. The effect that added energy storage has on availability is used in order to evaluate the degree of interdependencies among infrastructures. The analysis focuses on conventional communication sites infrastructure because it present an interesting case of interdependencies with two other infrastructures: roads and a power grid. In this system-of-systems, locally stored energy in the form of diesel for a generator set plays an important role in decoupling interdependencies among these three infrastructures. Influence of operational modes are also considered because different operational modes—e.g., continuous operation after a disaster or standby operation in normal conditions—affects the effect of interdependencies on system availability.
{"title":"Local energy storage as a decoupling mechanism for interdependent infrastructures","authors":"A. Kwasinski","doi":"10.1109/SYSCON.2011.5929079","DOIUrl":"https://doi.org/10.1109/SYSCON.2011.5929079","url":null,"abstract":"This paper discusses the role of local energy storage in decoupling interdependent infrastructures within a system-of-systems. In order to quantify the effect that interdependencies have on a given infrastructure supporting a system that belongs to the system-of-systems, its availability is analyzed by dividing failure modes in those originated by system component failures and those caused by external influences to the system, i.e., from interdependencies. The effect that added energy storage has on availability is used in order to evaluate the degree of interdependencies among infrastructures. The analysis focuses on conventional communication sites infrastructure because it present an interesting case of interdependencies with two other infrastructures: roads and a power grid. In this system-of-systems, locally stored energy in the form of diesel for a generator set plays an important role in decoupling interdependencies among these three infrastructures. Influence of operational modes are also considered because different operational modes—e.g., continuous operation after a disaster or standby operation in normal conditions—affects the effect of interdependencies on system availability.","PeriodicalId":109868,"journal":{"name":"2011 IEEE International Systems Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131264819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-04-04DOI: 10.1109/SYSCON.2011.5929120
S. White, J. Owens
Few researchers have addressed human variability in process modeling or in process centered environments, even though such variability can have a major effect on system development. It is well known that influences, both internal and external to a person, can affect situation assessment and decision making in operational situations. In this paper, variables are defined that can act internally or externally to affect situation assessment and decision making during system engineering. The method for specifying the variance in these variables is consistent with the principles of the selected process modeling paradigm. Multiple states and state values are attached to the variables, and methods to alter the influence of simulated variables on individual and team behavior during system development are proposed.
{"title":"Developing complex systems - Incorporating human variability into the process","authors":"S. White, J. Owens","doi":"10.1109/SYSCON.2011.5929120","DOIUrl":"https://doi.org/10.1109/SYSCON.2011.5929120","url":null,"abstract":"Few researchers have addressed human variability in process modeling or in process centered environments, even though such variability can have a major effect on system development. It is well known that influences, both internal and external to a person, can affect situation assessment and decision making in operational situations. In this paper, variables are defined that can act internally or externally to affect situation assessment and decision making during system engineering. The method for specifying the variance in these variables is consistent with the principles of the selected process modeling paradigm. Multiple states and state values are attached to the variables, and methods to alter the influence of simulated variables on individual and team behavior during system development are proposed.","PeriodicalId":109868,"journal":{"name":"2011 IEEE International Systems Conference","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126498260","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-04-04DOI: 10.1109/SYSCON.2011.5929085
V. Ebrahimipour, A. Haeri, M. Sheikhalishahi, S. M. Asadzadeh
Reliability Redundancy Allocation Problem (RRAP) is a major problem in engineering design practices. RRAP includes two major concerns that are specifying the redundancy level and the reliability of each component. The purpose of this approach is to increase reliability level of system by considering related constraints. In this article a multi-objective RRAP comprising of reliability and cost as objective functions is studied. In this study, the discount rate for cost of the components is taken into account. Reliability level of each component is regarded as a triangular fuzzy number as well, and a fuzzy multi-objective optimization problem is developed to handle this issue. Then, the expected value concept is used to convert developed model to a crisp model. Finally, multi-objective particle swarm optimization (MOPSO) is applied to solve the crisp model.
