Pub Date : 2004-12-05DOI: 10.1109/WSC.2004.1371556
M. Kuhl, J. Christopher
A critical aspect of semiconductor manufacturing is the design and analysis of material handling and production control polices to optimize fab performance. As wafer sizes have increased, semiconductor fabs have moved toward the use of automated material handling systems (AMHS). However, the behavior of AMHS and the effects of AMHS on fab productivity is not well understood. This research involves the development of a design and analysis methodology for evaluating the throughput capacity of AMHS. A set of simulation experiments is used to evaluate the throughput capacity of an AMHS and the effects on fab performance measures. The analysis uses SEMATECH fab data for full semiconductor fabs to evaluate the AMHS throughput capacity.
{"title":"Capacity analysis of automated material handling systems in semiconductor fabs","authors":"M. Kuhl, J. Christopher","doi":"10.1109/WSC.2004.1371556","DOIUrl":"https://doi.org/10.1109/WSC.2004.1371556","url":null,"abstract":"A critical aspect of semiconductor manufacturing is the design and analysis of material handling and production control polices to optimize fab performance. As wafer sizes have increased, semiconductor fabs have moved toward the use of automated material handling systems (AMHS). However, the behavior of AMHS and the effects of AMHS on fab productivity is not well understood. This research involves the development of a design and analysis methodology for evaluating the throughput capacity of AMHS. A set of simulation experiments is used to evaluate the throughput capacity of an AMHS and the effects on fab performance measures. The analysis uses SEMATECH fab data for full semiconductor fabs to evaluate the AMHS throughput capacity.","PeriodicalId":287132,"journal":{"name":"Online World Conference on Soft Computing in Industrial Applications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130731562","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}
Simulation plays a vital role in identifying the best system design from among a set of competing designs. To improve simulation efficiency, ranking and selection techniques are often used to determine the number of simulation replications required so that a pre-specified level of correct selection is guaranteed at a modest possible computational expense. As most real-life systems are multi-objective in nature, in this paper, we consider a multi-objective ranking and selection problem, where the system designs are evaluated in terms of more than one performance measure. We incorporate the concept of Pareto optimality into the ranking and selection scheme, and try to find all of the non-dominated designs rather than a single "best" one. A simple sequential solution method is proposed to allocate the simulation replications. Computational results show that the proposed algorithm is efficient in terms of the total number of replications needed to find the Pareto set.
{"title":"Optimal computing budget allocation for multi-objective simulation models","authors":"L. Lee, E. P. Chew, S. Teng, D. Goldsman","doi":"10.5555/1161734.1161843","DOIUrl":"https://doi.org/10.5555/1161734.1161843","url":null,"abstract":"Simulation plays a vital role in identifying the best system design from among a set of competing designs. To improve simulation efficiency, ranking and selection techniques are often used to determine the number of simulation replications required so that a pre-specified level of correct selection is guaranteed at a modest possible computational expense. As most real-life systems are multi-objective in nature, in this paper, we consider a multi-objective ranking and selection problem, where the system designs are evaluated in terms of more than one performance measure. We incorporate the concept of Pareto optimality into the ranking and selection scheme, and try to find all of the non-dominated designs rather than a single \"best\" one. A simple sequential solution method is proposed to allocate the simulation replications. Computational results show that the proposed algorithm is efficient in terms of the total number of replications needed to find the Pareto set.","PeriodicalId":287132,"journal":{"name":"Online World Conference on Soft Computing in Industrial Applications","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115942660","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 : 2004-12-05DOI: 10.1109/WSC.2004.1371462
R. Watson, Y. Kwak
The purpose of this paper is to define the process used to develop a parametric estimating model and to explain the use of the model as it allows a non subject matter expert to predict the cost of deployment of a technology-driven project with improved accuracy.The overall objective is to define criteria for organizations to use as a rule of thumb estimating model for determining potential resource requirements during the pre-concept and concept phase of a technology-driven project.The use of the model will determine the complexity level of a project and then using a matrix simulating the task complexity knowledge of a deployment subject matter expert, the organization deployment resource required will be estimated based upon responses to certain inquiries. The user of the model will then have the capability to modify the output to derive their specific deployment estimates.
