Personne :
Lefrançois, Pierre

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Lefrançois
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Pierre
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Université Laval. Département d'opérations et systèmes de décision
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ncf10155113
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1993 - 199942010 - 20121
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Voici les éléments 1 - 5 sur 5
  • Publication
    Restreint
    Networked manufacturing : the impact of information sharing
    (Elsevier, 1998-12-21) Lefrançois, Pierre; Montreuil, Benoit; D'Amours, Sophie; Soumis, François
    In this paper we address the impact of information sharing between firms of a manufacturing network. Firms of the network are selected and scheduled to produce an order based on a price—time evaluation of their bids using an optimal planning model for networked manufacturing. Networking strategies, where business relationships are characterized by different levels of shared information on price and capacity, are classified. An illustrative example sketches the impact of information sharing on networked manufacturing using three different kinds of bidding protocol expressing how firms aggregate their information to conform to networking requirements. Finally, the results show that higher networking flexibility in terms of price—time alternatives can be achieved when firms favor tight partnership relations, offering consequently a better scheduling performance.
  • Publication
    Restreint
    Design of an Information System for a Networked Industry
    (1996-09-01) Lefrançois, Pierre; Montreuil, Benoit; D'Amours, Sophie
    The industrial network is composed of active firms and public organizations evolving in a specific industry and of an industrial network manager. The information system for a networked industry (NetIndSI) is constructed to transfer information between firms of a business network. The firms are modeled as processors in a network linked together to manufacture products or deliver services. These processors can perform many tasks on the NetIndSI such as bidding on a project, requesting bids for a project, analyzing strategic information, developing bidding strategies, developing strategic alliances, managing the firm operations and contracts, and archiving pertinent information. The industrial network manager is modeled to maximize the network contribution to its member's. Its role is: to manage membership; to answer requests from the network members; to ensure information flow between the network members; to distribute decision supporting tools to the network members; and to develop new business opportunities for the members.
  • Publication
    Restreint
    A decision support system for operations scheduling in a distributed environment
    (Tandfonline, 2012-05-31) Lefrançois, Pierre; Montreuil, Benoit; Ramudhin, Amar; D'Amours, Sophie
    Current industrial trends favor distributed manufacturing with extensive use of subcontracting. In this context we present a two—level decision support system for operations scheduling where a set of firms (subcontractors) is competing for the realization of the manufacturing operations pertaining to a product. We consider the case where operation precedences are given in form of an assembly tree. Each firm bidding for an operation specifies a start time, a processing time, a production cost together with a storage cost for storing the work-in-process resulting from that operation beyond its completion time. At the first level, IBIS, an information support system is used for bid preparation based on resource usage, production requirements and production operations costs. At the second level, given the bids we present a procedure for finding the assignment of operations to firms that minimizes production and storage costs.
  • Publication
    Restreint
    Unquality-costing sampling plans by variables and their implications on supply relationships
    (Elsevier, 1993-06-04) Lefrançois, Pierre; Montreuil, Benoit; Ramudhin, Amar; D'Amours, Sophie
    This paper presents a simple yet effective approach for unquality-costing in an outsourcing/subcontracting environment. It first presents some of the usual approaches for defining supply relations based on cost-quality issues and then introduces our proposed unquality-costing sampling plans by variables. The approach is derived from the Taguchi loss-function model. A simple sampling Table is presented for the case of symmetric quadratic loss-functions and an illustrative example of its application in a practical setting is then presented. The last Section of the paper finally discusses the advantages and disadvantages resulting from its generalized application to outsourcing and subcontracting within a network manufacturing environment.
  • Publication
    Accès libre
    An agent-based perspective to design networked manufacturing information systems
    (1996-01-01) Lefrançois, Pierre; Montreuil, Benoit; Ramudhin, Amar; D'Amours, Sophie
    ln this paper. a Networked Manufacturing lnformation System is presented. The system is constructed to transfer manufacturing information between firms of a business network. The business network is composed of manufacturing and logistic firms. The firms are modeled as processors in a network linked together to manufacture products. These processors can perform many tasks such as bidding on a project. requesting bids for a project analyzing strategie information. developing bidding strategies, managing the firm operations and contracts. and archiving pertinent information.