{"title":"Application of multi-objective particle swarm optimization to solve a fuzzy multi-objective reliability redundancy allocation problem","authors":"V. Ebrahimipour, A. Haeri, M. Sheikhalishahi, S. M. Asadzadeh","doi":"10.1109/SYSCON.2011.5929085","DOIUrl":"https://doi.org/10.1109/SYSCON.2011.5929085","url":null,"abstract":"Reliability Redundancy Allocation Problem (RRAP) is a major problem in engineering design practices. RRAP includes two major concerns that are specifying the redundancy level and the reliability of each component. The purpose of this approach is to increase reliability level of system by considering related constraints. In this article a multi-objective RRAP comprising of reliability and cost as objective functions is studied. In this study, the discount rate for cost of the components is taken into account. Reliability level of each component is regarded as a triangular fuzzy number as well, and a fuzzy multi-objective optimization problem is developed to handle this issue. Then, the expected value concept is used to convert developed model to a crisp model. Finally, multi-objective particle swarm optimization (MOPSO) is applied to solve the crisp model.","PeriodicalId":109868,"journal":{"name":"2011 IEEE International Systems Conference","volume":"122 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134618821","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-04-04DOI: 10.1109/SYSCON.2011.5929095
B. Farroha, D. Farroha
This paper analyzes secure data sharing outside the security domain. There is a high demand for accessing multiple levels of sensitive data at the edge; however the threat at that location is higher compared to the core enterprise environment. This paper investigates the requirements, technologies and risk mitigation techniques for securely sharing information with the tactical user while protecting the data and the information systems from intruders and malware. The new Enterprise Architecture needs to eliminate the stovepipe architectures and open the doors to share information across traditional and non-traditional domain boundaries.
{"title":"Architecting a secure enterprise data sharing environment to the edge","authors":"B. Farroha, D. Farroha","doi":"10.1109/SYSCON.2011.5929095","DOIUrl":"https://doi.org/10.1109/SYSCON.2011.5929095","url":null,"abstract":"This paper analyzes secure data sharing outside the security domain. There is a high demand for accessing multiple levels of sensitive data at the edge; however the threat at that location is higher compared to the core enterprise environment. This paper investigates the requirements, technologies and risk mitigation techniques for securely sharing information with the tactical user while protecting the data and the information systems from intruders and malware. The new Enterprise Architecture needs to eliminate the stovepipe architectures and open the doors to share information across traditional and non-traditional domain boundaries.","PeriodicalId":109868,"journal":{"name":"2011 IEEE International Systems Conference","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133844312","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-04-04DOI: 10.1109/SYSCON.2011.5929126
S. Tilley
This paper reports on the activities and findings from the 5th and 6th international workshops on adoption-centric software engineering (ACSWE), which were held in 2009 and 2010, respectively. The two workshops had a common theme of migrating to SOA. The overall goal of the workshops was to distill lessons learned from SOA migration case studies and experience reports from several application areas.
{"title":"Report from the 5th and 6th international workshops on adoption-centric software engineering: Migrating to SOA","authors":"S. Tilley","doi":"10.1109/SYSCON.2011.5929126","DOIUrl":"https://doi.org/10.1109/SYSCON.2011.5929126","url":null,"abstract":"This paper reports on the activities and findings from the 5th and 6th international workshops on adoption-centric software engineering (ACSWE), which were held in 2009 and 2010, respectively. The two workshops had a common theme of migrating to SOA. The overall goal of the workshops was to distill lessons learned from SOA migration case studies and experience reports from several application areas.","PeriodicalId":109868,"journal":{"name":"2011 IEEE International Systems Conference","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123815345","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-04-04DOI: 10.1109/SYSCON.2011.5929109
Qing Li, B. Sauser, J. Ramírez-Márquez
Zeroth Responders are defined as the individuals who respond spontaneously prior to a coordinated response group. Their influence in both natural and man-made disaster response has been drawing attention to an increasing number of governmental, private and communities' stakeholders. To effectively evaluate the influence of Zeroth Responder, and to better understand the challenge stated in the 2010 Department of Homeland Security (DHS) Quadrennial Homeland Security Review Report (QHSR): “neighbor-to-neighbor assistance, when done safely, decreases the burden on first responders, and individuals should be seen as force multipliers who may also offer specialized knowledge and skills”, this paper develops a quantitative resilience model that can be used to compute resilience figures-of-merit with focus of Zeroth Responders' influence on the Maritime Port Enterprise. An initial Small Vessel Security threat scenario “Use of Waterborne Improvised Explosive Devices (WBIED)” is modeled to quantify the resilience on a port transportation network.
