COMPOSITION Brokering and Matchmaking components II

Summary

This report describes the results of Task 6.5 Brokering and Matchmaking for Efficient Management of Manufacturing Processesfrom M5 to M34. The Matchmaker is a core component of the COMPOSITION Collaborative Ecosystem, providing matching of buyers and sellers in the supply chain,based on services and their capabilities. Moreover, the Matchmaker provides aranking of offers during marketplace agents’negotiations. To this end, semantic matching of manufacturing capabilitiesand marketplace related servicesisappliedto find the best possible supplier to fulfil a request for a service, raw materials or products involved in the supply chain.The work has done in this task mainly affects the WP6 components such as the Marketplace Agents. Moreover, the Matchmaker functionality is exclusively depended on Collaborative Manufacturing Services Ontology that was implemented in the same WP. Furthermore, as the Matchmaker is offered through RESTful services it is connected with Security Framework of WP4.Different decision criteria for supplier selection according to severalqualitative and quantitative factors areconsidered (e.g. delivery time, distance, due date, quality, price, technical capability, past performance, payment methods and terms, etc.). Special focus wasgiven in dealing with the trade-off between performance and quality of matching, in order to provide responses in a reasonable time while at the same time minimization of computational complexities will be targeted. In order to infer new knowledge and provide matching betweenrequesters and providers, semantic rules are applied in an ontology, which is used as the knowledge base for the COMPOSITION ecosystem. Regarding the estimation ofsimilarity among offers and requests, as well as the evaluation ofthem,well-established weighted algorithms and metrics areused alongside with the semantic rules in order to address the objectivesof COMPOSITION Ecosystem at the best possible way. To sum up, for Task 6.5 technologies, such as semantics and rules, were applied in a Manufacturing Marketplace for matching and evaluating offers in real-time. This was enabled bytheusage of theCOMPOSITION Ontology which connects manufacturing with e-commerce domain. The implementedweb-basedsystem was able to extend the usage of this Ontology. The Ontology was not used only for interoperability, but it is used also for real-time decision-making capitalizing on knowledge inference. Furthermore, the COMPOSITION Matchmaker enhance its evaluation capabilitiesby adopting weighted scores algorithms in order to provide a common solution for suppliers matchmaking and real-time offers evaluation. In comparison with existing frameworks which are not completely related to manufacturing domain in connection with the supply chain domainorthey are exclusively designed for one system and they are not easily extended and adoptive by otherecosystems, the COMPOSITION Matchmaker is able to support a connected Manufacturing Ecosystem and it can be effortlessly transferred to other ecosystems as its services offered as web services.

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Ecosystem for Collaborative Manufacturing Processes _ Intra- and Interfactory Integration and Automation
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