This volume constitutes the refereed proceedings of 14 international workshops held as part of OTM 2009 in Vilamoura, Portugal, in November 2009. The 93 revised full papers presented together with 2 invited talks were carefully reviewed and selected from a total of 131 submissions to the workshops. The volume starts with 7 additional revised poster papers of the OTM 2009 main conferences DOA, IS, and ODBASE. Topics of the workshop papers are ambient data integration (ADI 2009), context-aware mobile systems (CAMS 2009), enterprise integration, interoperability and networking (EI2N 2008), information system in distributed environments (ISDE 2009), system/software architectures (IWSSA 2009), mobile and networking technologies for social applications (MONET 2009), ontology content (OnToContent 2009), ontologies in distributed and interactive systems (ODIS 2009), fact-oriented modeling (ORM 2009), OTM Academy (OTMA 2009), semantic Web and Web semantics (SWWS 2009), semantic extensions to middleware: enabling large scale knowledge (SEMELS 2009), the next steps after SAWSDL (Beyond SAWSDL 2009), and community-based evolution of knowledge-intensive systems (COMBEK 2009).