Middleware technologies for enabling next generation network services and applications

Middleware has a critical role in the converged ecosystem of IP-based next generation network technologies and applications, posing significant challenges for operators, service providers and end-users. Middleware-enabled rapid development and deployment of new applications allows early introduction of value-added services to attract new customers and retain existing ones. Established telcos often have a plethora of legacy systems, such as Intelligent Networks (IN), Business / Operational Support Systems (BSS/ OSS), Web-based systems and SIP/IMS-based services, which can all interoperate through open interfaces provided by the middleware layer, allowing a seamless, autonomic interaction between them. The arguments for a middleware-oriented consolidation of services in the telecommunications service provider/carrier space are also largely applicable to the enterprise segment. Even though there are differences in requirements and service expectations for corporate users as opposed to consumers, the trend towards consolidation of IT and telecom architectures is just as compelling. Furthermore, middleware approaches can offer scalability and load-balancing capabilities to critical infrastructure components and enable guaranteed QoS and seamless access to triple-play services. Moreover, in the emerging heterogeneous networking environment, cross-layer and inter-system optimization studies are essential to guarantee that these challenges are met. In this regard, large-scale distributed experimental testbeds with real or virtual components interconnected through an efficient middleware can be leveraged to validate promising approaches, algorithms and mechanisms prior to commercial deployment. This volume presents all papers of the 5th International Workshop on Next Generation Networking Middleware (NGNM 2008) and the 4th International Workshop on End-toend Virtualization and Grid Management (EVGM 2008), which were held as part of the 4th International Week on Management of Networks and Services (Manweek 2008) in Samos Island, Greece from September 22nd to September 26th, 2008.