MOF-based knowledge management for a digital business ecosystemMOF-based knowledge management for a digital business ecosystem Πλήρης Δημοσίευση σε Συνέδριο Conference Full Paper 2015-11-152004enWe describe a knowledge management model and middleware for managing the knowledge in a digital business ecosystem environment where SMEs exist cooperate, and compete. The knowledge management model follows the OMG’s MOF framework and allows the semantic description of both businesses and services following a multi-l ayered knowledge organization architecture in a way that share specifications but also differentiate from each other. Several kinds of metamodels are developed for describing various aspects of SMEs and their services. The middleware implementing the knowledge management model is able to handle MOF metamodels and uses XMI documents for metadata interchange. An ontology definition metamodel has been created to allow the import of OWL ontologies in the MOF-based knowledge management framework. This work is part of the EU-funded Digital Business Ecosystem (DBE) Integrated Project which aims at the development of a P2P infrastructure on top of which SME’s collaborate, compete and co-evolve.http://creativecommons.org/licenses/by/4.0/2nd IST Workshop on Metadata Management in Grid and P2P Systems Kazasis Fotis Καζασης Φωτης Gioldasis Nektarios Γιολδασης Νεκταριος Pappas Nikos Παππας Νικολαος Anestis Georgios Ανεστης Γεωργιος Christodoulakis Stavros Χριστοδουλακης Σταυρος Biotic communities--Management Ecosystems management ecosystem management biotic communities management ecosystems management