{"title":"Development of a parametric estimating model for technology-driven deployment projects","authors":"R. Watson, Y. Kwak","doi":"10.1109/WSC.2004.1371462","DOIUrl":"https://doi.org/10.1109/WSC.2004.1371462","url":null,"abstract":"The purpose of this paper is to define the process used to develop a parametric estimating model and to explain the use of the model as it allows a non subject matter expert to predict the cost of deployment of a technology-driven project with improved accuracy.The overall objective is to define criteria for organizations to use as a rule of thumb estimating model for determining potential resource requirements during the pre-concept and concept phase of a technology-driven project.The use of the model will determine the complexity level of a project and then using a matrix simulating the task complexity knowledge of a deployment subject matter expert, the organization deployment resource required will be estimated based upon responses to certain inquiries. The user of the model will then have the capability to modify the output to derive their specific deployment estimates.","PeriodicalId":287132,"journal":{"name":"Online World Conference on Soft Computing in Industrial Applications","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133961435","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}
Rainer Guttkuhn, Todd Dawson, U. Trutschel, Jon Walker, M. Moroz
This paper introduces a discrete event simulation for crew assignments and crew movements as a result of train traffic, labor rules, government regulations and optional crew schedules. The software is part of a schedule development system, FRCOS (Freight Rail Crew Optimization System), that was co-developed by Canadian National (CN) Rail and Circadian Technologies, Inc. The simulation allows verification of the impact of changes to trainflow, labor rules or government regulations on the overall operational efficiency of how crews are called to work. The system helps to evaluate changes to current crew assignments and can test new crew assignment scenarios such as crew schedules. Potential problems can be detected before the actual implementation, saving unnecessary costs. The software is also used to assess the impact of traffic changes on existing crew schedules in order to implement reactive corrections to these schedules.
{"title":"Simulation planning and rostering: a discrete event simulation for the crew assignment process in north american freight railroads","authors":"Rainer Guttkuhn, Todd Dawson, U. Trutschel, Jon Walker, M. Moroz","doi":"10.5555/1030818.1031048","DOIUrl":"https://doi.org/10.5555/1030818.1031048","url":null,"abstract":"This paper introduces a discrete event simulation for crew assignments and crew movements as a result of train traffic, labor rules, government regulations and optional crew schedules. The software is part of a schedule development system, FRCOS (Freight Rail Crew Optimization System), that was co-developed by Canadian National (CN) Rail and Circadian Technologies, Inc. The simulation allows verification of the impact of changes to trainflow, labor rules or government regulations on the overall operational efficiency of how crews are called to work. The system helps to evaluate changes to current crew assignments and can test new crew assignment scenarios such as crew schedules. Potential problems can be detected before the actual implementation, saving unnecessary costs. The software is also used to assess the impact of traffic changes on existing crew schedules in order to implement reactive corrections to these schedules.","PeriodicalId":287132,"journal":{"name":"Online World Conference on Soft Computing in Industrial Applications","volume":"111 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124051819","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}
We are developing interactive simulations of the National Institute of Standards and Technology (NIST) Reference Test Facility for Autonomous Mobile Robots (Urban Search and Rescue). The NIST USAR Test Facility is a standardized disaster environment consisting of three scenarios of progressive difficulty: Yellow, Orange, and Red arenas. The USAR task focuses on robot behaviors, and physical interaction with standardized but disorderly rubble filled environments. The simulation will be used to test and evaluate designs for teleoperation interfaces and robot sensing and cooperation that will subsequently be incorporated into experimental robots. This paper describes our novel simulation approach using an inexpensive game engine to rapidly construct a visually and dynamically accurate simulation for both individual robots and robot teams.
