Pub Date : 2020-10-30DOI: 10.1177/1063293X20958938
Jonas Landahl, R. Jiao, J. Madrid, R. Söderberg, H. Johannesson
To meet a wide range of customer needs, a variety of product concepts can be modeled employing a platform approach. Whereas frequent market changes can be accommodated by dynamically modifying product concepts in iterations, capabilities in production are seldom well incorporated as part of design iterations. In this paper, a dynamic platform modeling approach that supports concurrent product-production reconfiguration is presented. The approach builds on Set-Based Concurrent Engineering (SBCE) processes and a function modeling technique is used to represent product-production variety streams inherent in a production operation model. To demonstrate the approach, a comprehensive case from the aerospace industry is presented. Conceptual representations of a set of aero engine sub-systems and a variety of welding configurations, including their inherent constraints, are mutually modeled and assessed. The results show that a set of product-production alternatives can be dynamically controlled by integrating product-production constraints using a production operation model. Following SBCE processes, inferior alternatives can be put aside until new information becomes available and a new set of alternatives can be reconfigured. The dynamics and concurrency of the approach can potentially reduce the risk of late and costly modifications that propagate from design to production.
{"title":"Dynamic platform modeling for concurrent product-production reconfiguration","authors":"Jonas Landahl, R. Jiao, J. Madrid, R. Söderberg, H. Johannesson","doi":"10.1177/1063293X20958938","DOIUrl":"https://doi.org/10.1177/1063293X20958938","url":null,"abstract":"To meet a wide range of customer needs, a variety of product concepts can be modeled employing a platform approach. Whereas frequent market changes can be accommodated by dynamically modifying product concepts in iterations, capabilities in production are seldom well incorporated as part of design iterations. In this paper, a dynamic platform modeling approach that supports concurrent product-production reconfiguration is presented. The approach builds on Set-Based Concurrent Engineering (SBCE) processes and a function modeling technique is used to represent product-production variety streams inherent in a production operation model. To demonstrate the approach, a comprehensive case from the aerospace industry is presented. Conceptual representations of a set of aero engine sub-systems and a variety of welding configurations, including their inherent constraints, are mutually modeled and assessed. The results show that a set of product-production alternatives can be dynamically controlled by integrating product-production constraints using a production operation model. Following SBCE processes, inferior alternatives can be put aside until new information becomes available and a new set of alternatives can be reconfigured. The dynamics and concurrency of the approach can potentially reduce the risk of late and costly modifications that propagate from design to production.","PeriodicalId":10680,"journal":{"name":"Concurrent Engineering","volume":"1 1","pages":"102 - 123"},"PeriodicalIF":0.0,"publicationDate":"2020-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87888833","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 : 2020-10-22DOI: 10.1177/1063293X20963313
Jian Zhang, X. Chu, A. Simeone, P. Gu
Decision-making on design features such as specifications and components is an essential aspect of new product development. Customers product preferences and their variations provide the basis of design features decision. Big data of product sales are an emerging source for the obtaining of customers preferences on product features. In this work, a machine learning-based design features decision support tool is proposed through big sales data analysis. Customers preferred product features and their combinations are predicted based on the sales data. Physical feasibility of the product features combinations is considered for customers preference analysis. Cluster analysis method is proposed to identify common and alternative design of product features. Based on specification/component relationships, design features decisions of product components are carried out by grouping product component into noncritical, common, and alternative components. A case study on electric toy cars was included to illustrate the effectiveness of the proposed method.
