The Experts below are selected from a list of 189 Experts worldwide ranked by ideXlab platform

Egon Ostrosi - One of the best experts on this subject based on the ideXlab platform.

  • Optimization of Product configuration assisted by fuzzy agents
    International Journal on Interactive Design and Manufacturing (IJIDeM), 2011
    Co-Authors: Egon Ostrosi, Alain-jérôme Fougères
    Abstract:

    Configurable Product design is a collaborative and distributed process. Supporting collaborative and distributed design for configuration with computer technology is a strategy to enhance the ability of actors to interact with each other and with computational resources. Therefore, from process and Product point of views, Configurable Product design can be assisted by multiagent system. This paper proposes fuzzy agents to assist collaborative and distributed design for optimal configuration. The motivation of this research is that more effective design decisions can be made by fuzzy agents when fuzzy design information is considered in a fuzzy interaction based process and heterogeneous, dynamic adaptive and fuzzy evolving systems. A fuzzy optimal Product configuration mathematical formulation is proposed. The modelling and the implementation of an agent-based system complies with this formal basis. In the proposed agent-based system, there are four communities of agents: specification community, function community, physical solution community and Production constraint community. During design process, the interactions between agents permit to emerge, first, the consensual physical solutions to configure a Product, and secondly, the optimal configuration. The proposed optimization algorithm is inspired from adaptive and distributed routing algorithms used in computer networks. The algorithm allows optimization of Product configuration by exchange of the optimal solution agent network information between the neighbour solution agents. A case study is presented to demonstrate the potential of this approach.

  • Product modelling for Configurable design in advanced cad system
    2011
    Co-Authors: Egon Ostrosi, Amadou Coulibaly, M Ferney
    Abstract:

    Design for configuration provides an efficient and effective means to realise the Product variety. This chapter tackles the Product modelling in advanced CAD systems for Product configuration using an UML (Unified Modelling Language) approach and a computational model. The introduction of fuzziness to capture the subjective nature of the design for configuration permits to consider different use cases in the early conceptual design phase of the Product. Furthermore, the building of multiple fuzzy models, which correspond to the multiple views of a Configurable Product, permits to propose both the functional architecture and physical architecture to configure a Product. Then, the computational model permits to generate a solution which satisfies the customer requirement and the constraints of different process views. The association of the computational model and the CAD parametric model allows the generation of different configurations in a CAD system. An application shows the potential of the proposed approach.

  • Generalised design for optimal Product configuration
    The International Journal of Advanced Manufacturing Technology, 2010
    Co-Authors: Egon Ostrosi
    Abstract:

    Design of Configurable Product family or design for configuration has emerged as an efficient tool to deal with the new challenges of a continuous dynamic and volatile market. Design for configuration provides an efficient and effective mean to realise the Product variety. This paper tackles the optimal Product configuration. The introduction of fuzziness to capture the subjective nature of the design for configuration process, the building of multiple fuzzy models, which correspond to the multiple views of a Configurable Product, permits to propose the possible physical solutions to configure a Product. It corresponds to the consensus problem of design for configuration. The extended problem formulation is the proposition of an optimal Product configuration. The optimal solution is searched using p median problem formulation. The proposed approach is validated by the design case study of a Configurable Product.

  • An UML based approach for Product architecture modelling in design for configuration process
    2009 International Conference on Computers & Industrial Engineering, 2009
    Co-Authors: Amadou Coulibaly, Egon Ostrosi
    Abstract:

    Design for configuration provides an efficient and effective means to realize the Product variety. This paper tackles the architecture modelling for Product configuration using an UML (Unified Modelling Language) approach. The introduction of fuzziness to capture the subjective nature of the design for configuration permits to consider different using cases in the early conceptual design phase of the Product. Furthermore, the building of multiple fuzzy models, that corresponds to the multiple views of a Configurable Product, permit to propose both the functional architecture and physical architecture to configure a Product. It opens the path to the Product behaviour simulation during the early phases of the Product design and development. The application of the approach in a power system shows the potential of the fuzzy UML modelling.