{"title":"Emerging areas: urban operations and UCAVs: a game engine based simulation of the NIST urban search and rescue arenas","authors":"Jijun Wang, M. Lewis, J. Gennari","doi":"10.5555/1030818.1030956","DOIUrl":"https://doi.org/10.5555/1030818.1030956","url":null,"abstract":"We are developing interactive simulations of the National Institute of Standards and Technology (NIST) Reference Test Facility for Autonomous Mobile Robots (Urban Search and Rescue). The NIST USAR Test Facility is a standardized disaster environment consisting of three scenarios of progressive difficulty: Yellow, Orange, and Red arenas. The USAR task focuses on robot behaviors, and physical interaction with standardized but disorderly rubble filled environments. The simulation will be used to test and evaluate designs for teleoperation interfaces and robot sensing and cooperation that will subsequently be incorporated into experimental robots. This paper describes our novel simulation approach using an inexpensive game engine to rapidly construct a visually and dynamically accurate simulation for both individual robots and robot teams.","PeriodicalId":287132,"journal":{"name":"Online World Conference on Soft Computing in Industrial Applications","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134033562","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}
Business Process (BP) literature promotes the value of business processes as essential gearwheels that help organizations to reach their goals. Similarly, many process design approaches claim that Information Technology (IT) is a major enabler of business process, a view also shared by the Information Systems (IS) community. Despite this, BP and IS approaches do not provide clear guidance on how to assess the benefits that a given IS design may bring to the BP prior the IS implementation. Nor is clear indication of which modeling techniques could be used to assess such relationship. This paper uses the insights gained during a UK funded research project, namely ASSESS-IT, that aimed to depict the dynamic relationships between BP and IT to propose an alternative framework to develop BP simulation models that depict the dynamic behavior of the relationships between BP and IS.
{"title":"The process of process reengineering: simulation for business processes and information systems design","authors":"R. Paul, A. Serrano","doi":"10.5555/1030818.1031063","DOIUrl":"https://doi.org/10.5555/1030818.1031063","url":null,"abstract":"Business Process (BP) literature promotes the value of business processes as essential gearwheels that help organizations to reach their goals. Similarly, many process design approaches claim that Information Technology (IT) is a major enabler of business process, a view also shared by the Information Systems (IS) community. Despite this, BP and IS approaches do not provide clear guidance on how to assess the benefits that a given IS design may bring to the BP prior the IS implementation. Nor is clear indication of which modeling techniques could be used to assess such relationship. This paper uses the insights gained during a UK funded research project, namely ASSESS-IT, that aimed to depict the dynamic relationships between BP and IT to propose an alternative framework to develop BP simulation models that depict the dynamic behavior of the relationships between BP and IS.","PeriodicalId":287132,"journal":{"name":"Online World Conference on Soft Computing in Industrial Applications","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115647627","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}
L. Rabelo, M. Helal, Albert T. Jones, Jason Min, Y. Son, A. Deshmukh
Manufacturing enterprise decisions can be classified into four groups: business decisions, design decisions. engineering decisions, and production decisions. Numerous physical and software simulation techniques have been used to evaluate specific decisions by predicting their impact on the system as measured by one or more performance measures. In this paper, we focus on production decisions, where discrete-event simulation models perform that evaluation. We argue that such an evaluation is limited in time and scope, and does not capture the potential impact of these decisions on the whole enterprise. We propose integrating these discrete-event models with system dynamic models and we show the potential benefits of such an integration using an example of semiconductor enterprise.
{"title":"New manufacturing modeling methodology: a hybrid approach to manufacturing enterprise simulation","authors":"L. Rabelo, M. Helal, Albert T. Jones, Jason Min, Y. Son, A. Deshmukh","doi":"10.5555/1030818.1030968","DOIUrl":"https://doi.org/10.5555/1030818.1030968","url":null,"abstract":"Manufacturing enterprise decisions can be classified into four groups: business decisions, design decisions. engineering decisions, and production decisions. Numerous physical and software simulation techniques have been used to evaluate specific decisions by predicting their impact on the system as measured by one or more performance measures. In this paper, we focus on production decisions, where discrete-event simulation models perform that evaluation. We argue that such an evaluation is limited in time and scope, and does not capture the potential impact of these decisions on the whole enterprise. We propose integrating these discrete-event models with system dynamic models and we show the potential benefits of such an integration using an example of semiconductor enterprise.","PeriodicalId":287132,"journal":{"name":"Online World Conference on Soft Computing in Industrial Applications","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121954158","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}
As the Army undergoes a transformation from the logistics intensive organizations that currently comprise the force to a more agile and sustainable force, changes in logistics concepts and organizations are inevitable. Because much of the Army's future equipment and most future organizations are still in the conceptual stages, these elements must be modeled. Simulation provides a valuable tool for not only modeling the structure or attributes of a future system, but also for comparing alternative concepts for how systems should be employed and equipped. In this paper, we present three applications of how simulation was used within the U.S. Army Combined Arms Support Command in the design and analysis of current and emerging logistical systems in the Army.