{"title":"Machine learning-based design features decision support tool via customers purchasing data analysis","authors":"Jian Zhang, X. Chu, A. Simeone, P. Gu","doi":"10.1177/1063293X20963313","DOIUrl":"https://doi.org/10.1177/1063293X20963313","url":null,"abstract":"Decision-making on design features such as specifications and components is an essential aspect of new product development. Customers product preferences and their variations provide the basis of design features decision. Big data of product sales are an emerging source for the obtaining of customers preferences on product features. In this work, a machine learning-based design features decision support tool is proposed through big sales data analysis. Customers preferred product features and their combinations are predicted based on the sales data. Physical feasibility of the product features combinations is considered for customers preference analysis. Cluster analysis method is proposed to identify common and alternative design of product features. Based on specification/component relationships, design features decisions of product components are carried out by grouping product component into noncritical, common, and alternative components. A case study on electric toy cars was included to illustrate the effectiveness of the proposed method.","PeriodicalId":10680,"journal":{"name":"Concurrent Engineering","volume":"14 1","pages":"124 - 141"},"PeriodicalIF":0.0,"publicationDate":"2020-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84579607","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 : 2020-10-08DOI: 10.1177/1063293X20958932
Yang Zhang, Liuxu Li, Dongwen Zhang
Refactoring has become an effective approach to convert sequential programs into concurrent programs. Many refactoring algorithms and tools are proposed to assist developers in writing high-performance concurrent programs. Although researchers actively conduct surveys on refactoring, we are not aware of any survey that summarizes, categorizes and discusses concurrency-oriented refactoring. To this end, this paper presents a survey that investigates how refactoring assists with concurrent programming. To the best of our knowledge, this paper is the first survey that summarizes the state-of-the-art, concurrency-oriented refactoring. First, we design six research questions addressing the concurrent structure, programming language, performance improvement and consistency evaluation. Second, we answer these questions by examining the related papers and then present the results to show how refactoring provides support for concurrent programming after a decade of development, such as transforming the concurrent structures, supporting parallel language, and improving performance. Finally, we summarize the related works and present the future trends.
{"title":"A survey of concurrency-oriented refactoring","authors":"Yang Zhang, Liuxu Li, Dongwen Zhang","doi":"10.1177/1063293X20958932","DOIUrl":"https://doi.org/10.1177/1063293X20958932","url":null,"abstract":"Refactoring has become an effective approach to convert sequential programs into concurrent programs. Many refactoring algorithms and tools are proposed to assist developers in writing high-performance concurrent programs. Although researchers actively conduct surveys on refactoring, we are not aware of any survey that summarizes, categorizes and discusses concurrency-oriented refactoring. To this end, this paper presents a survey that investigates how refactoring assists with concurrent programming. To the best of our knowledge, this paper is the first survey that summarizes the state-of-the-art, concurrency-oriented refactoring. First, we design six research questions addressing the concurrent structure, programming language, performance improvement and consistency evaluation. Second, we answer these questions by examining the related papers and then present the results to show how refactoring provides support for concurrent programming after a decade of development, such as transforming the concurrent structures, supporting parallel language, and improving performance. Finally, we summarize the related works and present the future trends.","PeriodicalId":10680,"journal":{"name":"Concurrent Engineering","volume":"18 1","pages":"319 - 330"},"PeriodicalIF":0.0,"publicationDate":"2020-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79859345","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 : 2020-10-02DOI: 10.1177/1063293X20958937
Bo Guo, Fu-Shin Lee, Chen-I Lin, Yun-qing Lu
Manufacturing industries nowadays need to reconfigure their production lines promptly as to acclimate to rapid changing markets. Meanwhile, exercising system reconfigurations also needs to manage innumerous types of manufacturing apparatus involved. Nevertheless, traditional incompatible manufacturing systems delivered by exclusive vendors usually increase manufacture costs and prolong development time. This paper presents a novel RMS framework, which is intended to implement a Redis master/slave server mechanism to integrate various CNC manufacturing apparatus, hardware control means, and data exchange protocols through developed configurating codes. In the RMS framework each manufacturing apparatus or accessory stands for an object, and information of recognized CNC control panel image features, associated apparatus tuned parameters, communication formats, operation procedures, and control APIs, are stored into the Redis master cloud server database. Through implementation of machine vision techniques to acquire CNC controller panel images, the system effectively identifies instantaneous CNC machining states and response messages once the embedded image features are recognized. Upon demanding system reconfigurations for the manufacturing resources, the system issues commands from Redis local client servers to retrieve the stored information in the Redis master cloud servers, in which the resources for registered CNC machines, robots, and built-in accessories are maintained securely. The system then exploits the collected information locally to reconfigure involved manufacturing resources and starts manufacturing immediately, and thus is capable to promptly response to fast revised orders in a comitative market. In a prototyped RMS architecture, the proposed approach takes advantage of recognized feedback visual information, which is obtained using an invariant image feature extraction algorithm, and effectively commands an industrial robot to accomplish demanded actions on a CNC control panel, as a regular operator does daily in front of the CNC machine for manufacturing.