  • Product Family Modelling in Conceptual Design Based on Parallel Configuration Grammars
    Strojniški vestnik, 2008
    Co-Authors: Eugeniu-radu Deciu, Egon Ostrosi, Michel Ferney, Marian Gheorghe
    Abstract:

    In this paper, a Product family modelling in conceptual design approach based on configuration grammars is proposed and developed. Product modelling is essential during the conceptual design both in the functional and the structural design spaces. However, there is no adapted formal representation to support the modelling of Configurable Products. Grammars can be considered as formal powerful tools to represent the relationship inside the Configurable Products. Therefore, we propose a configuration grammar design approach which is based on two types of grammars: a functional grammar for configuration and a structural grammar for configuration. The two configuration grammars work simultaneously on different abstraction levels of the Product family. Therefore, the evolution of the Product model, from the stage offunctional structure to the stage of physical structure, can be represented in an adapted way. The configuration grammars design approach constitutes an effective tool for the representation and the modelling of Configurable Product family. The proposed design approach is validated by the application to a design case of industrial Products - the design of an external gear pump family. The results of the application validate the pertinence of our approach.

Paul D Witman - One of the best experts on this subject based on the ideXlab platform.

  • software Product lines and Configurable Product bases in business applications a case from financial services
    Hawaii International Conference on System Sciences, 2009
    Co-Authors: Paul D Witman
    Abstract:

    Software Product Lines (SPLs) provide a methodology for creating Products based on a common set of core assets. In an environment that is already broadly successful with software reuse, including large-grained software reuse, can Software Product Lines provide a framework to understand the successes of the organization? This paper presents a case study of a large financial institution’s internal software development group, and its use of SPL methods and maturities. Adoption of SPL methods in business applications and the organization to support them is examined. Two different SPL maturity levels are observed, and the organization has made explicit choices about maturity levels vs. time to market requirements.

  • HICSS - Software Product Lines and Configurable Product Bases in Business Applications A Case from Financial Services
    2009 42nd Hawaii International Conference on System Sciences, 2009
    Co-Authors: Paul D Witman
    Abstract:

    Software Product Lines (SPLs) provide a methodology for creating Products based on a common set of core assets. In an environment that is already broadly successful with software reuse, including large-grained software reuse, can Software Product Lines provide a framework to understand the successes of the organization? This paper presents a case study of a large financial institution’s internal software development group, and its use of SPL methods and maturities. Adoption of SPL methods in business applications and the organization to support them is examined. Two different SPL maturity levels are observed, and the organization has made explicit choices about maturity levels vs. time to market requirements.

Alain-jérôme Fougères - One of the best experts on this subject based on the ideXlab platform.

  • A fuzzy configuration multi-agent approach for Product family modelling in conceptual design
    Journal of Intelligent Manufacturing, 2012
    Co-Authors: E. Ostrosi, M Ferney, Alain-jérôme Fougères, D. Klein
    Abstract:

    Product modelling is an essential issue in the Configurable Product design. Many attempts have been made for modelling the Configurable Products. However, most of conducted research considers the Configurable Product modelling as an arrangement problem of a predefined set of components into a valid Product structure. This paper considers configuration not only as a structural problem but also as a collaborative design problem. Product configuration must consider explicitly different actors and their perspectives influencing simultaneously the design of Configurable Products. Solving Product configuration problems requires collaboration of actors from multiple distributed views. Therefore, from process and Product point of views, engineering design of Configurable Products can be assisted by multi-agents systems. Following up this consideration, this paper proposes a Fuzzy Configuration Grammar based agents to assist collaborative and distributed design for configuration. Based on the distributed fuzzy models, fuzziness of interactions during the collaborative and distributed design for configuration, a computational approach for Product configuration is developed. Modelling and implementation of an agent-based system, called G-APIC (Grammars based Agents for Product Integrated Configuration), is presented. In this agent-based system, there are four communities of agents: requirement community of agents, function community of agents, physical solution community of agents and process constraint community of agents. A fuzzy set of consensual physical solution agents, a sub community of alternative physical solution agents satisfying both customer’s requirements and different process views constraints, emerges from intra and inter-communities interactions of agents. Then, the proposed Fuzzy Configuration Grammar allows the interactions between these fuzzy consensual solution agents. The optimal Product configuration, a fuzzy set of interacted consensual solution agents, emerges from these interactions. A case study illustrates the proposed approach.

