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|کد مقاله||سال انتشار||تعداد صفحات مقاله انگلیسی||ترجمه فارسی|
|5638||2010||12 صفحه PDF||سفارش دهید|
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Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)
Journal : International Journal of Production Economics, Volume 127, Issue 1, September 2010, Pages 73–84
The research proposes an agent based approach, properly linked to production planning activities, able to support negotiation in catalogue based e-marketplace. In this context, production planning tools allow the creation of a link between commercialization and manufacturing activities, providing a better service for all the involved agents. At the same time negotiation tools take into account buyers’ and sellers’ identities and goals, providing better global satisfaction. A discrete event simulation environment has been properly developed. The simulation results show how to obtain an “e-marketplace mapping” in order to evaluate the real value added in a dynamic environment. This information can support Small and Medium Enterprises in e-marketplace adoption decision making process.
The development of Information and Communication Technologies (ICT) is greatly changing the way to do business for several manufacturing companies. Especially, Business-to-Business (B2B) applications are demonstrating the capacity to provide real value to manufacturing industries by allowing better global performances. Some researchers are indicating that large manufacturers have adopted B2B e-commerce leaving their suppliers, mostly Small and Medium Enterprises (SMEs), in the manufacturing sector, with little choice but to follow. A recent survey of the Aberdeen Group (2006) evaluated the following benefits for companies that adopt B2B strategies: • reduction of their requisition-to-order cycles by 75%; •reduction of their requisition-to-order costs by 48%; •reduction of their maverick spends by 36%. The following table reports the trend of the e-procurement applications upon 2001 and 2006 (Table 1).It is, therefore, very important for SMEs’ managers to understand the impact of these activities on their organizations’ performance and competitiveness. The literature on e-commerce (Favier et al., 2000) reveals a number of associated benefits. First of all the SMEs can access international markets at minimal cost: it can represent one crucial competitive advantage for SMEs. Second, it can be obtained at a reduction in transaction costs, especially for e-procurement and economies of scale such as consolidation of sales or group buying. Taking a broader perspective, it can be summarized that e-commerce generates positive impacts on operations management and improves efficiency and effectiveness. Third, in a manufacturing context, e-commerce creates potential opportunities such as faster product design, speedier ordering of parts and components, reduced lead times and lower inventory costs. Moreover, according to Barrat and Rosdahl (2002) it is fundamental to reduce waste and inefficiency in highly fragmented industries, by increasing visibility and a neutral knowledge base for both buyers and sellers. Buyers or sellers usually do not establish such marketplaces, which are frequently set up by an independent company such as an ICT provider or a bank. This is because the external “third part” aims to put together separate group of buyers and sellers in order to establish a sort of “procurement virtual district”. The seller benefits generally come from getting access to more buyers expanding its market, while the buyer benefits come from the possibility to get lower procurement costs, wider choice of products and better quality. Differently, the owner gets its income from the transaction fees and eventually from some added value service such as secure transactions or financial services. In such e-marketplace, procurement actions are usually catalogue-based and the relation among traders is generally based on a repetitive “one-off” trade that ends along with the specific transaction, even if several transactions can take place among the same partners in forthcoming periods (Hoffman et al., 2002). Using a broader perspective, e-marketplaces can be classified in: Maintenance, Repair and Operations (MRO) Hubs, Catalogue, Yield Managers and Exchange. Differently, according to the buyers’ actions, they can be organized in Horizontal and Vertical and, focusing on their centricity, in Buyer Centric, Seller Centric, Neutral linear and Neutral exponential (Grieger, 2003). In particular, in this paper it will be considered a private neutral linear e-marketplace, owned by a third independent part. It is supposed the existence of a set of registered buyers (also called customers) and a set of registered sellers (also called suppliers). They are allowed to play procurement actions (see Fig. 1). Examples of such e-marketplaces are CPGmarket, Tribon Marketplace, ChemConnect, etc.Specifically, the research presented in this paper aims at understanding what kind of advantages buyers and sellers can gain by the implementation of value added services in an e-marketplace. This kind of business model is most promising for Small and Medium Enterprises (Ordanini et al., 2004). The context of the research is a neutral linear marketplace where a set of registered agents operate in a Make to Order environment. The value added services are concerning: Multi Agent System methodology, negotiation and production planning tools linked among them. Moreover, a simulation environment has been developed in order to test the proposed methodologies in different dynamic conditions. The paper is structured as follows: Section 2 provides a literature review about Multi Agent Systems (MAS) and negotiation tools in B2B applications, the e-marketplace context is described in Section 3; in Section 4 the negotiation process is explained and in Section 5 the production planning model is described; in Section 6 the developed simulation environment is briefly presented and the case study is analyzed. The simulation results are reported in Section 7. Finally, conclusions and further research paths are drawn in Section 8.
نتیجه گیری انگلیسی
This research deals with concrete added value services in e-business applications for SMEs. In particular, an innovative approach has been proposed creating a link between production planning and negotiation in a neutral e-marketplace. The proposed approach is based on Multi Agent Architecture and open source simulation tool. Specifically, the research underlines how, through the simulation, it can be evaluated the real added value of the proposed approach and who, among customers and suppliers, get the main advantages from them. The simulation results allow one to obtain a behaviour map of the e-marketplace performance in several dynamic conditions, both for customers and for suppliers. As a matter of fact, one of the main barriers to e-marketplace adoption by SMEs is their incapacity to understand the related benefits and risks, particularly in changing market conditions. The behaviour map obtained in this paper can be used as a support to the decision-making process: a generic SME can evaluate if it participates or not in an e-marketplace, considering the actual market conditions, and it can easily estimate the performance variation when the market conditions change (risks evaluation). Moreover, this research proposes an index profit (IP) value approach to set the production planning constraints. The simulation results evidence that the added value is balanced among customers and suppliers (particularly in high volume condition). Differently, if the required volume is low or medium, the IP value approach does not significantly increase the level of the e-marketplace performance. Consequently, a hybrid approach in which the IP value is utilized only for high volume can lead to better results for both customers and suppliers. Further research paths will concern the development of a decision support system for all the involved actors in order to change, during the negotiation, their strategy approaches: each actor will store the information regarding the negotiations and it will select the more opportune negotiation strategy by using an appropriate learning algorithm. Moreover, a coordination approach will be developed in order to reduce the profit unbalance among all the suppliers participating at the e-marketplace. Finally, a fuzzy engine will be useful to set the IP value approach to optimize the added value for both customers and suppliers.