{"title":"A cloud integrated strategy for reconfigurable manufacturing systems","authors":"Bo Guo, Fu-Shin Lee, Chen-I Lin, Yun-qing Lu","doi":"10.1177/1063293X20958937","DOIUrl":"https://doi.org/10.1177/1063293X20958937","url":null,"abstract":"Manufacturing industries nowadays need to reconfigure their production lines promptly as to acclimate to rapid changing markets. Meanwhile, exercising system reconfigurations also needs to manage innumerous types of manufacturing apparatus involved. Nevertheless, traditional incompatible manufacturing systems delivered by exclusive vendors usually increase manufacture costs and prolong development time. This paper presents a novel RMS framework, which is intended to implement a Redis master/slave server mechanism to integrate various CNC manufacturing apparatus, hardware control means, and data exchange protocols through developed configurating codes. In the RMS framework each manufacturing apparatus or accessory stands for an object, and information of recognized CNC control panel image features, associated apparatus tuned parameters, communication formats, operation procedures, and control APIs, are stored into the Redis master cloud server database. Through implementation of machine vision techniques to acquire CNC controller panel images, the system effectively identifies instantaneous CNC machining states and response messages once the embedded image features are recognized. Upon demanding system reconfigurations for the manufacturing resources, the system issues commands from Redis local client servers to retrieve the stored information in the Redis master cloud servers, in which the resources for registered CNC machines, robots, and built-in accessories are maintained securely. The system then exploits the collected information locally to reconfigure involved manufacturing resources and starts manufacturing immediately, and thus is capable to promptly response to fast revised orders in a comitative market. In a prototyped RMS architecture, the proposed approach takes advantage of recognized feedback visual information, which is obtained using an invariant image feature extraction algorithm, and effectively commands an industrial robot to accomplish demanded actions on a CNC control panel, as a regular operator does daily in front of the CNC machine for manufacturing.","PeriodicalId":10680,"journal":{"name":"Concurrent Engineering","volume":"1 1","pages":"305 - 318"},"PeriodicalIF":0.0,"publicationDate":"2020-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88343537","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 : 2020-09-24DOI: 10.1177/1063293X20958541
Tena Žužek, J. Kušar, L. Rihar, T. Berlec
Agile development became very popular at the beginning of the 21st century when the Manifesto for Agile Software Development was released. Since then, it has been predominant in the software industry and has been increasingly transferred to the development of physical products due to its great success. There are many studies on Agile-Stage-Gate hybrids that combine agile Scrum and the traditional Stage-Gate model, however no research has been found that addresses a direct integration of Scrum into a concurrent product development model in a similar way. In this paper, we therefore examine the possibility of introducing Scrum into the concurrent product development and propose a Scrum framework for an Agile-Concurrent hybrid. We propose that the framework for concurrent development remains unchanged: the stages overlap and the track-and-loop approach is preserved, while Scrum is proposed for the execution of day-to-day work. The main advantage of the proposed hybrid is that after each iteration the customer reviews the results of an entire loop, not just of one stage, which enables a broader understanding of the progress and facilitates a more extensive feedback. A quicker resolution of discrepancies, and a faster and more effective response to change is thus ensured. In the paper, the needed organizational changes and potential implementation issues are also discussed.