{"title":"Analyzing the influence of Zeroth Responders on resilience of the Maritime Port Enterprise","authors":"Qing Li, B. Sauser, J. Ramírez-Márquez","doi":"10.1109/SYSCON.2011.5929109","DOIUrl":"https://doi.org/10.1109/SYSCON.2011.5929109","url":null,"abstract":"Zeroth Responders are defined as the individuals who respond spontaneously prior to a coordinated response group. Their influence in both natural and man-made disaster response has been drawing attention to an increasing number of governmental, private and communities' stakeholders. To effectively evaluate the influence of Zeroth Responder, and to better understand the challenge stated in the 2010 Department of Homeland Security (DHS) Quadrennial Homeland Security Review Report (QHSR): “neighbor-to-neighbor assistance, when done safely, decreases the burden on first responders, and individuals should be seen as force multipliers who may also offer specialized knowledge and skills”, this paper develops a quantitative resilience model that can be used to compute resilience figures-of-merit with focus of Zeroth Responders' influence on the Maritime Port Enterprise. An initial Small Vessel Security threat scenario “Use of Waterborne Improvised Explosive Devices (WBIED)” is modeled to quantify the resilience on a port transportation network.","PeriodicalId":109868,"journal":{"name":"2011 IEEE International Systems Conference","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131418132","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-04-04DOI: 10.1109/SYSCON.2011.5929076
M. M. Tousi
The problem of productivity evaluation and systematic decision making in strategic management on an organization is tackled in this paper by employing control system methodologies. A novel approach is proposed to transform a performance evaluation problem in management domain into a fault diagnosis problem in control system domain. Then, a solution for the resulting fault diagnosis problem is provided by taking advantage of control system theories for fault detection and isolation.
{"title":"An application of control system in strategic management","authors":"M. M. Tousi","doi":"10.1109/SYSCON.2011.5929076","DOIUrl":"https://doi.org/10.1109/SYSCON.2011.5929076","url":null,"abstract":"The problem of productivity evaluation and systematic decision making in strategic management on an organization is tackled in this paper by employing control system methodologies. A novel approach is proposed to transform a performance evaluation problem in management domain into a fault diagnosis problem in control system domain. Then, a solution for the resulting fault diagnosis problem is provided by taking advantage of control system theories for fault detection and isolation.","PeriodicalId":109868,"journal":{"name":"2011 IEEE International Systems Conference","volume":"117 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133664346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-04-04DOI: 10.1109/SYSCON.2011.5929107
S. Wadoo
In this paper the design of nonlinear sliding mode feedback controller for a model representing crowd dynamics is presented. The model is a system of partial differential equations based on the laws of conservation of mass and momentum. The equations of motion are described by a set of nonlinear hyperbolic partial differential equations. The feedback control is designed in presence of both matched and unmatched uncertainties due to external disturbance. The goal is to design a controller so as to minimize the effect of uncertainties on the movement of people. The control design method adopted is feedback linearization and sliding mode.
