Middleware 2011

Volume 7049 of the series Lecture Notes in Computer Science pp 410-430

The Role of Ontologies in Emergent Middleware: Supporting Interoperability in Complex Distributed Systems

  • Gordon S. BlairAffiliated withSchool of Computing and Communications, Lancaster University
  • , Amel BennaceurAffiliated withINRIA, CRI Paris-Rocquencourt
  • , Nikolaos GeorgantasAffiliated withINRIA, CRI Paris-Rocquencourt
  • , Paul GraceAffiliated withSchool of Computing and Communications, Lancaster University
  • , Valérie IssarnyAffiliated withINRIA, CRI Paris-Rocquencourt
  • , Vatsala NundlollAffiliated withSchool of Computing and Communications, Lancaster University
  • , Massimo PaolucciAffiliated withDOCOMO Euro-Labs


Interoperability is a fundamental problem in distributed systems, and an increasingly difficult problem given the level of heterogeneity and dynamism exhibited by contemporary systems. While progress has been made, we argue that complexity is now at a level such that existing approaches are inadequate and that a major re-think is required to identify principles and associated techniques to achieve this central property of distributed systems. In this paper, we postulate that emergent middleware is the right way forward; emergent middleware is a dynamically generated distributed system infrastructure for the current operating environment and context. In particular, we focus on the key role of ontologies in supporting this process and in providing underlying meaning and associated reasoning capabilities to allow the right run-time choices to be made. The paper presents the Connect middleware architecture as an example of emergent middleware and highlights the role of ontologies as a cross-cutting concern throughout this architecture. Two experiments are described as initial evidence of the potential role of ontologies in middleware. Important remaining challenges are also documented.


interoperability ontologies emergent middleware system-of- systems