{"title":"Agile-Concurrent hybrid: A framework for concurrent product development using Scrum","authors":"Tena Žužek, J. Kušar, L. Rihar, T. Berlec","doi":"10.1177/1063293X20958541","DOIUrl":"https://doi.org/10.1177/1063293X20958541","url":null,"abstract":"Agile development became very popular at the beginning of the 21st century when the Manifesto for Agile Software Development was released. Since then, it has been predominant in the software industry and has been increasingly transferred to the development of physical products due to its great success. There are many studies on Agile-Stage-Gate hybrids that combine agile Scrum and the traditional Stage-Gate model, however no research has been found that addresses a direct integration of Scrum into a concurrent product development model in a similar way. In this paper, we therefore examine the possibility of introducing Scrum into the concurrent product development and propose a Scrum framework for an Agile-Concurrent hybrid. We propose that the framework for concurrent development remains unchanged: the stages overlap and the track-and-loop approach is preserved, while Scrum is proposed for the execution of day-to-day work. The main advantage of the proposed hybrid is that after each iteration the customer reviews the results of an entire loop, not just of one stage, which enables a broader understanding of the progress and facilitates a more extensive feedback. A quicker resolution of discrepancies, and a faster and more effective response to change is thus ensured. In the paper, the needed organizational changes and potential implementation issues are also discussed.","PeriodicalId":10680,"journal":{"name":"Concurrent Engineering","volume":"52 1","pages":"255 - 264"},"PeriodicalIF":0.0,"publicationDate":"2020-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82733918","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 : 2020-09-24DOI: 10.1177/1063293X20958921
H. Chagraoui, M. Soula
The purpose of the present work is to improve the performance of the standard collaborative optimization (CO) approach based on an existing dynamic relaxation method. This approach may be weakened by starting design points. First, a New Relaxation (NR) method is proposed to solve the difficulties in convergence and low accuracy of CO. The new method is based on the existing dynamic relaxation method and it is achieved by changing the system-level consistency equality constraints into relaxation inequality constraints. Then, a Modified Collaborative Optimization (MCO) approach is proposed to eliminate the impact of the information inconsistency between the system-level and the discipline-level on the feasibility of optimal solutions. In the MCO approach, the impact of the inconsistency is treated by transforming the discipline-level constrained optimization problems into an unconstrained optimization problem using an exact penalty function. Based on the NR method, the performance of the MCO approach carried out by solving two multidisciplinary optimization problems. The obtained results show that the MCO approach has improved the convergence of CO significantly. These results prove that the present MCO succeeds in getting feasible solutions while the CO fails to provide feasible solutions with the used starting design points.
{"title":"Multidisciplinary collaborative optimization based on relaxation method for solving complex problems","authors":"H. Chagraoui, M. Soula","doi":"10.1177/1063293X20958921","DOIUrl":"https://doi.org/10.1177/1063293X20958921","url":null,"abstract":"The purpose of the present work is to improve the performance of the standard collaborative optimization (CO) approach based on an existing dynamic relaxation method. This approach may be weakened by starting design points. First, a New Relaxation (NR) method is proposed to solve the difficulties in convergence and low accuracy of CO. The new method is based on the existing dynamic relaxation method and it is achieved by changing the system-level consistency equality constraints into relaxation inequality constraints. Then, a Modified Collaborative Optimization (MCO) approach is proposed to eliminate the impact of the information inconsistency between the system-level and the discipline-level on the feasibility of optimal solutions. In the MCO approach, the impact of the inconsistency is treated by transforming the discipline-level constrained optimization problems into an unconstrained optimization problem using an exact penalty function. Based on the NR method, the performance of the MCO approach carried out by solving two multidisciplinary optimization problems. The obtained results show that the MCO approach has improved the convergence of CO significantly. These results prove that the present MCO succeeds in getting feasible solutions while the CO fails to provide feasible solutions with the used starting design points.","PeriodicalId":10680,"journal":{"name":"Concurrent Engineering","volume":"97 1","pages":"280 - 289"},"PeriodicalIF":0.0,"publicationDate":"2020-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91314284","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 : 2020-09-24DOI: 10.1177/1063293X20958930
Daniel Hinterreiter, L. Linsbauer, Kevin Feichtinger, Herbert Prähofer, P. Grünbacher
In the domain of industrial automation companies nowadays need to serve a mass market while at the same time customers demand highly customized solutions. To tackle this problem, companies frequently define software product lines (SPLs), which allow to automatically derive and further customize individual solutions based on a common platform. SPLs rely on defining common and variable platform features together with mappings, which define how the features are realized in implementation artifacts. In concurrent engineering such a feature-oriented process is challenged by the evolution of features, the complexity of feature-to-artifact mappings, and the diversity of the implementation artifacts. To address these challenges this paper introduces an approach supporting feature-oriented development and evolution in industrial SPLs. We outline the key elements and operations of our approach, including an implementation in a development environment. We report results of evaluating our approach regarding functional correctness, usefulness, and scalability based on a case study of a Pick-and-Place Unit (PPU) and an industrial case system.