  • Optimization of Product configuration assisted by fuzzy agents
    International Journal on Interactive Design and Manufacturing (IJIDeM), 2011
    Co-Authors: Egon Ostrosi, Alain-jérôme Fougères
    Abstract:

    Configurable Product design is a collaborative and distributed process. Supporting collaborative and distributed design for configuration with computer technology is a strategy to enhance the ability of actors to interact with each other and with computational resources. Therefore, from process and Product point of views, Configurable Product design can be assisted by multiagent system. This paper proposes fuzzy agents to assist collaborative and distributed design for optimal configuration. The motivation of this research is that more effective design decisions can be made by fuzzy agents when fuzzy design information is considered in a fuzzy interaction based process and heterogeneous, dynamic adaptive and fuzzy evolving systems. A fuzzy optimal Product configuration mathematical formulation is proposed. The modelling and the implementation of an agent-based system complies with this formal basis. In the proposed agent-based system, there are four communities of agents: specification community, function community, physical solution community and Production constraint community. During design process, the interactions between agents permit to emerge, first, the consensual physical solutions to configure a Product, and secondly, the optimal configuration. The proposed optimization algorithm is inspired from adaptive and distributed routing algorithms used in computer networks. The algorithm allows optimization of Product configuration by exchange of the optimal solution agent network information between the neighbour solution agents. A case study is presented to demonstrate the potential of this approach.

M Gheorghe - One of the best experts on this subject based on the ideXlab platform.

  • Configurable Product design using multiple fuzzy models
    Journal of Engineering Design, 2005
    Co-Authors: E Deciu, Egon Ostrosi, Michel Ferney, M Gheorghe
    Abstract:

    The present economic environment is characterized by increasing market demands for customized Products. Configurable Product design or design for configuration represents the solution for the new market challenges. Configurable Product design is complex. The development of a methodology of design for configuration must take into account the different views of the Product that occur during the design process, the great number of Product variants that can be generated and also the customer-oriented characteristic of the Configurable Products. Moreover, the design for configuration must represent and manipulate the uncertainty throughout all design stages. This paper proposes the development of an integrated approach of Configurable Product design based on multiple fuzzy models. The transition from customer specifications into physical solutions is performed by the help of multiple fuzzy models: the fuzzy Product specification model, the fuzzy functional network, the fuzzy physical solution model and the fuz...

  • CONFIGURATION OF Product FAMILIES USING FUZZY SET APPROACH
    2003
    Co-Authors: E Deciu, Egon Ostrosi, M Ferney, M Gheorghe
    Abstract:

    Globalisation, market saturation and fragmentation, and rapid innovation are redefining the way that many companies are doing business. Designing Configurable Products families provides efficient and effective means to realise the Product variety that satisfies the market demands. However, the development of Configurable Products increases the complexity of the design process. One way to reduce this complexity is to formalise the Configurable Product families and their design process. In this paper, fuzzy set theory was applied to deal with the configuration design problem. This study proposes a multiple-fuzzy models approach that supports the development of a Configurable Product family throughout the design process. The multiple-fuzzy models are the following: requirement-function model, fuzzy functional network, function-physical solution model and constraint-physical solution model. The fuzzy functional network maps the relations between the Product functions. Having the multiple fuzzy models, the properties of the fuzzy relationships and their corresponding operations, final valid Product configurations can be generated. An example illustrates the proposed approach.