{"title":"Sliding mode control of crowd dynamics with matched disturbance","authors":"S. Wadoo","doi":"10.1109/SYSCON.2011.5929107","DOIUrl":"https://doi.org/10.1109/SYSCON.2011.5929107","url":null,"abstract":"In this paper the design of nonlinear sliding mode feedback controller for a model representing crowd dynamics is presented. The model is a system of partial differential equations based on the laws of conservation of mass and momentum. The equations of motion are described by a set of nonlinear hyperbolic partial differential equations. The feedback control is designed in presence of both matched and unmatched uncertainties due to external disturbance. The goal is to design a controller so as to minimize the effect of uncertainties on the movement of people. The control design method adopted is feedback linearization and sliding mode.","PeriodicalId":109868,"journal":{"name":"2011 IEEE International Systems Conference","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123938896","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-04-04DOI: 10.1109/SYSCON.2011.5929087
C. Lewis, Ron Smith, A. Beaulieu
Complex systems-of-systems (SoS) requiring fault-tolerance and high reliability often require redundant systems. The concept of redundancy that includes components with differing failure modes is well understood in the realm of hardware design. N-version programming, although shown to produce significant gains in software reliability over single-version fault tolerant techniques, is not widely accepted or applied. This is due, in part, to N-version programming's lengthy development time and its inherent problems with version independence. Model Driven Software Development (MDSD) is a process that promises gains in software productivity and quality. While progress in MDSD has witnessed the expansion of the supporting Unified Modeling Language profile for modeling fault tolerant characteristics, and the development of specific design patterns for the production of fault tolerant software, MDSD's support in the generation and testing of fault tolerant applications is not evident or explicitly defined. This paper discusses the development of a fault tolerant MDSD framework, which enables users to design, implement and test fault tolerant applications using the N-version modeling technique. The framework closes the gap between existing modeling patterns and the practical application of fault tolerant MDSD, and supports follow-on research to address specific questions relating to the benefits of MDSD within the fault tolerance software domain.
{"title":"A model driven framework for N-version programming","authors":"C. Lewis, Ron Smith, A. Beaulieu","doi":"10.1109/SYSCON.2011.5929087","DOIUrl":"https://doi.org/10.1109/SYSCON.2011.5929087","url":null,"abstract":"Complex systems-of-systems (SoS) requiring fault-tolerance and high reliability often require redundant systems. The concept of redundancy that includes components with differing failure modes is well understood in the realm of hardware design. N-version programming, although shown to produce significant gains in software reliability over single-version fault tolerant techniques, is not widely accepted or applied. This is due, in part, to N-version programming's lengthy development time and its inherent problems with version independence. Model Driven Software Development (MDSD) is a process that promises gains in software productivity and quality. While progress in MDSD has witnessed the expansion of the supporting Unified Modeling Language profile for modeling fault tolerant characteristics, and the development of specific design patterns for the production of fault tolerant software, MDSD's support in the generation and testing of fault tolerant applications is not evident or explicitly defined. This paper discusses the development of a fault tolerant MDSD framework, which enables users to design, implement and test fault tolerant applications using the N-version modeling technique. The framework closes the gap between existing modeling patterns and the practical application of fault tolerant MDSD, and supports follow-on research to address specific questions relating to the benefits of MDSD within the fault tolerance software domain.","PeriodicalId":109868,"journal":{"name":"2011 IEEE International Systems Conference","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124098807","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-04-04DOI: 10.1109/SYSCON.2011.5929078
Abideen Tetlay
This study has identified the need for a Framework for the assessment, evaluation and measurement of System Maturity, System Readiness and Capability Readiness for Systems and Networked System of Systems. The advantages and disadvantages of existing maturity and readiness assessments are presented; after undertaking a literature review to examine relevant research papers from both academia and industry.
{"title":"Need for a framework for the assessment, evaluation and measurement of System Maturity, System Readiness and Capability Readiness","authors":"Abideen Tetlay","doi":"10.1109/SYSCON.2011.5929078","DOIUrl":"https://doi.org/10.1109/SYSCON.2011.5929078","url":null,"abstract":"This study has identified the need for a Framework for the assessment, evaluation and measurement of System Maturity, System Readiness and Capability Readiness for Systems and Networked System of Systems. The advantages and disadvantages of existing maturity and readiness assessments are presented; after undertaking a literature review to examine relevant research papers from both academia and industry.","PeriodicalId":109868,"journal":{"name":"2011 IEEE International Systems Conference","volume":"140 32","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114076614","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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