{"title":"Supporting feature-oriented evolution in industrial automation product lines","authors":"Daniel Hinterreiter, L. Linsbauer, Kevin Feichtinger, Herbert Prähofer, P. Grünbacher","doi":"10.1177/1063293X20958930","DOIUrl":"https://doi.org/10.1177/1063293X20958930","url":null,"abstract":"In the domain of industrial automation companies nowadays need to serve a mass market while at the same time customers demand highly customized solutions. To tackle this problem, companies frequently define software product lines (SPLs), which allow to automatically derive and further customize individual solutions based on a common platform. SPLs rely on defining common and variable platform features together with mappings, which define how the features are realized in implementation artifacts. In concurrent engineering such a feature-oriented process is challenged by the evolution of features, the complexity of feature-to-artifact mappings, and the diversity of the implementation artifacts. To address these challenges this paper introduces an approach supporting feature-oriented development and evolution in industrial SPLs. We outline the key elements and operations of our approach, including an implementation in a development environment. We report results of evaluating our approach regarding functional correctness, usefulness, and scalability based on a case study of a Pick-and-Place Unit (PPU) and an industrial case system.","PeriodicalId":10680,"journal":{"name":"Concurrent Engineering","volume":"293 1","pages":"265 - 279"},"PeriodicalIF":0.0,"publicationDate":"2020-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86750993","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 : 2020-09-24DOI: 10.1177/1063293X20958927
G. Barbosa, S. Shiki, Iris Bento da Silva
This paper lays emphasis on a proposal of a tailor-made roadmap that manages the knowledge related to automation skills to be applied during the concurrent engineering phase. The approach of this Research and Development (R&D) roadmap is a particular guideline in a structured form that uses the concepts of Plan-Do–Check–Act (PDCA) method integrated to other quality tools and know-how in robotization, for management of this specific knowledge. This research work aims to guide the staff (project managers, engineers and technicians) who work multidisciplinary in concurrent engineering environment about the robot’s implementation steps and significant tips related to the deployment phases that can be beneficial when this proposed roadmap is applied. Also, it was developed to assist the robot’s installation and their validation on shop floor, aiming the best class of industrial processes regarding the automation. The main contribution and novelty of this paper is to propose a R&D roadmap that drives and assists the multidisciplinary work teams since the identification of robotization opportunities till the assurance of quality requirements established for the concerned process, in addition to a continuous improvement program to carry it on. Besides that, this work provides a high relevance in terms of knowledge management related to robotization expertise, spread of practical skills in concurrent engineering context and an unprecedented innovative contribution at science frontier.
{"title":"R&D roadmap for process robotization driven to the digital transformation of the industry 4.0","authors":"G. Barbosa, S. Shiki, Iris Bento da Silva","doi":"10.1177/1063293X20958927","DOIUrl":"https://doi.org/10.1177/1063293X20958927","url":null,"abstract":"This paper lays emphasis on a proposal of a tailor-made roadmap that manages the knowledge related to automation skills to be applied during the concurrent engineering phase. The approach of this Research and Development (R&D) roadmap is a particular guideline in a structured form that uses the concepts of Plan-Do–Check–Act (PDCA) method integrated to other quality tools and know-how in robotization, for management of this specific knowledge. This research work aims to guide the staff (project managers, engineers and technicians) who work multidisciplinary in concurrent engineering environment about the robot’s implementation steps and significant tips related to the deployment phases that can be beneficial when this proposed roadmap is applied. Also, it was developed to assist the robot’s installation and their validation on shop floor, aiming the best class of industrial processes regarding the automation. The main contribution and novelty of this paper is to propose a R&D roadmap that drives and assists the multidisciplinary work teams since the identification of robotization opportunities till the assurance of quality requirements established for the concerned process, in addition to a continuous improvement program to carry it on. Besides that, this work provides a high relevance in terms of knowledge management related to robotization expertise, spread of practical skills in concurrent engineering context and an unprecedented innovative contribution at science frontier.","PeriodicalId":10680,"journal":{"name":"Concurrent Engineering","volume":"18 1","pages":"290 - 304"},"PeriodicalIF":0.0,"publicationDate":"2020-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87598200","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 : 2020-09-01DOI: 10.1177/1063293X20957994
Gyesik Oh, Y. Hong
Many companies adopt concurrent engineering in their product-development projects in order to reduce time to market. Concurrent engineering requires careful management, since the uncertainty of transferred information leads to rework and renders a development process complex. Most of the existing studies on concurrent engineering have analyzed overlapping between two activities. The present study expanded the research scope by modeling the developmental process of the concurrent execution of multiple activities as the result of management decisions, the overlapping ratio, and the information transfer frequency. When multiple activities are overlapped, it is more difficult to model a development process, since the uncertainty of cascaded information has impacts on many activities. The quantitative model developed in the present study provides insights into the uncertainty of information and the product-development process. Based on the generalized process model for multiple-activity overlapping, the optimal decision to minimize project duration was considered. As a solution to the dilemma of the high computational burden of considering all feasible decision sets, this paper proposes a myopic heuristic. The project management heuristic proposed in this paper is intended to assist managers in the decision-making process, as well as reducing the intermediate deadlines in project main plan.