{"title":"Logistics 2: applications of simulation in logistics combat developments","authors":"G. H. Graves, J. L. Higgins","doi":"10.5555/1030453.1030582","DOIUrl":"https://doi.org/10.5555/1030453.1030582","url":null,"abstract":"As the Army undergoes a transformation from the logistics intensive organizations that currently comprise the force to a more agile and sustainable force, changes in logistics concepts and organizations are inevitable. Because much of the Army's future equipment and most future organizations are still in the conceptual stages, these elements must be modeled. Simulation provides a valuable tool for not only modeling the structure or attributes of a future system, but also for comparing alternative concepts for how systems should be employed and equipped. In this paper, we present three applications of how simulation was used within the U.S. Army Combined Arms Support Command in the design and analysis of current and emerging logistical systems in the Army.","PeriodicalId":287132,"journal":{"name":"Online World Conference on Soft Computing in Industrial Applications","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125841691","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}
A. Muzy, E. Innocenti, A. Aiello, J. Santucci, Gabriel A. Wainer
We present the use of the CD++ tool to model and simulate forest fire-spread. A semi-physical fire spread model is implemented using the Cell-DEVS formalism. The use of Cell-DEVS enables proving the correctness of the simulation engines and permits to model the problem even by a non-computer science specialist. The high level language of CD++ reduces the algorithmic complexity for the modeler while allowing complex cellular timing behaviors. Different Cell-DEVS quantization techniques are used and developed to decrease execution time. The study is realized regarding time improvement and trades-off between model evolution, simulation time and incurred error. Finally, based on experimentations, interesting perspectives are defined to develop new quantization techniques.
{"title":"Methods for special applications: Cell-DEVS quantization techniques in a fire spreading application","authors":"A. Muzy, E. Innocenti, A. Aiello, J. Santucci, Gabriel A. Wainer","doi":"10.5555/1030453.1030529","DOIUrl":"https://doi.org/10.5555/1030453.1030529","url":null,"abstract":"We present the use of the CD++ tool to model and simulate forest fire-spread. A semi-physical fire spread model is implemented using the Cell-DEVS formalism. The use of Cell-DEVS enables proving the correctness of the simulation engines and permits to model the problem even by a non-computer science specialist. The high level language of CD++ reduces the algorithmic complexity for the modeler while allowing complex cellular timing behaviors. Different Cell-DEVS quantization techniques are used and developed to decrease execution time. The study is realized regarding time improvement and trades-off between model evolution, simulation time and incurred error. Finally, based on experimentations, interesting perspectives are defined to develop new quantization techniques.","PeriodicalId":287132,"journal":{"name":"Online World Conference on Soft Computing in Industrial Applications","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115715048","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}
Internet based virtual reality offers the opportunity to render content in three dimensions. In addition, the Internet provides a medium to support collaborative activities. In this work, we describe how collaborative capabilities are integrated into the Interactive Land use VRML Application (ILUVA). ILUVA is a VRML based application that supports highly interactive functionality, live updates, and the dynamic generation of VRML content. The collaborative functions have been added in the context of an Internet chat session in which multiple users may participate from the Internet. In addition to the usual functions supported by chat applications, user information sharing is supported. The union or intersection of sessions from different users may be produced and reviewed in the world.
{"title":"Virtual worlds: VRML clients linked through concurrent chat","authors":"L. Belfore, S. Battula","doi":"10.5555/1030453.1030525","DOIUrl":"https://doi.org/10.5555/1030453.1030525","url":null,"abstract":"Internet based virtual reality offers the opportunity to render content in three dimensions. In addition, the Internet provides a medium to support collaborative activities. In this work, we describe how collaborative capabilities are integrated into the Interactive Land use VRML Application (ILUVA). ILUVA is a VRML based application that supports highly interactive functionality, live updates, and the dynamic generation of VRML content. The collaborative functions have been added in the context of an Internet chat session in which multiple users may participate from the Internet. In addition to the usual functions supported by chat applications, user information sharing is supported. The union or intersection of sessions from different users may be produced and reviewed in the world.","PeriodicalId":287132,"journal":{"name":"Online World Conference on Soft Computing in Industrial Applications","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120960028","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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