Hans L Johannesson - One of the best experts on this subject based on the ideXlab platform.

  • towards sequence planning based on Configurable Product and manufacturing system platforms
    DS 61: Proceedings of NordDesign 2010 the 8th International NordDesign Conference Göteborg Sweden 25.-27.08.2010, 2010
    Co-Authors: Kristofer Bengtsson, Marcel Thomas Michaelis, Christoffer E Levandowski, Bengt Lennartson, Hans L Johannesson
    Abstract:

    Operation sequences are central in the interaction between Product and manufacturing development. This is because the sequences create an understanding of how a Product is manufactured. The high degree of complexity in managing and planning manufacturing operations during the development of a Configurable Product and manufacturing platform requires a new and more flexible sequence planning approach. By integrating Configurable Product and manufacturing system platform descriptions, Product variance, manufacturing system flexibility, and Product and manufacturing system complexity can all be efficiently adapted to each other by considering interrelated constraints. Such an integrated platform system also provides the information required to describe the operations needed to manufacture an instantiated Product variant. This paper proposes an approach in which sequences are viewed based on the relations among self-contained operations, thus saving engineers from manually constructing sequences for each Product variant. The sequences of operations related to, for example, the part flow for a specific platform configuration, robot operations or operator tasks can be automatically visualized through the use of different perspectives.

  • supply chain Product development collaboration using Configurable Product platform models
    ASME Conference Proceedings. International Design Engineering Technical Conferences and Computers and Information in Engineering Conference IDETC CIE2, 2010
    Co-Authors: Andreas Lindquist Wahl, Stellan Gedell, Hans L Johannesson
    Abstract:

    Collaborative Product platform development in the supply chain faces problems not only with inefficient knowledge management and information exchange between collaborating partners, but also with configuration and carry-over strategies - both of which result in large amounts of system variants to maintain, and restrained reuse. To address these problems, this article proposes a new, more system-oriented and abstract, knowledge-based approach to define and describe Configurable Product platforms. A new platform model concept with a new modeling procedure, consisting of linked, fully Configurable generic and autonomous sub-systems, has been devised. The model has been implemented as a separate platform configuration (PFC) system within an envisioned Product lifecycle management (PLM) system architecture. The PFC system is the common base for system configuration as well as for information and knowledge exchange between collaborating partners. The proposed platform model and collaborative modeling procedure have been partly verified and validated, in cooperation with the industrial partners participating in a joint research project.

  • knowledge based Configurable Product platform models
    Handbook of Research in Mass Customization and Personalization Vol 1 Editors Frank T Piller & Mitchell M Tseng World Scientific 2009, 2009
    Co-Authors: Hans L Johannesson, Stellan Gedell
    Abstract:

    AbstractProduct platform development faces problems with inefficient knowledge management and reuse, as well as configuration strategies leading to intolerable part number growth. In order to address these problems a system oriented and abstract knowledge based approach is proposed to define and to describe Configurable Product platforms. A modeling procedure and a new fully Configurable platform model concept, consisting of linked fully Configurable generic and autonomous sub-systems, have been developed. The model has been implemented as a separate platform configuration (PFC) system being the base for system configuration. The proposed platform model has been partly verified and validated in cooperation with the industrial partners participating in the referred research project.

  • integrated and Configurable Product and manufacturing system models
    DS 36: Proceedings DESIGN 2006 the 9th International Design Conference Dubrovnik Croatia, 2006
    Co-Authors: A Claesson, Hans L Johannesson
    Abstract:

    Many automotive companies are developing Products using a platform approach. This approach puts new requirements on Product and process modeling and the design methods employed. This paper presents an approach to support platform based Product development through an integrated and Configurable Product and manufaturing system model. This modeling approach is also put into the larger context of the company through an outline of an integrated view of the three domains: Product, manufacturing, and sales & marketing. The described approach is based on the concept of Configurable components as the core element in the model providing for modeling of the required Product variety of a platform.