{"title":"Managing concurrent execution of multiple activities in product development process","authors":"Gyesik Oh, Y. Hong","doi":"10.1177/1063293X20957994","DOIUrl":"https://doi.org/10.1177/1063293X20957994","url":null,"abstract":"Many companies adopt concurrent engineering in their product-development projects in order to reduce time to market. Concurrent engineering requires careful management, since the uncertainty of transferred information leads to rework and renders a development process complex. Most of the existing studies on concurrent engineering have analyzed overlapping between two activities. The present study expanded the research scope by modeling the developmental process of the concurrent execution of multiple activities as the result of management decisions, the overlapping ratio, and the information transfer frequency. When multiple activities are overlapped, it is more difficult to model a development process, since the uncertainty of cascaded information has impacts on many activities. The quantitative model developed in the present study provides insights into the uncertainty of information and the product-development process. Based on the generalized process model for multiple-activity overlapping, the optimal decision to minimize project duration was considered. As a solution to the dilemma of the high computational burden of considering all feasible decision sets, this paper proposes a myopic heuristic. The project management heuristic proposed in this paper is intended to assist managers in the decision-making process, as well as reducing the intermediate deadlines in project main plan.","PeriodicalId":10680,"journal":{"name":"Concurrent Engineering","volume":"34 1","pages":"210 - 221"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88325490","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 : 2020-09-01DOI: 10.1177/1063293X20958936
Leonardo Medeiros Vaz de Oliveira, Hugo Ferreira dos Santos, Mariana Rodrigues de Almeida, J. A. F. Costa
The aim of this paper is to review the literature on the combined use of Quality Function Deployment (QFD) and Analytic Hierarchy Process (AHP) methodologies and to apply a comprehensive analysis over the resulting publications. The paper seeks to classify the articles with regard to their variations and extensions, and application areas. The articles are mostly applied in manufacturing, supply chain, higher education, strategy, service and sustainability. This review is characterized by a quantitative and qualitative approach of a non-probabilistic intentional sample composed of 100 academic papers – 98 articles and 2 reviews. For this purpose, the Scopus database was selected as a means to undertake a systematic investigation with a longitudinal cut from 1994 to 2015. The aim of this paper also contributes toward complementing Ho and Mehrjerdi revisions on deepening the QFD-AHP joint application. The limitation is related to the sample of works focus of this review, restricted to the Scopus database, thereby not characterizing the literature universe. A proposal for further investigations is to expand the search scope to other databases and to carry out a deeper analysis on each application area presented.
{"title":"Quality Function Deployment and Analytic Hierarchy Process: A literature review of their joint application","authors":"Leonardo Medeiros Vaz de Oliveira, Hugo Ferreira dos Santos, Mariana Rodrigues de Almeida, J. A. F. Costa","doi":"10.1177/1063293X20958936","DOIUrl":"https://doi.org/10.1177/1063293X20958936","url":null,"abstract":"The aim of this paper is to review the literature on the combined use of Quality Function Deployment (QFD) and Analytic Hierarchy Process (AHP) methodologies and to apply a comprehensive analysis over the resulting publications. The paper seeks to classify the articles with regard to their variations and extensions, and application areas. The articles are mostly applied in manufacturing, supply chain, higher education, strategy, service and sustainability. This review is characterized by a quantitative and qualitative approach of a non-probabilistic intentional sample composed of 100 academic papers – 98 articles and 2 reviews. For this purpose, the Scopus database was selected as a means to undertake a systematic investigation with a longitudinal cut from 1994 to 2015. The aim of this paper also contributes toward complementing Ho and Mehrjerdi revisions on deepening the QFD-AHP joint application. The limitation is related to the sample of works focus of this review, restricted to the Scopus database, thereby not characterizing the literature universe. A proposal for further investigations is to expand the search scope to other databases and to carry out a deeper analysis on each application area presented.","PeriodicalId":10680,"journal":{"name":"Concurrent Engineering","volume":"38 1","pages":"239 - 251"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78567810","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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